Short interest in Federal Signal Corp (NYSE:FSS) increased during the last reporting period, rising from 1.50M to 1.83M. This put 4.18% of the company's publicly available shares short.

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

Based on the recent average volume of 372.22K shares traded per day, it would take 4.91 day(s) for holders of this short interest to close out their positions without sending the stock sharply higher.