Short interest in Calamos ETF Trust Calamos S&P 500 Structured Alt Protection ETF September (ARCA:CPST) increased during the last reporting period, rising from 3.48K to 3.64K. This put -% of the company's publicly available shares short.

Short interest for Calamos ETF Trust Calamos S&P 500 Structured Alt Protection ETF September gives investors a sense of the degree to which investors are betting on the decline of Calamos ETF Trust Calamos S&P 500 Structured Alt Protection ETF September's stock. Short interest data is updated every two weeks.

Based on the recent average volume of 1.13K shares traded per day, it would take 3.21 day(s) for holders of this short interest to close out their positions without sending the stock sharply higher.