Columbia Research Enhanced Small Cap ETF (RESM) 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.

Columbia Research Enhanced Small Cap ETF (RESM) operates in the Financial Services sector, specifically the Asset Management industry, with a market capitalization near $122.2M, listed on AMEX, carrying a beta of 0.70 to the broader market. The Columbia Research Enhanced Small Cap ETF strives for substantial long-term growth by primarily investing in the equities of smaller U. Led by Abigail Johnson, public since 2025-12-11.

Open interest history tracks how outstanding options contracts change over time. No recent options activity for RESM 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 →