Short interest in Eaton Vance National Municipal Opportunities Trust (NYSE:EOT) increased during the last reporting period, rising from 15.61K to 69.42K. This put -% of the company's publicly available shares short.

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

Based on the recent average volume of 43.12K shares traded per day, it would take 1.61 day(s) for holders of this short interest to close out their positions without sending the stock sharply higher.