MFS High Yield Municipal Trust (CMU) 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.

MFS High Yield Municipal Trust (CMU) operates in the Financial Services sector, specifically the Asset Management industry, with a market capitalization near $84.6M, listed on NYSE, carrying a beta of 0.68 to the broader market. MFS High Yield Municipal Trust is a close ended fixed income mutual fund launched and managed by Massachusetts Financial Services Company. Led by Robin Ann Stelmach, public since 1987-03-19.

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