ProShares - S&P 500 Dynamic Buffer ETF (FB) 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.

ProShares - S&P 500 Dynamic Buffer ETF (FB) operates in the Financial Services sector, specifically the Asset Management - Global industry, with a market capitalization near $8.4M, listed on CBOE, carrying a beta of 0.24 to the broader market. The index measures the performance of this Dynamic Buffer Strategy based on the S&P 500 Index using a long position in the S&P 500 Index along with three different S&P 500 Index options that have one day to expiration. public since 2025-06-26.

Open interest history tracks how outstanding options contracts change over time. No recent options activity for FB as of 2026-06-02; 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 →