EFFECTS OF INDEX‐FUND INVESTING ON COMMODITY FUTURES PRICES

James D. Hamilton and Jing Cynthia Wu

International Economic Review, 2015, vol. 56, issue 1, 187-205

Abstract: We develop a simple model of futures arbitrage that implies that if purchases by commodity index funds influence futures prices, then the notional positions of the index investors should help predict excess returns in these contracts. We find no evidence that the positions of index traders in agricultural contracts as identified by the Commodity Futures Trading Commission can help predict returns on the near futures contracts. Although there is some support that these positions might help predict changes in oil futures prices over 2006–2009, the relation breaks down out of sample.

Date: 2015
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https://doi.org/10.1111/iere.12099

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Working Paper: Effects of Index-Fund Investing on Commodity Futures Prices (2014)
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