MUB Top Holdings & Constituents
MUB, offered by iShares, holds 6654 reported positions across $45.3B in assets. Its largest holdings are BlackRock Liquidity Funds (1.28%), Board of Regents of the University of Texas System (0.19%), and New York State Thruway Authority (0.15%). The 5 biggest positions account for 1.90% of reported assets. The table below lists every reported holding with its portfolio weight and market value in US dollars — open any constituent to research its own performance.
| Position | Weight | Market Value |
|---|---|---|
— BlackRock Liquidity Funds | 1.28% | $574.31M |
— Board of Regents of the University of Texas System | 0.19% | $86.65M |
— New York State Thruway Authority | 0.15% | $68.62M |
— San Antonio Water System | 0.14% | $63.98M |
— Triborough Bridge & Tunnel Authority | 0.14% | $60.97M |
Holdings data comes from the latest SEC Form N-PORT-P filing for this fund, covering the reporting period ended May 31, 2026. Market values are reported in US dollars, and each weight represents the position's share of reported fund assets. Cash, derivatives, and rounding can mean displayed weights do not total 100%. Funds rebalance and file on a schedule, so this page may not reflect intraday or post-filing changes.