Pairs trading is a venerable trading strategy. There is agreement that it worked fine in the far past. But it is less clear if it still profitable today. In this working paper the universe of eligible pairs is defined by the holdings of a given ETF. It is shown that the stocks must be from ETFs...

Using a unique proprietary data set of positions held by all large traders in the crude oil, gasoline, and heating oil futures markets, we use actual trader profits to test the predictions of various commodity futures pricing models. We find statistically and economically significant evidence...