MUB Stock Summary and Trading Ideas (iShares National Muni Bond ETF | ARCA:MUB)

The Fund seeks to track the investment results of the ICE AMT-Free US National Municipal Index (the Underlying Index ), which measures the performance of U.S. dollar denominated investment grade tax-exempt debt publicly issued in the U.S. domestic market by U.S. states and their political subdivisions. The Underlying Index includes municipal bonds, the interest of which is exempt from Federal income taxes and not subject to alternative minimum tax.

iShares National Muni Bond ETF trades on the ARCA stock market under the symbol MUB.

As of August 25, 2026, MUB stock price climbed to $105.58 with 3,914,095 million shares trading.

MUB has a beta of 0.13, meaning it tends to be less sensitive to market movements. MUB has a correlation of 0.20 to the broad based SPY ETF.

MUB has a market cap of $45.65 billion. This is considered a Large Cap stock.

In the last 3 years, MUB traded as high as $109.00 and as low as $100.29.

MUB has underperformed the market in the last year with a return of +4.6%, while the SPY ETF gained +20.4%. In the last 3 month period, MUB fell short of the market, returning +0.2%, while SPY returned +3.0%. However, in the most recent 2 weeks MUB has outperformed the stock market by returning -0.3%, while SPY returned -0.6%.

MUB support price is $105.20 and resistance is $105.62 (based on 1 day standard deviation move). This means that using the most recent 20 day stock volatility and applying a one standard deviation move around the stock's closing price, stastically there is a 67% probability that MUB shares will trade within this expected range on the day.