Innovator Power Buffer Step-Up Strategy ETF (PSTP) 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.

Innovator Power Buffer Step-Up Strategy ETF (PSTP) operates in the Financial Services sector, specifically the Asset Management industry, with a market capitalization near $127.9M, listed on AMEX, carrying a beta of 0.48 to the broader market. The Innovator Power Buffer Step-Up ETF is an actively-managed fund that seeks to provide risk-managed exposure to the SPDR S&P 500 ETF Trust (SPY). public since 2022-03-08.

Open interest history tracks how outstanding options contracts change over time. No recent options activity for PSTP as of 2026-06-01; 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 →