Short interest in Geron Corp (NASDAQ:GERN) decreased during the last reporting period, falling from 70.13M to 66.35M. This put 11.04% of the company's publicly available shares short.

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

Based on the recent average volume of 7.42M shares traded per day, it would take 8.94 day(s) for holders of this short interest to close out their positions without sending the stock sharply higher.