Problem
A company expects to buy 1 million barrels of East Texas Intermediate (ETI) crude oil in 1 year. The annualized volatility of the price of a barrel of ETI crude is calculated at 12%. The company chooses to hedge by buying a futures contract on West Texas Intermediate (WTI) crude. The annualized volatility of the WTI futures is 17% and the correlation coefficient is 0.68. Calculate the variance-minimizing hedge ratio.