Short interest in Calamos Russell 2000 Structured Alt Protection ETF - October (ARCA:CPRO) increased during the last reporting period, rising from 70.00 to 4.42K. This put -% of the company's publicly available shares short.

Based on the recent average volume of 8.16K 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.