cds market liquidity how liquid is the cds market by adreas fulop and laurence lescourret cds...
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CDS Market Liquidity
How Liquid is the CDS Marketby Adreas Fulop and Laurence Lescourret
CDS Liquidity by Ren-Raw Cehn, Franck Fabozzi and Ronald
Sverdlove
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Objectives
• CDS premiums contain credit risk AND liquidity problems => CDS premiums cannot be used as pure credit risk measures
• Analysis of CDS market liquidity for a better understanding of volatility and transaction costs on CDS market (FL2007) or for a better understanding of bond spreads (CFS2007)
• Hot topic these days• Can we get some insight concerning recent
credit event ?
![Page 3: CDS Market Liquidity How Liquid is the CDS Market by Adreas Fulop and Laurence Lescourret CDS Liquidity by Ren-Raw Cehn, Franck Fabozzi and Ronald Sverdlove](https://reader035.vdocuments.net/reader035/viewer/2022062619/55190e3855034638428b4808/html5/thumbnails/3.jpg)
Objectives
• CDS premiums contain credit risk AND liquidity problems => CDS premiums cannot be used as pure credit risk measures
• Analysis of CDS market liquidity for a better understanding of volatility and transaction costs on CDS market (FL2007) or for a better understanding of bond spreads (CFS2007)
• Hot topic these days• Can we get some insight concerning recent
credit event ?
![Page 4: CDS Market Liquidity How Liquid is the CDS Market by Adreas Fulop and Laurence Lescourret CDS Liquidity by Ren-Raw Cehn, Franck Fabozzi and Ronald Sverdlove](https://reader035.vdocuments.net/reader035/viewer/2022062619/55190e3855034638428b4808/html5/thumbnails/4.jpg)
Objectives
• CDS premiums contain credit risk AND liquidity problems => CDS premiums cannot be used as pure credit risk measures
• Analysis of CDS market liquidity for a better understanding of volatility and transaction costs on CDS market (FL2007) or for a better understanding of bond spreads (CFS2007)
• Hot topic these days• Can we get some insight concerning recent
credit event ?
![Page 5: CDS Market Liquidity How Liquid is the CDS Market by Adreas Fulop and Laurence Lescourret CDS Liquidity by Ren-Raw Cehn, Franck Fabozzi and Ronald Sverdlove](https://reader035.vdocuments.net/reader035/viewer/2022062619/55190e3855034638428b4808/html5/thumbnails/5.jpg)
Société Générale and BNP-Paribas
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Bear Stearns
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Models
• FL (2007)Microstructure model
of efficient price and quotes
Hasbrouck (2003)Analysis of intraday
volatility and transaction cost
Mostly descriptive
• CFS (2007)Reduced-form model
of credit risk with liquidity factors for the bonds and CDS markets
Bulher and Trapp (2006)
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Data
• FL (2007)Intraday CDS bid and ask
quotes + trades from GFI stamped down to a minute
3 US + 1 European entities January 2004 – December 2006
Each day = 5 time periods5:30-7:30, 7:30-9:30,
9:30-14:30, 14:30-16:30 and 16:30-5:30 NY GMT
• CFS (2007)Intraday CDS bid and
ask quotes + trades from Creditex
February 2000 – April 2003
+ information about the companies from FISD data set
+ bond information from TRACE data set reduced to one observation per day
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Data problems
• FL (2007)
Sample : take the last bid and ask (every minute)
Remove the joint observation with negative or null bid-ask spread
• CFS (2007)Remove the repeating
entries and bad data points
Interpolate bid and ask to end up with joint bid and ask observations
Remove the observation with negative or null bid-ask spread
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Data problems
• FL (2007)
Sample : take the last bid and ask (every minute)
Remove the joint observation with negative or null bid-ask spread
• CFS (2007)Remove the repeating
entries and bad data points
Interpolate bid and ask to end up with joint bid and ask observations
Remove the observation with negative or null bid-ask spread
Is there such corrections ?
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Data problems
• FL (2007)
Sample : take the last bid and ask (every minute)
Remove the joint observation with negative or null bid-ask spread
• CFS (2007)Remove the repeating
entries and bad data points
Interpolate bid and ask to end up with joint bid and ask observations
Remove the observation with negative or null bid-ask spread
![Page 12: CDS Market Liquidity How Liquid is the CDS Market by Adreas Fulop and Laurence Lescourret CDS Liquidity by Ren-Raw Cehn, Franck Fabozzi and Ronald Sverdlove](https://reader035.vdocuments.net/reader035/viewer/2022062619/55190e3855034638428b4808/html5/thumbnails/12.jpg)
Data problems
• FL (2007)
Sample : take the last bid and ask (every minute)
Remove the joint observation with negative or null bid-ask spread
• CFS (2007)Remove the repeating
entries and bad data points
Interpolate bid and ask to end up with joint bid and ask observations
Remove the observation with negative or null bid-ask spreadHow often that happens ?
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Model and Estimation
• FL (2007)Hasbrouck (2003) model for efficient price
mt=mt-1+qt-jj+ut
Here efficient log spreadmi
=mi-1+mi-imi-1
+f(i-1,i) (ui+NiZi)
Then A=M+C, where C is the cost of market making
Filtering + MC EM algorithm to account for time varying volatility, jumps and data errors
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Model and Estimation
• CFS (2007)Estimation of hazard rate and liquidity
factor based on mid-CDS quotes and ask CDS quotes.
Fixed rate corporate bond pricing formula with or without liquidity impact => yield to maturity
Estimation of a one-factor model for liquidity
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Results
• FL (2007)Lost in the tables and
graphs, missing explanations and interpretations
(ex: J-shaped pattern for volatility parameter table 3, no comment fig 1-14, no title fig 7-10)
• CFS (2007)Counterintuitive
results: Fig. 11 as mentioned by the authors.
The relations described do not show (ex: increasing a with rating Fig 12), we do not have standard deviations.
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FL (2007)
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FL (2007)J-Shaped pattern
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FL (2007)J-Shaped pattern
Picks up during off hours
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CFS (2007)
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CFS (2007)
Increasing in rating for the industrial sector
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CFS (2007)
Increasing in rating for the industrial sector
Increasing in rating decreasing in rating for CORP, flat for FI
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CFS (2007)Hazard Liquidity
No relation
The larger the firm the more liquid the premium
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Results• FL (2007)Bid ask spreads and
roundtrip cost are not lower than their counterparts in the corporate bond markets
Framework allows for data errors, price discreteness and jumps
Volatility is low and transaction costs are higher when trading is thinner.
• CFS (2007)Large bid-ask spreads in
CDS quotes can affect the estimation of the liqui-dity spreads of bonds
Liquidity risk is idiosyncratic
Liquidity is positively related to credit risk
Liquidity premium is uncorrelated to credit risk
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Comments
• Very interesting and still a lot to do to understand CDS markets.
• Data are a real problems. • Not sure long sample can be used.
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Comments
FL (2007)• Microstructure
model + filtering and MC EM estimation is interesting.
• Stable period. Can serve as a benchmark to analyze the recent evolution.
CFS (2007)• Data treatment in
not neutral.• Since liquidity is
increasing, could be more interesting to do the same analysis in 2003, 2004, …,2007
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SEARS
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Last comments
• Normal liquidity ?• Cross effects ?• Link with daily liquidity ?
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Daily Data