Eaton Vance Senior Floating-Rate Trust (EFR) 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.

Eaton Vance Senior Floating-Rate Trust (EFR) operates in the Financial Services sector, specifically the Asset Management industry, with a market capitalization near $312.4M, listed on NYSE, carrying a beta of 0.35 to the broader market. The Eaton Vance Senior Floating-Rate Trust is a closed-end investment fund, expertly managed by Eaton Vance Management, that concentrates its investments within the U. Led by Payson F. Swaffield, public since 2003-11-25.

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