# iShares National Muni Bond ETF (MUB): ETF Facts & Distributions > Markdown mirror of https://www.dividenddata.com/funds/mub for AI agents. Same live data as the HTML page, regenerated on the same refresh cycle. Not investment advice. - Issuer: IShares · Asset class: Fixed Income - Strategy: Passive Index · Inception: 2007-09-07 This exchange-traded fund is designed to closely replicate the performance of a designated index, which exclusively comprises high-quality municipal bonds issued across the United States. ## Key Facts | Metric | Value | |---|---| | Price | $103.24 | | Expense Ratio | 0.05% | | Assets Under Management | $52.13B | | NAV | $102.27 | | Holdings Count | 7652 | | Distribution Yield (TTM) | 3.31% | | Annual Distribution (TTM) | $3.42 /share | | Distribution Frequency | Monthly | | 52-Week Range | $100.07 – $109.00 | | Beta | 0.90 | ## Latest Distribution - Amount: $0.2793 /share - Ex-date: 2026-10-01 - Pay date: 2026-10-06 ## Frequently Asked Questions ### What does MUB invest in? This exchange-traded fund is designed to closely replicate the performance of a designated index, which exclusively comprises high-quality municipal bonds issued across the United States. ### What is the expense ratio of MUB? iShares National Muni Bond ETF (MUB) charges an expense ratio of 0.05%. This is the annual fee deducted from fund assets to cover management and operations. ### What is MUB's dividend yield? MUB's trailing-twelve-month yield is 3.31%, calculated from the sum of dividends over the past year divided by the current price. ### What is the duration of MUB? Effective duration measures MUB's sensitivity to interest-rate changes: a duration of 6 means a 1% rate move shifts NAV by roughly 6% in the opposite direction. MUB's current duration is published on the fund's factsheet on the issuer's website. ### What is the credit quality of MUB? MUB's credit quality breakdown (the share of holdings rated AAA through CCC and below) is published on the fund's factsheet. Higher-quality (investment-grade) funds yield less but carry less default risk than high-yield / junk bond funds. ### What is the yield to maturity of MUB? Yield to maturity (YTM) is the total return you'd earn from MUB if every bond in the portfolio is held to maturity at the current price. MUB's YTM is published on the fund's factsheet on the issuer's website. It differs from the trailing-12-month yield because YTM reflects current bond prices rather than historical income paid. ### Does MUB pay a dividend? Yes, iShares National Muni Bond ETF (MUB) distributes dividends to shareholders. The trailing-twelve-month yield is 3.31%. Full dividend history is on this page. ### How often does MUB pay dividends? iShares National Muni Bond ETF pays dividends Monthly. Each ex-dividend date, record date, and payment date is listed in the dividend history table on this page. ### When is MUB's next ex-dividend date? The most recently announced ex-dividend date for MUB was 2026-10-01. The next ex-date typically follows Monthly; once announced it appears at the top of the dividend history table on this page. ### How much will MUB's expense ratio cost me over 30 years? On a $10,000 investment compounding at 7% gross return, a 0.05% expense ratio quietly compounds against your balance every year. The Fee Compounding Forecast card above projects the dollar drag for any holding period and assumption you pick. The typical result for a 1.0% expense ratio on a 30-year hold is roughly 25% of the final balance lost to fees. ### How does MUB charge its expense ratio? The expense ratio is deducted in tiny daily slices from MUB's net asset value (NAV). You never see a bill. The price quoted on every exchange is already net of fees. There's no "fee day" to avoid; the cost is continuous and built into the trading price. ### Why does MUB cost more than a fund like VOO? MUB is a passive index fund (current expense ratio 0.05%). Differences from broad-market ETFs like VOO usually come from index licensing fees, asset class (bond funds typically run cheaper than equity), or fund scale (smaller funds spread fixed operating costs across less AUM). ### Are there cheaper alternatives to MUB? The Lower-Fee Alternatives card above lists ETFs following the same investment strategy as MUB (0.05%) but at a lower expense ratio. Each row shows the fee gap, the peer's AUM as a liquidity sanity-check, and a direct link to that fund's analysis page. Cheaper price doesn't automatically mean better. Verify the peer holds what you actually want. ## More on Dividend Data - Overview (HTML): https://www.dividenddata.com/funds/mub - Distribution history: https://www.dividenddata.com/funds/mub/dividend - Holdings & diversification: https://www.dividenddata.com/funds/mub/diversification - Fees & cheaper alternatives: https://www.dividenddata.com/funds/mub/expenses - Peer comparison: https://www.dividenddata.com/funds/mub/peers Data sourced from primary filings and market data providers; see https://www.dividenddata.com/methodology.