Short interest in Vertex Pharmaceuticals Inc (NASDAQ:VRTX) increased during the last reporting period, rising from 4.29M to 4.50M. This put 1.75% of the company's publicly available shares short.

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

Based on the recent average volume of 995.69K shares traded per day, it would take 4.52 day(s) for holders of this short interest to close out their positions without sending the stock sharply higher.