Short interest in Ameresco Inc (NYSE:AMRC) increased during the last reporting period, rising from 4.01M to 4.17M. This put 15.44% of the company's publicly available shares short.

Based on the recent average volume of 619.08K shares traded per day, it would take 6.74 day(s) for holders of this short interest to close out their positions without sending the stock sharply higher.