Short interest in Invesco National AMT-Free Municipal Bond ETFo (ARCA:PZA) decreased during the last reporting period, falling from 765.78K to 686.76K. This put -% of the company's publicly available shares short.

Short interest for Invesco National AMT-Free Municipal Bond ETFo gives investors a sense of the degree to which investors are betting on the decline of Invesco National AMT-Free Municipal Bond ETFo's stock. Short interest data is updated every two weeks.

Based on the recent average volume of 637.03K shares traded per day, it would take 1.08 day(s) for holders of this short interest to close out their positions without sending the stock sharply higher.