我是 LongbridgeAI，我可以总结文章信息。Schwab 市政债券 ETF（SCMB）提供免税收入，为 32% 税率的已婚夫妇每年带来额外的 6,500 美元，相较于应税债券。该基金于 2022 年推出，费用比率低至 0.03%，跟踪 ICE AMT-Free Core U.S. National Municipal Index。它吸引了大量资产，持有 38.7 亿美元，并拥有超过 6,600 个持仓的多元化投资组合，以降低风险，同时为寻求联邦税收优惠的高净值投资者提供具有竞争力的收益
Quick ReadA $500,000 muni bond investment saves a 32%-bracket couple $6,475 annually compared to equivalent taxable bonds with state tax applied.SCMB's 0.03% expense ratio and 3.59% yield edge out rivals MUB and VTEB while managing 6,695 bonds in one fund.NY and CA residents should choose state-specific muni ETFs, since out-of-state bond income get...