Fund Overview
iShares National Muni Bond ETF (MUB) is an exchange-traded fund in the Muni National Interm category. The fund is issued by iShares. The inception date on file is September 7, 2007. The fund holds $45.38B in total net assets. Annual costs run at an expense ratio of 0.05%. On a $10,000 position that is $5.00 a year.
BlackRock Liquidity MuniCash Instl alone accounts for 1.19% of the portfolio.
Performance Analysis
The most recent close on file for MUB is $104.03, dated September 4, 2026. Over the trailing twelve months the price has returned +0.82%. The stored price history starts on February 7, 2025, and the total return since then is +0.65%. The fund distributes at a trailing yield of 3.25%. The provider also reports a 3 years average return of +2.77%.
So far in 2026 the price is −2.62%.
Price & Risk Profile
Daily returns over the trailing 1 year annualize to a volatility of 3.12%. The reported beta is 0.91. Over the past 52 weeks the price has ranged from $103.99 to $109.00. The latest close sits 0.04% above that 52-week low. The volatility figure is calculated from the stored daily closes, the same series the charts on this page use.