iShares U.S. Oil Equipment & Services ETF (iShares U.S. Oil Equipment & Se) ETF

The index measures the performance of the oil equipment and services sector of the U.S. equity market. The fund generally will invest at least 80% of its assets in the component securities of its underlying index and may invest up to 20% of its assets in certain futures, options and swap contracts, cash and cash equivalents. The fund is non-diversified.