Dimensional - National Municipal Bond ETF (DFNM) 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.

Dimensional - National Municipal Bond ETF (DFNM) operates in the Financial Services sector, specifically the Asset Management - Bonds industry, with a market capitalization near $2.11B, listed on AMEX, carrying a beta of 0.58 to the broader market. Under normal market conditions, the Portfolio will invest at least 80% of its net assets in municipal securities that pay interest exempt from federal income tax. public since 2021-11-16.

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