Short interest in Fastenal Co (NASDAQ:FAST) increased during the last reporting period, rising from 12.05M to 12.24M. This put 2.44% of the company's publicly available shares short.

Short interest for Fastenal gives investors a sense of the degree to which investors are betting on the decline of Fastenal's stock. Short interest data is updated every two weeks.

Based on the recent average volume of 2.74M shares traded per day, it would take 4.46 day(s) for holders of this short interest to close out their positions without sending the stock sharply higher.