A number of seemingly unrelated commodities experienced simultaneous price spikes recently. Congress investigated the increase in prices and concluded that the price increases were not attributable to fundamentals but rather to commodity index investing. The purpose of this study is to evaluate...

This study shows how the investor sentiment in the stock market affects prices of commodity exchange-traded funds (ETFs). The study provides quantitative evidence that the tracking errors of commodity ETFs differ in the bullish versus the bearish stock market, and the aggregate tracking error of...