Short interest in Protagenic Therapeutics Inc (NASDAQ:PTIX) decreased during the last reporting period, falling from 145.53K to 98.44K. This put 1.68% of the company's publicly available shares short.

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

Based on the recent average volume of 389.09K shares traded per day, it would take 1 day(s) for holders of this short interest to close out their positions without sending the stock sharply higher.