Short interest in Federal National Mortgage Association Fannie Mae (OTC:FNMA) increased during the last reporting period, rising from 3.57M to 4.70M. This put 0.41% of the company's publicly available shares short.

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

Based on the recent average volume of 29.93M 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.