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Market Reaction to Stock Splits in Largeand Liquid Stocks: Evidence from the
Indian Stock Market
Nehal Joshipura
Abstract
This study investigates market reaction to stock splits
using the standard event study methodology. The
study uses stock splits in large and liquid stocks in the
Indian markets during the years 2001 to 2012.
According to a semi-strong form of efficient market
hypothesis, any information content associated with
corporate announcements must be reflected fully on
announcement day itself resulting in an abnormal
return. However, several studies report abnormal
returns surrounding announcement as well as
effective day of stock split, and many competing
hypotheses are presented to explain such abnormal
returns. Studies from India on market reaction to stock
splits offer mixed results. (Gupta & Gupta, 2007) find
significant abnormal returns surrounding ex-split day
and not surrounding announcement day. (Joshipura,
2009) and (Ray, 2011) find abnormal returns
surrounding announcement day. This study reports
reaction to stock split in large and liquid stocks that are
constituents of NIFTY or NIFTY Junior.
JEL Classification: G14
Market Reaction to Stock Splits in Large and Liquid Stocks:Evidence from the Indian Stock Market
ISSN: 0971-1023 | NMIMS Management ReviewDouble Issue: Volume XXIII October-November 2013 University Day Special Issue January 2014
I. INTRODUCTION
Stock split, as the term suggests, results in reduction in
face value of a stock and thereby corresponding
increase in number of outstanding shares. For
instance, if a company goes for a 1:10 stock split, Rs. 10
face value stock is divided into 10 shares with face
value of Re. 1 each. Nothing changes as far as total
share capital of a company is concerned. Hence, when
a company decides to split its stocks, price of the stock
should come down in the proportion of the split ratio.
If 1:10 stock split is announced, then stock price should thcome down to 1/10 of the price before the split. This
means that stock split is nothing but a mere cosmetic
event and hence, announcement about the stock split
does not contain any information to affect stock price
in a way that leads to abnormal positive returns. Even if
there is any information content associated with
announcement of the stock split, it should be reflected
in the form of abnormal returns on the announcement
day itself. Having said that, several studies on
developed markets report abnormal returns
surrounding announcement and ex-days of stock split.
Not many studies are available in the Indian context as
stock split was not a feasible alternative for Indian
companies earlier. Prior to 1999, SEBI allowed only two
face values - rupees ten and rupees hundred. Some of
the important studies examining the effect of stock
split in the Indian context are by (Mishra, 2007), (Gupta
& Gupta, 2007), (Joshipura, 2009), (Ray, 2011) and
(Chakraborty, 2012). Evidences from these studies are
mixed so far. (Chakraborty, 2012) reports that the
abnormal positive returns effect associated with stock
split is concentrated to small and illiquid stocks.
II. Motivation for the Study
This study stems from the fact that not many studies
are available in the Indian context. Also, the results are
mixed and do not provide any conclusive evidence on
market reaction to stock split. This study intends to
contribute by studying market reaction to stock split in
large and liquid stocks only. This is to eliminate any
possibility of abnormal returns (if any) associated with
stock split announcements being attributed to small
size and illiquidity of stocks as explained by
(Chakraborty, 2012) in her paper. If such abnormal
returns are not associated with stock split, it provides
an important result in the Indian context.
The paper is organized as follows. Section III provides
literature review, section IV describes data and
methodology, the results are discussed in section V
and conclusion is provided in section VI.
III. LITERATURE REVIEW
In theory, stock splits are mere cosmetic corporate
events and therefore, announcement of stock split
should not have any significant impact on market
returns of the firm. However, empirical evidence from
developed markets suggests that announcement of a
stock split leads to significant positive returns
surrounding announcement and ex-days of stock split.
Even if one believes that stock split carries some
information content about the future prospects,
according to semi strong form of efficient market
hypothesis, the entire positive abnormal return should
be reflected on such announcement itself and no
abnormal returns should be present surrounding ex-
day. However, as mentioned earlier, that is not the
case. Many hypotheses are presented to explain
p o s i t i v e a b n o r m a l r e t u r n s s u r r o u n d i n g
announcement and ex-date of stock split. Review of
literature from the developed markets with major
competing hypotheses is presented below, followed
by review of literature on studies on market reaction to
stock split from Indian markets.
Market Reaction to Stock Splits in Large and Liquid Stocks:Evidence from the Indian Stock Market
ISSN: 0971-1023 | NMIMS Management ReviewDouble Issue: Volume XXIII October-November 2013 University Day Special Issue January 2014
130 131
![Page 2: Market Reaction to Stock Splits in Largeand Liquid Stocks ... · Studies from India on market reaction to stock splits offer mixed results. (Gupta & Gupta, 2007) find ... hypothesis,](https://reader030.vdocuments.net/reader030/viewer/2022020412/5ad712b67f8b9a6b668c746d/html5/thumbnails/2.jpg)
Market Reaction to Stock Splits in Largeand Liquid Stocks: Evidence from the
Indian Stock Market
Nehal Joshipura
Abstract
This study investigates market reaction to stock splits
using the standard event study methodology. The
study uses stock splits in large and liquid stocks in the
Indian markets during the years 2001 to 2012.
According to a semi-strong form of efficient market
hypothesis, any information content associated with
corporate announcements must be reflected fully on
announcement day itself resulting in an abnormal
return. However, several studies report abnormal
returns surrounding announcement as well as
effective day of stock split, and many competing
hypotheses are presented to explain such abnormal
returns. Studies from India on market reaction to stock
splits offer mixed results. (Gupta & Gupta, 2007) find
significant abnormal returns surrounding ex-split day
and not surrounding announcement day. (Joshipura,
2009) and (Ray, 2011) find abnormal returns
surrounding announcement day. This study reports
reaction to stock split in large and liquid stocks that are
constituents of NIFTY or NIFTY Junior.
JEL Classification: G14
Market Reaction to Stock Splits in Large and Liquid Stocks:Evidence from the Indian Stock Market
ISSN: 0971-1023 | NMIMS Management ReviewDouble Issue: Volume XXIII October-November 2013 University Day Special Issue January 2014
I. INTRODUCTION
Stock split, as the term suggests, results in reduction in
face value of a stock and thereby corresponding
increase in number of outstanding shares. For
instance, if a company goes for a 1:10 stock split, Rs. 10
face value stock is divided into 10 shares with face
value of Re. 1 each. Nothing changes as far as total
share capital of a company is concerned. Hence, when
a company decides to split its stocks, price of the stock
should come down in the proportion of the split ratio.
If 1:10 stock split is announced, then stock price should thcome down to 1/10 of the price before the split. This
means that stock split is nothing but a mere cosmetic
event and hence, announcement about the stock split
does not contain any information to affect stock price
in a way that leads to abnormal positive returns. Even if
there is any information content associated with
announcement of the stock split, it should be reflected
in the form of abnormal returns on the announcement
day itself. Having said that, several studies on
developed markets report abnormal returns
surrounding announcement and ex-days of stock split.
Not many studies are available in the Indian context as
stock split was not a feasible alternative for Indian
companies earlier. Prior to 1999, SEBI allowed only two
face values - rupees ten and rupees hundred. Some of
the important studies examining the effect of stock
split in the Indian context are by (Mishra, 2007), (Gupta
& Gupta, 2007), (Joshipura, 2009), (Ray, 2011) and
(Chakraborty, 2012). Evidences from these studies are
mixed so far. (Chakraborty, 2012) reports that the
abnormal positive returns effect associated with stock
split is concentrated to small and illiquid stocks.
II. Motivation for the Study
This study stems from the fact that not many studies
are available in the Indian context. Also, the results are
mixed and do not provide any conclusive evidence on
market reaction to stock split. This study intends to
contribute by studying market reaction to stock split in
large and liquid stocks only. This is to eliminate any
possibility of abnormal returns (if any) associated with
stock split announcements being attributed to small
size and illiquidity of stocks as explained by
(Chakraborty, 2012) in her paper. If such abnormal
returns are not associated with stock split, it provides
an important result in the Indian context.
The paper is organized as follows. Section III provides
literature review, section IV describes data and
methodology, the results are discussed in section V
and conclusion is provided in section VI.
III. LITERATURE REVIEW
In theory, stock splits are mere cosmetic corporate
events and therefore, announcement of stock split
should not have any significant impact on market
returns of the firm. However, empirical evidence from
developed markets suggests that announcement of a
stock split leads to significant positive returns
surrounding announcement and ex-days of stock split.
Even if one believes that stock split carries some
information content about the future prospects,
according to semi strong form of efficient market
hypothesis, the entire positive abnormal return should
be reflected on such announcement itself and no
abnormal returns should be present surrounding ex-
day. However, as mentioned earlier, that is not the
case. Many hypotheses are presented to explain
p o s i t i v e a b n o r m a l r e t u r n s s u r r o u n d i n g
announcement and ex-date of stock split. Review of
literature from the developed markets with major
competing hypotheses is presented below, followed
by review of literature on studies on market reaction to
stock split from Indian markets.
Market Reaction to Stock Splits in Large and Liquid Stocks:Evidence from the Indian Stock Market
ISSN: 0971-1023 | NMIMS Management ReviewDouble Issue: Volume XXIII October-November 2013 University Day Special Issue January 2014
130 131
![Page 3: Market Reaction to Stock Splits in Largeand Liquid Stocks ... · Studies from India on market reaction to stock splits offer mixed results. (Gupta & Gupta, 2007) find ... hypothesis,](https://reader030.vdocuments.net/reader030/viewer/2022020412/5ad712b67f8b9a6b668c746d/html5/thumbnails/3.jpg)
Signalling hypothesis: Stock split is one of the ways to
give signal about the future growth of the company.
Evidence for positive abnormal return on
announcement day of stock split by several studies -
(Asquith, Healy, & Palepu, 1989), (Ikenberry, Rankine,
& Stice, 1996) provides evidence for signalling
hypothesis. Further, (Fama, Fisher, Jensen, & Roll,
1969), (Lakonishok & Lev, 1987) suggest that the
abnormal returns associated with announcement of
stock split is due to the fact that stock split is one of the
financial signals for higher dividends in future.
However, providing a sound conceptual framework for
explaining validity of this hypothesis has always been a
challenge and therefore, the researcher started
searching for a more convincing explanation to explain
the wealth effect associated with stock split
announcement.
Optimal trading range hypothesis: According to this
hypothesis, each stock market has a popular trading
range for stocks (i.e. it is unlikely to see a stock trading
at Rs. 50,000 per share in the Indian stock market!).
Stock splits are used as a tool by firms who find that
their stock price has moved way above the popular
trading range. Announcement of stock split is done
with an intention to bring the stock price back to the
normal trading range and thereby making it more
affordable for small investors to buy round lots of
shares. Marketability of the stock increases post-split,
which results in improved liquidity and positive
abnormal returns due to buying activity of deprived
wealth-constrained small investors who could not
afford buying the stock at the higher pre-split price.
((Lakonishok & Lev, 1987); (McNichols & Dravid,
1990)). If there is merit in this hypothesis, positive
price returns should be evident immediately on ex-day
and after that. Relevance of this hypothesis has come
down significantly in Indian markets in the last decade
as the lot size for stocks in the Indian market is one
share only.
While (Lakonishok & Lev, 1987) and (Han, 1995)
provided some empirical evidence on the existence of
an optimal trading range in the U.S., studies by
(Copeland, 1979) and (Conroy, Harris, & Benet, 1990)
find results contradicting optimum trading range
hypothesis. Copeland observes decrease in trading
activity after stock split.
Liquidity hypothesis
A related hypothesis that explains positive abnormal
returns post stock split is the liquidity hypothesis.
According to this hypothesis, the motivation of
management to bring the stock price back to the
popular trading range is to improve liquidity.
(Muscarella & Vetsuypens, 1996) show that liquidity
after stock split improves, results in wealth gains for
investors. Their findings support the model of (Amihud
& Mendelson, 1986), which predicts a positive relation
between equity value and liquidity. According to this
model, rational investors discount illiquid securities
heavier than liquid ones due to the higher transaction
costs and greater trading frictions they face. On the
other end, (Conroy, Harris, & Benet, 1990) show an
increased bid-ask spread after stock split
announcements. (Ferris, Hwang, & Sarin, 1995) report
reduction in depth post-split. These results show
reduction in liquidity rather than increase.
Small firm or neglected firms hypothesis: Stock split is
the way of catching attention of the market by a firm
which feels that they are undervalued in the market
due to negligence of market participants, which means
there is little known about a firm and its shares trade at
a discount. Thus, firms use the split to draw attention
of market participants and try to ensure that
information about the company is disseminated over a
larger number of market participants. This is more
relevant for small firms than large firms and that is one
of the reasons why they may go for stock split
according to (Arbel & Strebel, 1983), (Arbel &
Swanson, 1993), (Grinblatt, Masulis, & Titman, 1984),
(Wulff, 2002).
Market reaction to stock split has generated significant
interest among researchers in India and there are
several studies reporting market reaction to stock split
in the past few years. Presented below is a review of
some of the noteworthy studies in the Indian context
that provide mixed evidence of market reaction to
stock split.
(Mishra, 2007) reports negative wealth effect on stock
split announcement using stock split data of 1999 to
2005 from Indian markets and hence, rejects signalling
hypothesis. (Gupta & Gupta, 2007) report no positive
abnormal returns associated with announcement of
stock split but find evidence of positive wealth effect
on ex-day. It rejects trading range hypothesis as
majority of the stock splits are announced in stocks
which were trading at a low price already.
(Joshipura, 2009) finds positive abnormal returns both
on announcement as well as effective days but
observes that it does not sustain and reverses soon
after. (Ray, 2011) reports significant positive abnormal
return on announcement day of stock split and also
reports significant improvement in liquidity post-split.
(Chakraborty, 2012) also reports significant positive
return on the ex-split date and attributed such positive
reaction to small firm hypothesis and liquidity
hypothesis. However, the same study also reports
reversal of such profits in post-split period.
Thus, evidences from Indian stock markets on reaction
to stock split surrounding announcement and ex-date
are mixed. This study intends to add to the body of
literature by providing empirical evidence on market
reaction to stock split in large and liquid stocks and
thereby minimizing the possibility of any positive
abnormal return surrounding stock sp l i t
announcement and ex-date dominated by small and
illiquid firms as reported by (Chakraborty, 2012). In
that regard, it takes the work forward in the Indian
context and adds to the studies on wealth effect
associated with stock split announcements.
VI. DATA AND METHODOLOGY
The sample of the study comprises of constituents of
NIFTY and NIFTY Junior as of August 2012. These are
large and liquid stocks. Forty six stock splits have been
observed during January 2001 to August 2012 in the
sample stocks. The following criteria have been
applied to include a company in the sample.
1. Announcement and ex-dates are available for
stock splits of the company.
2. Adjusted closing price data for a period of 120 days
prior to stock split announcement date and up to
10 days post ex-split date are available for the
company going for stock split.
3. Stock split does not coincide with any other
corporate event that potentially contaminates the
results.
After applying the above criteria, the number of stock
splits available for analysis was 41. This is not a very
large sample; however, it is a highly relevant sample for
the focused study to capture market reaction to stock
splits in large and liquid stocks.
Standard event study pioneered by (Fama, Fisher,
Market Reaction to Stock Splits in Large and Liquid Stocks:Evidence from the Indian Stock Market
Market Reaction to Stock Splits in Large and Liquid Stocks:Evidence from the Indian Stock Market
ISSN: 0971-1023 | NMIMS Management ReviewDouble Issue: Volume XXIII October-November 2013 University Day Special Issue January 2014
ISSN: 0971-1023 | NMIMS Management ReviewDouble Issue: Volume XXIII October-November 2013 University Day Special Issue January 2014
132 133
![Page 4: Market Reaction to Stock Splits in Largeand Liquid Stocks ... · Studies from India on market reaction to stock splits offer mixed results. (Gupta & Gupta, 2007) find ... hypothesis,](https://reader030.vdocuments.net/reader030/viewer/2022020412/5ad712b67f8b9a6b668c746d/html5/thumbnails/4.jpg)
Signalling hypothesis: Stock split is one of the ways to
give signal about the future growth of the company.
Evidence for positive abnormal return on
announcement day of stock split by several studies -
(Asquith, Healy, & Palepu, 1989), (Ikenberry, Rankine,
& Stice, 1996) provides evidence for signalling
hypothesis. Further, (Fama, Fisher, Jensen, & Roll,
1969), (Lakonishok & Lev, 1987) suggest that the
abnormal returns associated with announcement of
stock split is due to the fact that stock split is one of the
financial signals for higher dividends in future.
However, providing a sound conceptual framework for
explaining validity of this hypothesis has always been a
challenge and therefore, the researcher started
searching for a more convincing explanation to explain
the wealth effect associated with stock split
announcement.
Optimal trading range hypothesis: According to this
hypothesis, each stock market has a popular trading
range for stocks (i.e. it is unlikely to see a stock trading
at Rs. 50,000 per share in the Indian stock market!).
Stock splits are used as a tool by firms who find that
their stock price has moved way above the popular
trading range. Announcement of stock split is done
with an intention to bring the stock price back to the
normal trading range and thereby making it more
affordable for small investors to buy round lots of
shares. Marketability of the stock increases post-split,
which results in improved liquidity and positive
abnormal returns due to buying activity of deprived
wealth-constrained small investors who could not
afford buying the stock at the higher pre-split price.
((Lakonishok & Lev, 1987); (McNichols & Dravid,
1990)). If there is merit in this hypothesis, positive
price returns should be evident immediately on ex-day
and after that. Relevance of this hypothesis has come
down significantly in Indian markets in the last decade
as the lot size for stocks in the Indian market is one
share only.
While (Lakonishok & Lev, 1987) and (Han, 1995)
provided some empirical evidence on the existence of
an optimal trading range in the U.S., studies by
(Copeland, 1979) and (Conroy, Harris, & Benet, 1990)
find results contradicting optimum trading range
hypothesis. Copeland observes decrease in trading
activity after stock split.
Liquidity hypothesis
A related hypothesis that explains positive abnormal
returns post stock split is the liquidity hypothesis.
According to this hypothesis, the motivation of
management to bring the stock price back to the
popular trading range is to improve liquidity.
(Muscarella & Vetsuypens, 1996) show that liquidity
after stock split improves, results in wealth gains for
investors. Their findings support the model of (Amihud
& Mendelson, 1986), which predicts a positive relation
between equity value and liquidity. According to this
model, rational investors discount illiquid securities
heavier than liquid ones due to the higher transaction
costs and greater trading frictions they face. On the
other end, (Conroy, Harris, & Benet, 1990) show an
increased bid-ask spread after stock split
announcements. (Ferris, Hwang, & Sarin, 1995) report
reduction in depth post-split. These results show
reduction in liquidity rather than increase.
Small firm or neglected firms hypothesis: Stock split is
the way of catching attention of the market by a firm
which feels that they are undervalued in the market
due to negligence of market participants, which means
there is little known about a firm and its shares trade at
a discount. Thus, firms use the split to draw attention
of market participants and try to ensure that
information about the company is disseminated over a
larger number of market participants. This is more
relevant for small firms than large firms and that is one
of the reasons why they may go for stock split
according to (Arbel & Strebel, 1983), (Arbel &
Swanson, 1993), (Grinblatt, Masulis, & Titman, 1984),
(Wulff, 2002).
Market reaction to stock split has generated significant
interest among researchers in India and there are
several studies reporting market reaction to stock split
in the past few years. Presented below is a review of
some of the noteworthy studies in the Indian context
that provide mixed evidence of market reaction to
stock split.
(Mishra, 2007) reports negative wealth effect on stock
split announcement using stock split data of 1999 to
2005 from Indian markets and hence, rejects signalling
hypothesis. (Gupta & Gupta, 2007) report no positive
abnormal returns associated with announcement of
stock split but find evidence of positive wealth effect
on ex-day. It rejects trading range hypothesis as
majority of the stock splits are announced in stocks
which were trading at a low price already.
(Joshipura, 2009) finds positive abnormal returns both
on announcement as well as effective days but
observes that it does not sustain and reverses soon
after. (Ray, 2011) reports significant positive abnormal
return on announcement day of stock split and also
reports significant improvement in liquidity post-split.
(Chakraborty, 2012) also reports significant positive
return on the ex-split date and attributed such positive
reaction to small firm hypothesis and liquidity
hypothesis. However, the same study also reports
reversal of such profits in post-split period.
Thus, evidences from Indian stock markets on reaction
to stock split surrounding announcement and ex-date
are mixed. This study intends to add to the body of
literature by providing empirical evidence on market
reaction to stock split in large and liquid stocks and
thereby minimizing the possibility of any positive
abnormal return surrounding stock sp l i t
announcement and ex-date dominated by small and
illiquid firms as reported by (Chakraborty, 2012). In
that regard, it takes the work forward in the Indian
context and adds to the studies on wealth effect
associated with stock split announcements.
VI. DATA AND METHODOLOGY
The sample of the study comprises of constituents of
NIFTY and NIFTY Junior as of August 2012. These are
large and liquid stocks. Forty six stock splits have been
observed during January 2001 to August 2012 in the
sample stocks. The following criteria have been
applied to include a company in the sample.
1. Announcement and ex-dates are available for
stock splits of the company.
2. Adjusted closing price data for a period of 120 days
prior to stock split announcement date and up to
10 days post ex-split date are available for the
company going for stock split.
3. Stock split does not coincide with any other
corporate event that potentially contaminates the
results.
After applying the above criteria, the number of stock
splits available for analysis was 41. This is not a very
large sample; however, it is a highly relevant sample for
the focused study to capture market reaction to stock
splits in large and liquid stocks.
Standard event study pioneered by (Fama, Fisher,
Market Reaction to Stock Splits in Large and Liquid Stocks:Evidence from the Indian Stock Market
Market Reaction to Stock Splits in Large and Liquid Stocks:Evidence from the Indian Stock Market
ISSN: 0971-1023 | NMIMS Management ReviewDouble Issue: Volume XXIII October-November 2013 University Day Special Issue January 2014
ISSN: 0971-1023 | NMIMS Management ReviewDouble Issue: Volume XXIII October-November 2013 University Day Special Issue January 2014
132 133
![Page 5: Market Reaction to Stock Splits in Largeand Liquid Stocks ... · Studies from India on market reaction to stock splits offer mixed results. (Gupta & Gupta, 2007) find ... hypothesis,](https://reader030.vdocuments.net/reader030/viewer/2022020412/5ad712b67f8b9a6b668c746d/html5/thumbnails/5.jpg)
Jensen, & Roll, 1969) has undergone several
refinements over the years thanks to the contributions
of many researchers.
(Saens & Sandoval, 2005) compares results of the
event study using three methods for return-generating
models (RGM) and three versions of parametric t-tests
as reported below and concluded that the
standardized t-test turns out to be the most reliable
alternative.
The following are the alternatives considered both for
return generating models and parametric t-test before
finalizing the return generating model and the model
for parametric t-test.
Return Generating Models:
1) OLS Market Model as used by this study where
abnormal return is return above the expected
return obtained from OLS values from the
estimation period. This model is comparatively
more sound.
2) Market-adjusted Returns Model where abnormal
return is return above the market index return.
3) Mean-Adjusted Returns Model where abnormal
return is return above the average return for the
estimation period.
Test Statistics alternatives:
1) The standardized t-test
Following Patell (1976) many authors have used
standardized abnormal returns (SAR), where each
abnormal security return is normalized by its
estimation period standard deviation before applying
t-test to check the significance of abnormal returns.
2) The cross sectional t-test
In this model, t-statistic is estimated by dividing the
average event period abnormal return by its
contemporaneous cross-sectional standard deviation.
This procedure, however, has some limitations. If the
variance differs across sample securities or security
abnormal performances are correlated across firms,
the test statistics is likely to be misspecified.
3) The portfolio t-test
For each day t, the cross-sectional average abnormal
return for sample securities is computed. The portfolio
t-test is the ratio of mean abnormal return on any
given day to its standard deviation during the event
window.
(Saens & Sandoval, 2005) conclude that symptoms of
non-normality in security returns and security
abnormal returns persist. and individual securities
and portfolio level, Methods based on the use of
parametric tests for samples of ten or more securities
are well specified to test the significance of abnormal
returns associated with an event such as stock split and
standardized t-test turns out to be the best alternative
amongst all the available alternatives.
Hence, this study uses OLS market model adjusted
abnormal returns and standardized t-test for the
purpose of calculating abnormal returns and test of
significance. The study uses AD-130 to AD-30 days of
estimation window and AD-10 to AD+10 and ED-10
and ED+10 days of effective window.
The first step in this process of determining price or
wealth effect is to calculate abnormal return. The
return on security i on day t is calculated as R = ln it
(P /P ).it i(t-1)
The market model is defined using estimation window
of AD-130 to AD-30 days, daily returns data on stock i
as dependent variable and market as independent
variable as follows.
Where,
R is the return on security i on day t; i,t
R is the return on a market index on day tm,t
Abnormal return for stock i on day t for each day in the
event window AD-10,
In order to draw overall inferences for the event of
interest, the abnormal return observations are
aggregated along two dimensions – through time and
across securities. The following measures of abnormal
performance are used:
1. Cumulative Abnormal Return (CAR): Cumulative
sum of stock i’s prediction error (abnormal
returns) over the window (T , T ).1 2
2. Mean Abnormal Return (MAR): An average of
abnormal returns across the N firms on a day t.
3. Mean Cumulative Abnormal Return (MCAR):
Average of the cumulative abnormal returns
across observations (firms); it is a measure of the
abnormal performance over the event period,
4. Testing for statistical significance
The test statistics are calculated using
standardized t-test ((Patell, 1976), (Brown &
Warner, 1980), (Brown & Warner, 1985)) and non-
parametric sign test. Standardized t-test uses
standardized abnormal return (SAR), where each
security abnormal return is normalized by its
estimation period standard deviation.
SAR = AR / σ(AR ), Where, σ(ARit) is standard it it it
deviation of abnormal returns of security i during
its estimation period.
A nonparametric sign test based on sign of abnormal
return is also employed. The hypothesis is abnormal
returns are independent across securities and that the
expected proportion of positive abnormal returns
under the null hypothesis is 0.5.
The test statistic is computed as
+where N is the sample size and N is the number of
cases where the abnormal return is positive. This test is
conducted to supplement parametric test.
V. Results And Discussion
Table-1 and Table-2 report Cross sectional mean
abnormal return (MAR) and mean cumulative
abnormal returns (MCAR) with corresponding t-
statistics values and z-values for non-parametric
sign test. Table-1 shows results for announcement
window, whereas Table-2 shows results for
effective window.
Market Reaction to Stock Splits in Large and Liquid Stocks:Evidence from the Indian Stock Market
Market Reaction to Stock Splits in Large and Liquid Stocks:Evidence from the Indian Stock Market
ISSN: 0971-1023 | NMIMS Management ReviewDouble Issue: Volume XXIII October-November 2013 University Day Special Issue January 2014
ISSN: 0971-1023 | NMIMS Management ReviewDouble Issue: Volume XXIII October-November 2013 University Day Special Issue January 2014
134 135
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Jensen, & Roll, 1969) has undergone several
refinements over the years thanks to the contributions
of many researchers.
(Saens & Sandoval, 2005) compares results of the
event study using three methods for return-generating
models (RGM) and three versions of parametric t-tests
as reported below and concluded that the
standardized t-test turns out to be the most reliable
alternative.
The following are the alternatives considered both for
return generating models and parametric t-test before
finalizing the return generating model and the model
for parametric t-test.
Return Generating Models:
1) OLS Market Model as used by this study where
abnormal return is return above the expected
return obtained from OLS values from the
estimation period. This model is comparatively
more sound.
2) Market-adjusted Returns Model where abnormal
return is return above the market index return.
3) Mean-Adjusted Returns Model where abnormal
return is return above the average return for the
estimation period.
Test Statistics alternatives:
1) The standardized t-test
Following Patell (1976) many authors have used
standardized abnormal returns (SAR), where each
abnormal security return is normalized by its
estimation period standard deviation before applying
t-test to check the significance of abnormal returns.
2) The cross sectional t-test
In this model, t-statistic is estimated by dividing the
average event period abnormal return by its
contemporaneous cross-sectional standard deviation.
This procedure, however, has some limitations. If the
variance differs across sample securities or security
abnormal performances are correlated across firms,
the test statistics is likely to be misspecified.
3) The portfolio t-test
For each day t, the cross-sectional average abnormal
return for sample securities is computed. The portfolio
t-test is the ratio of mean abnormal return on any
given day to its standard deviation during the event
window.
(Saens & Sandoval, 2005) conclude that symptoms of
non-normality in security returns and security
abnormal returns persist. and individual securities
and portfolio level, Methods based on the use of
parametric tests for samples of ten or more securities
are well specified to test the significance of abnormal
returns associated with an event such as stock split and
standardized t-test turns out to be the best alternative
amongst all the available alternatives.
Hence, this study uses OLS market model adjusted
abnormal returns and standardized t-test for the
purpose of calculating abnormal returns and test of
significance. The study uses AD-130 to AD-30 days of
estimation window and AD-10 to AD+10 and ED-10
and ED+10 days of effective window.
The first step in this process of determining price or
wealth effect is to calculate abnormal return. The
return on security i on day t is calculated as R = ln it
(P /P ).it i(t-1)
The market model is defined using estimation window
of AD-130 to AD-30 days, daily returns data on stock i
as dependent variable and market as independent
variable as follows.
Where,
R is the return on security i on day t; i,t
R is the return on a market index on day tm,t
Abnormal return for stock i on day t for each day in the
event window AD-10,
In order to draw overall inferences for the event of
interest, the abnormal return observations are
aggregated along two dimensions – through time and
across securities. The following measures of abnormal
performance are used:
1. Cumulative Abnormal Return (CAR): Cumulative
sum of stock i’s prediction error (abnormal
returns) over the window (T , T ).1 2
2. Mean Abnormal Return (MAR): An average of
abnormal returns across the N firms on a day t.
3. Mean Cumulative Abnormal Return (MCAR):
Average of the cumulative abnormal returns
across observations (firms); it is a measure of the
abnormal performance over the event period,
4. Testing for statistical significance
The test statistics are calculated using
standardized t-test ((Patell, 1976), (Brown &
Warner, 1980), (Brown & Warner, 1985)) and non-
parametric sign test. Standardized t-test uses
standardized abnormal return (SAR), where each
security abnormal return is normalized by its
estimation period standard deviation.
SAR = AR / σ(AR ), Where, σ(ARit) is standard it it it
deviation of abnormal returns of security i during
its estimation period.
A nonparametric sign test based on sign of abnormal
return is also employed. The hypothesis is abnormal
returns are independent across securities and that the
expected proportion of positive abnormal returns
under the null hypothesis is 0.5.
The test statistic is computed as
+where N is the sample size and N is the number of
cases where the abnormal return is positive. This test is
conducted to supplement parametric test.
V. Results And Discussion
Table-1 and Table-2 report Cross sectional mean
abnormal return (MAR) and mean cumulative
abnormal returns (MCAR) with corresponding t-
statistics values and z-values for non-parametric
sign test. Table-1 shows results for announcement
window, whereas Table-2 shows results for
effective window.
Market Reaction to Stock Splits in Large and Liquid Stocks:Evidence from the Indian Stock Market
Market Reaction to Stock Splits in Large and Liquid Stocks:Evidence from the Indian Stock Market
ISSN: 0971-1023 | NMIMS Management ReviewDouble Issue: Volume XXIII October-November 2013 University Day Special Issue January 2014
ISSN: 0971-1023 | NMIMS Management ReviewDouble Issue: Volume XXIII October-November 2013 University Day Special Issue January 2014
134 135
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Table 1: MAR, MCAR and test statistics in AD window for entire sample, (N=41)
As we can see from the table-1, MAR for the
announcement day is 0.75% but it is statistically not
significant at 5% level. In addition, only 23 out of 41
stock splits report positive abnormal returns on
announcement day at that is statistically not
significant at 5% level with corresponding z-statistic of
0.78 for generalized sign test. It clearly suggests that
there is no significant market reaction to stock split
announcement associated with announcement of the
stock split in large and liquid stocks. MCAR also leads to
the same interpretation. MCAR on announcement day
(it represents cross sectional cumulative abnormal
returns between AD-10 to AD) is 1.54% with
corresponding t-statistics of 1.35 and that is
statistically not significant at 5% level. Non-parametric
sign test also indicates the same. 24 out of 41 stock
splits having MCAR positive on announcement day
with corresponding z-statistics for the generalized sign
test of 1.03 is also not significant. Moreover, it can also
be observed that MCAR is statistically not significant
during the entire announcement window (AD-10 to
AD+10) and that suggests that there is no market
reaction to stock split announcement and stock splits
do not contain any information content whatsoever.
Table 2: MAR, MCAR and test statistics in ED window for the entire sample, N(41)
Market Reaction to Stock Splits in Large and Liquid Stocks:Evidence from the Indian Stock Market
Market Reaction to Stock Splits in Large and Liquid Stocks:Evidence from the Indian Stock Market
ISSN: 0971-1023 | NMIMS Management ReviewDouble Issue: Volume XXIII October-November 2013 University Day Special Issue January 2014
ISSN: 0971-1023 | NMIMS Management ReviewDouble Issue: Volume XXIII October-November 2013 University Day Special Issue January 2014
136 137
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Table 1: MAR, MCAR and test statistics in AD window for entire sample, (N=41)
As we can see from the table-1, MAR for the
announcement day is 0.75% but it is statistically not
significant at 5% level. In addition, only 23 out of 41
stock splits report positive abnormal returns on
announcement day at that is statistically not
significant at 5% level with corresponding z-statistic of
0.78 for generalized sign test. It clearly suggests that
there is no significant market reaction to stock split
announcement associated with announcement of the
stock split in large and liquid stocks. MCAR also leads to
the same interpretation. MCAR on announcement day
(it represents cross sectional cumulative abnormal
returns between AD-10 to AD) is 1.54% with
corresponding t-statistics of 1.35 and that is
statistically not significant at 5% level. Non-parametric
sign test also indicates the same. 24 out of 41 stock
splits having MCAR positive on announcement day
with corresponding z-statistics for the generalized sign
test of 1.03 is also not significant. Moreover, it can also
be observed that MCAR is statistically not significant
during the entire announcement window (AD-10 to
AD+10) and that suggests that there is no market
reaction to stock split announcement and stock splits
do not contain any information content whatsoever.
Table 2: MAR, MCAR and test statistics in ED window for the entire sample, N(41)
Market Reaction to Stock Splits in Large and Liquid Stocks:Evidence from the Indian Stock Market
Market Reaction to Stock Splits in Large and Liquid Stocks:Evidence from the Indian Stock Market
ISSN: 0971-1023 | NMIMS Management ReviewDouble Issue: Volume XXIII October-November 2013 University Day Special Issue January 2014
ISSN: 0971-1023 | NMIMS Management ReviewDouble Issue: Volume XXIII October-November 2013 University Day Special Issue January 2014
136 137
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Table-2 shows that MAR on ex-day is 0.77% with
corresponding t-statistics of 2.97 that is significant at
5% level and 26 out of 41 stock splits have seen positive
abnormal returns on effective day. Z-statistics for
generalized sign test is 1.72 that is statistically
significant at 5% for one tailed test. However, value of
MCAR on the ex-split day on effective window
(represents cross sectional abnormal returns from ED-
10 to ED) is 1.51% with corresponding t-statistics of
1.15 and that is statistically not significant. Only 23 out
of 41 stock splits report positive MCAR in effective
window as on ED with corresponding z-statistics of
0.78 which is statistically not significant. What this
means is that while there is some evidence for
significant positive abnormal return on ex-date of
stock split, there is nothing surrounding it. In fact,
MCAR at the end of the event window on ED+10 day is -
2.86% and is statistically significant at 5% level on one
tailed test. Out of 41, 27 splits end the effective
window with negative MCAR and it is statistically
significant with z-statistics of -2.03 for generalized sign
test. The interpretation here is that there is some
evidence of positive abnormal return on ex-date of
stock splits but that does not result in any sustainable
long term positive effect. In fact, it immediately
reverses. A possible explanation to such immediate
reversal is provided in the conclusion.
VI. Conclusion
The results of the study lead to the conclusion that
there is no evidence for any positive impact of stock
splits on their announcement in a sample of large and
liquid stocks. Therefore, there is evidence against
signalling hypothesis as well as neglected firm
hypothesis. There is evidence of positive abnormal
return on ex-split date but it reverses soon after. And
therefore, there is also evidence against liquidity or
trading range hypothesis. Our findings are consistent
with (Gupta & Gupta, 2007) who find no positive effect
of stock split announcement but report positive return
on ex-split date. Our results also lend support to
results of (Chakraborty, 2012) who reports positive
abnormal returns on ex-split date which reverses soon
after. The only difference is that she attributed
presence of such positive abnormal returns to small
and illiquid stocks in the sample; this study concludes
that it is true for stock split announcement in large and
liquid stocks as well. The possible explanation is that
on the ex-date of stock split, many small wealth-
constrained/deprived investors put demand for stocks
that have just undergone split and therefore have
become more affordable in terms of unit price and that
leads to positive abnormal returns only to realize later
that there is no positive impact of stock split on future
prospects of the company and hence, there is no way
to earn superior return by buying stocks that have just
gone ex-split.
• Amihud, Y., & Mendelson, H. (1986). Asset pricing and the bid-ask spread. Journal of Financial Economics, 17,
223-249.
• Arbel, A., & Strebel, P. J. (1983, Winter). Pay Attention to Neglected Firms. Journal of Portfolio Management, 9,
37-42.
• Arbel, A., & Swanson, G. (1993). The role of information in stock split announcement effects. Quarterly Journal
of Business and Economics, 32(2), 14-25.
• Asquith, P. K., Healy, P., & Palepu. (1989). Earnings and stock splits. The Accounting Review, 64, 387-403.
• Brown, S. J., & Warner, B. J. (1980). Measuring Security Price Performance. Journal of Financial Economics,
8(3), 205-258.
• Brown, S. J., & Warner, B. J. (1985). Using Daily Stock Returns: The Case of Event Studies. Journal of Financial
Economics, 14(1), 3-31.
• Chakraborty, M. (2012). The Equity Market around the Ex-Split Date: Evidence from India. Vikalpa, 37(1), 57-
68.
• Conroy, R. M., Harris, R. S., & Benet, B. A. (1990, September). The effect of stock splits on bid-ask spreads.
Journal of Finance, 45(4), 1285-1295.
• Copeland, T. E. (1979). Liquidity changes following stock splits. Journal of Finance, 37, 115-142.
• Fama, E. F., Fisher, L., Jensen, M. C., & Roll, R. (1969). The Adjustment of Stock Prices to New Information.
International Economic Review, Vol. 10, 1-21.
• Ferris, S. P., Hwang, C.-Y., & Sarin, A. (1995). A microstructure Examination of Trading Activity Following Stock
Splits. Review of Quantitative Finance and Accounting, 14, 27-41.
• Grinblatt, M. S., Masulis, R. W., & Titman, S. (1984). The valuation effect of stock splits and stock dividends.
Journal of Financial Economics, 13, 461-490.
• Gupta, A. P., & Gupta, O. P. (2007, January). Market Reaction to Stock Market Splits: Evidence from India. The
ICFAI Journal of Applied Finance, 13(1), 6-12.
• Han, K. (1995). The effect of reverse splits on the liquidity of the stock. Journal of Financial and Quantitative
Analysis, 30(1), 159-169.
• Ikenberry, Rankine, & Stice. (1996). What do stock splits really signal? Journal of Financial and Quantitative
analysis, 31, 357-375.
• Joshipura, M. (2009). Price and Liquidity Effects of Stock Split: Empirical Evidence from Indian Stock Market.
Indian Journal of Finance, 3(10).
• Lakonishok, J., & Lev, B. (1987). Stock splits and stock dividends: Why, who and when. Journal of Finance, 913-
932.
• McNichols, M., & Dravid, A. (1990). Stock Dividends, Stock Splits and Signaling. Journal of Finance, 45, 857-
879.
• Mishra, A. K. (2007). The Market Reaction to Stock Splits-Evidence from India. International Journal of
Theoretical and Applied Finance, 10(2), 251-271.
References
Market Reaction to Stock Splits in Large and Liquid Stocks:Evidence from the Indian Stock Market
Market Reaction to Stock Splits in Large and Liquid Stocks:Evidence from the Indian Stock Market
ISSN: 0971-1023 | NMIMS Management ReviewDouble Issue: Volume XXIII October-November 2013 University Day Special Issue January 2014
ISSN: 0971-1023 | NMIMS Management ReviewDouble Issue: Volume XXIII October-November 2013 University Day Special Issue January 2014
138 139
![Page 10: Market Reaction to Stock Splits in Largeand Liquid Stocks ... · Studies from India on market reaction to stock splits offer mixed results. (Gupta & Gupta, 2007) find ... hypothesis,](https://reader030.vdocuments.net/reader030/viewer/2022020412/5ad712b67f8b9a6b668c746d/html5/thumbnails/10.jpg)
Table-2 shows that MAR on ex-day is 0.77% with
corresponding t-statistics of 2.97 that is significant at
5% level and 26 out of 41 stock splits have seen positive
abnormal returns on effective day. Z-statistics for
generalized sign test is 1.72 that is statistically
significant at 5% for one tailed test. However, value of
MCAR on the ex-split day on effective window
(represents cross sectional abnormal returns from ED-
10 to ED) is 1.51% with corresponding t-statistics of
1.15 and that is statistically not significant. Only 23 out
of 41 stock splits report positive MCAR in effective
window as on ED with corresponding z-statistics of
0.78 which is statistically not significant. What this
means is that while there is some evidence for
significant positive abnormal return on ex-date of
stock split, there is nothing surrounding it. In fact,
MCAR at the end of the event window on ED+10 day is -
2.86% and is statistically significant at 5% level on one
tailed test. Out of 41, 27 splits end the effective
window with negative MCAR and it is statistically
significant with z-statistics of -2.03 for generalized sign
test. The interpretation here is that there is some
evidence of positive abnormal return on ex-date of
stock splits but that does not result in any sustainable
long term positive effect. In fact, it immediately
reverses. A possible explanation to such immediate
reversal is provided in the conclusion.
VI. Conclusion
The results of the study lead to the conclusion that
there is no evidence for any positive impact of stock
splits on their announcement in a sample of large and
liquid stocks. Therefore, there is evidence against
signalling hypothesis as well as neglected firm
hypothesis. There is evidence of positive abnormal
return on ex-split date but it reverses soon after. And
therefore, there is also evidence against liquidity or
trading range hypothesis. Our findings are consistent
with (Gupta & Gupta, 2007) who find no positive effect
of stock split announcement but report positive return
on ex-split date. Our results also lend support to
results of (Chakraborty, 2012) who reports positive
abnormal returns on ex-split date which reverses soon
after. The only difference is that she attributed
presence of such positive abnormal returns to small
and illiquid stocks in the sample; this study concludes
that it is true for stock split announcement in large and
liquid stocks as well. The possible explanation is that
on the ex-date of stock split, many small wealth-
constrained/deprived investors put demand for stocks
that have just undergone split and therefore have
become more affordable in terms of unit price and that
leads to positive abnormal returns only to realize later
that there is no positive impact of stock split on future
prospects of the company and hence, there is no way
to earn superior return by buying stocks that have just
gone ex-split.
• Amihud, Y., & Mendelson, H. (1986). Asset pricing and the bid-ask spread. Journal of Financial Economics, 17,
223-249.
• Arbel, A., & Strebel, P. J. (1983, Winter). Pay Attention to Neglected Firms. Journal of Portfolio Management, 9,
37-42.
• Arbel, A., & Swanson, G. (1993). The role of information in stock split announcement effects. Quarterly Journal
of Business and Economics, 32(2), 14-25.
• Asquith, P. K., Healy, P., & Palepu. (1989). Earnings and stock splits. The Accounting Review, 64, 387-403.
• Brown, S. J., & Warner, B. J. (1980). Measuring Security Price Performance. Journal of Financial Economics,
8(3), 205-258.
• Brown, S. J., & Warner, B. J. (1985). Using Daily Stock Returns: The Case of Event Studies. Journal of Financial
Economics, 14(1), 3-31.
• Chakraborty, M. (2012). The Equity Market around the Ex-Split Date: Evidence from India. Vikalpa, 37(1), 57-
68.
• Conroy, R. M., Harris, R. S., & Benet, B. A. (1990, September). The effect of stock splits on bid-ask spreads.
Journal of Finance, 45(4), 1285-1295.
• Copeland, T. E. (1979). Liquidity changes following stock splits. Journal of Finance, 37, 115-142.
• Fama, E. F., Fisher, L., Jensen, M. C., & Roll, R. (1969). The Adjustment of Stock Prices to New Information.
International Economic Review, Vol. 10, 1-21.
• Ferris, S. P., Hwang, C.-Y., & Sarin, A. (1995). A microstructure Examination of Trading Activity Following Stock
Splits. Review of Quantitative Finance and Accounting, 14, 27-41.
• Grinblatt, M. S., Masulis, R. W., & Titman, S. (1984). The valuation effect of stock splits and stock dividends.
Journal of Financial Economics, 13, 461-490.
• Gupta, A. P., & Gupta, O. P. (2007, January). Market Reaction to Stock Market Splits: Evidence from India. The
ICFAI Journal of Applied Finance, 13(1), 6-12.
• Han, K. (1995). The effect of reverse splits on the liquidity of the stock. Journal of Financial and Quantitative
Analysis, 30(1), 159-169.
• Ikenberry, Rankine, & Stice. (1996). What do stock splits really signal? Journal of Financial and Quantitative
analysis, 31, 357-375.
• Joshipura, M. (2009). Price and Liquidity Effects of Stock Split: Empirical Evidence from Indian Stock Market.
Indian Journal of Finance, 3(10).
• Lakonishok, J., & Lev, B. (1987). Stock splits and stock dividends: Why, who and when. Journal of Finance, 913-
932.
• McNichols, M., & Dravid, A. (1990). Stock Dividends, Stock Splits and Signaling. Journal of Finance, 45, 857-
879.
• Mishra, A. K. (2007). The Market Reaction to Stock Splits-Evidence from India. International Journal of
Theoretical and Applied Finance, 10(2), 251-271.
References
Market Reaction to Stock Splits in Large and Liquid Stocks:Evidence from the Indian Stock Market
Market Reaction to Stock Splits in Large and Liquid Stocks:Evidence from the Indian Stock Market
ISSN: 0971-1023 | NMIMS Management ReviewDouble Issue: Volume XXIII October-November 2013 University Day Special Issue January 2014
ISSN: 0971-1023 | NMIMS Management ReviewDouble Issue: Volume XXIII October-November 2013 University Day Special Issue January 2014
138 139
![Page 11: Market Reaction to Stock Splits in Largeand Liquid Stocks ... · Studies from India on market reaction to stock splits offer mixed results. (Gupta & Gupta, 2007) find ... hypothesis,](https://reader030.vdocuments.net/reader030/viewer/2022020412/5ad712b67f8b9a6b668c746d/html5/thumbnails/11.jpg)
•
Journal of Financial Economics, 42, 3-26.
• Patell, J. M. (1976). Corporate Forecast of Earnings per Share and Stock Price Behaviour. Journal of Accounting
Research, 14, 246-276.
• Ray, K. K. (2011, January). Market Reaction to Bonus Issues and Stock Splits in India: An Empirical Study. IUP
Journal of Applied Finance, 17(1), 56-69.
• Saens, R., & Sandoval, E. (2005). Measuring Security Price Performance Using Chilean Daily Stock Returns: The
Event Study Method. Cuadenos De Economia, 42, 307-328.
• Wulff, C. (2002, July). The Market Reaction to Stock Splits - Evidence from Germany. Schmalenbach Business
Review, 54, 270 – 297.
Muscarella, C. J., & Vetsuypens, M. R. (1996). Stock splits: Signaling or liquidity? The case of ADR solo splits.
Nehal Joshipura is an Assistant Professor in Finance at Durgadevi Saraf Institute of Management Studies,
Mumbai. She earned MBA in Finance from Bhavnagar University and MCA from Gujarat University. She is
currently pursuing Ph.D. on “Exploring risk anomaly in the Indian stock market: The test of market
efficiency.” She has nearly a decade long experience in industry and academia. She was with Alliance
University, Bangalore in her last assignment. She teaches courses in the area of portfolio management and
corporate finance. She has published a number of papers in refereed management journals. In addition, she
has presented papers at national and international conferences. Her research interests lie in market
efficiency and portfolio theory. She can be reached at [email protected]
Market Reaction to Stock Splits in Large and Liquid Stocks:Evidence from the Indian Stock Market
ISSN: 0971-1023 | NMIMS Management ReviewDouble Issue: Volume XXIII October-November 2013 University Day Special Issue January 2014
140