Calamos Russell 2000 Structured Alt Protection ETF – October (CPRO) Open Interest History

Open interest tracks the total number of outstanding options contracts. Rising OI alongside price moves can indicate growing commitment to the trend; declining OI suggests positions are being closed.

Calamos Russell 2000 Structured Alt Protection ETF – October (CPRO) operates in the Financial Services sector, specifically the Asset Management industry, with a market capitalization near $28.9M, listed on AMEX, carrying a beta of 0.21 to the broader market. The Calamos Structured Protection ETF is engineered to mirror the positive price appreciation of the Russell 2000 index, with returns capped at a predetermined limit. public since 2016-01-27.

Open interest history tracks how outstanding options contracts change over time. No recent options activity for CPRO as of 2026-07-17; this typically reflects low options liquidity, a recently listed name, or a temporary data feed delay. Snapshot will refresh on the next active session.

Learn how open interest is reported and how to read the data →