Short interest in Alkermes PLC (NASDAQ:ALKS) increased during the last reporting period, rising from 15.82M to 16.12M. This put 14.87% of the company's publicly available shares short.

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

Based on the recent average volume of 1.94M shares traded per day, it would take 8.32 day(s) for holders of this short interest to close out their positions without sending the stock sharply higher.