EA Series Trust - Castellan Targeted Equity ETF (CTEF) 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.

EA Series Trust - Castellan Targeted Equity ETF (CTEF) operates in the Financial Services sector, specifically the Asset Management industry, with a market capitalization near $633.2M, listed on CBOE, carrying a beta of 1.36 to the broader market. CTEF aims for capital appreciation through the GARP investment style, targeting growth at a reasonable price. public since 2025-06-18.

Open interest history tracks how outstanding options contracts change over time. No recent options activity for CTEF as of 2026-10-15; 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 →