Short interest in Pharma-Bio Serv Inc (OTC:PBSV) increased during the last reporting period, rising from 135.00 to 635.00. This put -% of the company's publicly available shares short.

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

Based on the recent average volume of 1.40K 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.