ABOUT THE AUTHOR

Donald R. Van Deventer, Ph.D.

Don founded Kamakura Corporation in April 1990 and currently serves as Co-Chair, Center for Applied Quantitative Finance, Risk Research and Quantitative Solutions at SAS. Don’s focus at SAS is quantitative finance, credit risk, asset and liability management, and portfolio management for the most sophisticated financial services firms in the world.

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Collusion and CDS Dealer Volume

01/04/2012 11:18 AM

We first looked at the trading volume in single name corporate and sovereign credit default swaps in three blog entries in May and June 2010, immediately after the Depository Trust and Clearing Corporation began releasing volume information.  In today’s blog, the first of four in the series, we look at weekly data since the week ended July 16, 2010 to measure how much of existing single name CDS trading is the exchange of positions among a small group of dealers and how much is true “end user” trading.

We first looked at single name CDS trading volume in this series of three blog entries:

van Deventer, Donald R. “Sovereign Credit Default Swaps and Lessons from Used Car Dealers,” Kamakura blog, www.kamakuraco.com, May 11, 2010. Redistributed on www.riskcenter.com on May 13, 2010.

van Deventer, Donald R. “Corporate Credit Default Swaps and
Non-Dealer Trading Volume,” Kamakura blog, www.kamakuraco.com, May 13, 2010.  Redistributed on www.riskcenter.com on May 16, 2010.

van Deventer, Donald R. “Kamakura Blog: Daily Trading Volumes in Credit Default Swaps,” Kamakura blog, www.kamakuraco.com, June 2, 2010.  Redistributed on www.riskcenter.com on June 3, 2010.

In this blog, we analyze additional data from the Depository Trust and Clearing Corporation and made available from www.dtcc.com at this link (please note consent is necessary to access the data):

http://www.dtcc.com/products/consent.php?id=tiwd/products/derivserv/data/index.php

The most recent explanation of the data provided by the DTCC is available here:

http://www.dtcc.com/downloads/products/derivserv/tiw_data_explanation.pdf

In today’s blog, we are interested in how much of the “live trades” in the CDS trade warehouse represent transactions between two dealers and how much involve non-dealer end users on at least one side of the trade.  The DTCC trade warehouse explanation above does not identify the dealers supplying data to DTCC at the current time.  At the time of our June 2, 2010 blog, however, DTCC listed the 14 “families” of contributing dealers as follows:

  • Bank of America Merrill Lynch
  • Barclays
  • BNP Paribas
  • Citibank
  • Credit Suisse
  • Deutsche Bank
  • Goldman Sachs
  • HSBC
  • JPMorgan
  • Morgan Stanley
  • Nomura
  • Royal Bank of Scotland
  • UBS
  • UniCredit

We presume the list of contributing dealers is somewhat longer than it was in 2010, but it is not clear that the highly concentrated nature of CDS trading has changed during that time interval.  We analyze that issue in a separate blog.

Table 1 is released weekly by the DTCC.  It lists the number of contracts and notional values that are still “live” in the trade warehouse at that time. DTCC is careful to note that the data may not be complete if the inclusion of a particular trade would identify the parties to the transaction.  We report here the composition of trades by four categories of “seller buyer” combinations in the trading of single name credit default swaps:

Combination of Seller and Buyer Seller  Buyer
Dealer Dealer Dealer  Dealer
Dealer Non-dealer Dealer  Non-Dealer
Non-dealer Dealer Non-dealer  Dealer
Non-dealer Non-dealer Non-dealer  Non-dealer

Based on the number of trades reported by DTCC, the breakdown among these four buyer-seller combinations are as follows:

In percentage terms, the dealer-dealer share of single name CDS contracts traded has ranged from 79.86% to 88.47% with an average of 81.68%. Trades between non-dealer parties were only 0.12% of total trades on average:

The results are similar if one looks at the dealer-dealer share of trades by notional principal.  Dealer-dealer trades ranged from 73.40% to 88.36% of the total, with an average of 76.28%.  Trades involving two non-dealers were only 0.16% of total notional principal traded:

Well-intentioned academics and journalists, plus many politicians, well-intentioned or not, discuss trading levels on single name credit default swaps as if such numbers were gifts from God.  Instead, we see that roughly 76-82% of all single name credit default swaps are trades between Bill Smith at Goldman Sachs and John Smith at JPMorgan or other dealer firms.  As a sophisticated observer of financial markets, should an investor take these traded prices as meaningful information on the credit worthiness of the underlying reference name? Is it safe to assume that Bill Smith and John Smith do not talk to each other?

Let’s look at examples from other markets in which the same dealer firms have participated for many decades:

  1. London interbank offered rate market.  This lawsuit by Charles Schwab accuses 12 firms of colluding to manipulate libor. Nine of the 12 firms are also dealers listed by DTCC in single name credit default swaps:

    http://www.lieffcabraser.com/media/pnc/4/media.904.pdf

  2. Municipal bond market. This recent article on Reuters summarizes the repeated legal violations stemming from collusion in the market for municipal bonds in the United States.  6 of the 8 firms named are also dealers in single name CDS that were listed by DTCC in 2010:

    http://blogs.reuters.com/muniland/2012/01/03/munilands-serial-offenders/

Given that the majority of dealers listed by DTCC in single name credit default swaps are, in the words of the Reuters article, “serial offenders,” a sophisticated observer should assume that both traded CDS spreads and quoted spreads are highly likely to have been affected by collusion. Any other assumption could be hazardous to your wallet.

Donald R. van Deventer
Kamakura Corporation
Honolulu, January 4, 2012

 

ABOUT THE AUTHOR

Donald R. Van Deventer, Ph.D.

Don founded Kamakura Corporation in April 1990 and currently serves as Co-Chair, Center for Applied Quantitative Finance, Risk Research and Quantitative Solutions at SAS. Don’s focus at SAS is quantitative finance, credit risk, asset and liability management, and portfolio management for the most sophisticated financial services firms in the world.

Read More

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