Short interest in Actinium Pharmaceuticals Inc (AMEX:ATNM) increased during the last reporting period, rising from 1.44M to 1.49M. This put 4.76% of the company's publicly available shares short.

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

Based on the recent average volume of 268.54K shares traded per day, it would take 5.53 day(s) for holders of this short interest to close out their positions without sending the stock sharply higher.