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| Capital Structure Arbitrage: Model choice and volatility calibration by Claus Bajlum of Danmarks Nationalbank & Copenhagen Business School, and May 10, 2007 Abstract: When identifying relative value opportunities across credit and equity markets, the arbitrageur faces two major problems, namely positions based on model misspecification and mismeasured inputs. Using credit default swap data, this paper addresses both concerns in a convergence-type trading strategy. In spite of differences in assumptions governing default and calibration, we find the exact structural model linking the markets second to timely key inputs. Studying an equally-weighted portfolio of all relative value positions, the excess returns are insignificant when based on a traditional volatility from historical equity returns. However, relying on an implied volatility from equity options results in a substantial gain in strategy execution and highly significant excess returns - even when small gaps are exploited. The gain is largest in the speculative grade segment, and cannot be explained from systematic market risk factors. Although the strategy may seem attractive at an aggregate level, positions on individual obligors can be very risky. JEL Classification: G11, G12, G13. Keywords: credit default swaps, structural models, hedge funds, relative value trading. Books Referenced in this Paper: (what is this?)
Download paper (573K PDF) 44 pages Related reading: How Profitable Is Capital Structure Arbitrage?
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