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Limits to Arbitrage and Commodity Index Investment: Front-Running the Goldman Roll

Yiqun Mou

Columbia Business School

November 19, 2010

This paper studies the unique rolling activity of commodity index in futures markets and shows that the resulting price impact is statistically and economically significant. Two trading strategies, devised to exploit this anomaly, yielded excess returns with positive skewness and Sharpe ratios as high as 4.39 from 2000 to March 2010. The profitability of the strategies is positively correlated with the net result of two opposite forces: the size of index investment and the amount of arbitrage capital employed. Due to the price impact, investors forwent 3.6\% annual return, 48\% higher Sharpe ratio, and billions of dollars over the period.

Number of Pages in PDF File: 46

Keywords: Commodity Index, Roll Yield, Front Running, Goldman Roll

JEL Classification: G11, G13, G14

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Date posted: November 29, 2010 ; Last revised: July 17, 2011

Suggested Citation

Mou, Yiqun, Limits to Arbitrage and Commodity Index Investment: Front-Running the Goldman Roll (November 19, 2010). Available at SSRN: http://ssrn.com/abstract=1716841 or http://dx.doi.org/10.2139/ssrn.1716841

Contact Information

Yiqun Mou (Contact Author)
Columbia Business School ( email )
420 West 118th Street
New York, NY 10027
United States
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References:  72
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