AAM Transformers ETF (TRFM) 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.

AAM Transformers ETF (TRFM) operates in the Financial Services sector, specifically the Asset Management industry, with a market capitalization near $151.8M, listed on AMEX, carrying a beta of 1.64 to the broader market. This ETF employs a passive, indexing strategy, aiming to replicate the overall investment returns of its underlying index, prior to the deduction of fees and expenses. public since 2022-07-12.

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