Short interest in iShares U.S. Basic Materials ETF (ARCA:IYM) increased during the last reporting period, rising from 430.73K to 436.75K. This put -% of the company's publicly available shares short.

Short interest for iShares U.S. Basic Materials ETF gives investors a sense of the degree to which investors are betting on the decline of iShares U.S. Basic Materials ETF's stock. Short interest data is updated every two weeks.

Based on the recent average volume of 34.76K shares traded per day, it would take 12.56 day(s) for holders of this short interest to close out their positions without sending the stock sharply higher.