Short interest in Apellis Pharmaceuticals Inc (NASDAQ:APLS) decreased during the last reporting period, falling from 21.48M to 18.04M. This put 19.86% of the company's publicly available shares short.

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

Based on the recent average volume of 2.52M shares traded per day, it would take 7.15 day(s) for holders of this short interest to close out their positions without sending the stock sharply higher.