Risk and Return in Convertible Arbitrage: Evidence from the Convertible Bond Market
Georgia State University; University of Cologne - Centre for Financial Research (CFR)
London Business School
Yee Cheng Loon
State University of New York at Binghamton
Narayan Y. Naik
London Business School - Institute of Finance and Accounting
December 8, 2010
Journal of Empirical Finance, Forthcoming
In this paper, we identify and document the empirical characteristics of the key drivers of convertible arbitrage as a strategy and how they impact the performance of convertible arbitrage hedge funds. We show that the returns of a buy-and-hedge strategy involving taking a long position in convertible bonds (“CBs”) while hedging the equity risk alone explains a substantial amount of these funds’ return dynamics. In addition, we highlight the importance of non-price variables such as extreme market-wide events and the supply of CBs on performance. Out-of-sample tests provide corroborative evidence on our model’s predictions. At a more micro level, larger funds appear to be less dependent on directional exposure to CBs and more active in shorting stocks to hedge their exposure than smaller funds. They are also more vulnerable to supply shocks in the CB market. These findings are consistent with economies of scale that large funds enjoy in accessing the stock loan market. However, the friction involved in adjusting the stock of risk capital managed by a large fund can negatively impact performance when the supply of CBs declines. Taken together, our findings are consistent with convertible arbitrageurs collectively being rewarded for playing an intermediation role of funding CB issuers whilst distributing part of the equity risk of CBs to the equity market.
Number of Pages in PDF File: 57
Keywords: Hedge Funds, Convertible Bonds, Convertible Arbitrage, Supply, Risk Factors
JEL Classification: G1''8 G19, G23Accepted Paper Series
Date posted: August 15, 2008 ; Last revised: January 15, 2011
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