State Street SPDR Portfolio Mortgage Backed Bond ETF
SPMB
New York Stock Exchange Arca- -
USD
- -
- -
Capital Structure
FRC
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in mil. unless spec.Working Capital
FRC
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in mil. unless spec.Growth Rates
FRC
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in mil. unless spec.Quarterly Revenue
FRC
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in mil. unless spec.Quarterly Earnings Per Share
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in mil. unless spec.Quarterly Dividends Per Share
FRC
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in mil. unless spec.- Sector
- Financial Services
- Industry
- Asset Management - Bonds
- Address
- 1 Iron Street Boston MA United States of America 2210
- IPO Date
- Jan 30, 2009
- CIK
- 0001064642
- Website
- ssga.com
- Similar Companies
- Business
- SPDR Portfolio Mortgage Backed Bond ETF (SPMB) is an exchange-traded fund that seeks to provide investment results that, before fees and expenses, correspond generally to the price and yield performance of the Bloomberg U.S. MBS Index. The fund primarily invests in U.S. agency mortgage pass-through securities backed by pools of mortgages issued by government-sponsored enterprises including Government National Mortgage Association (GNMA), Federal National Mortgage Association (FNMA), and Federal Home Loan Mortgage Corporation (FHLMC); its portfolio consists predominantly of mortgage-backed securities (approximately 93.59%), with allocations to open-ended funds (5.75%) and other assets. Launched on January 15, 2009, and managed by State Street Global Advisors, Inc., a subsidiary of State Street Corporation headquartered in Boston, Massachusetts, SPMB trades on the NYSE Arca exchange and targets investors seeking exposure to the U.S. investment-grade mortgage-backed bond market. The ETF operates within the fixed-income segment, focusing on agency mortgage-backed securities that form the core of the U.S. residential mortgage market; it holds no significant non-agency or commercial mortgage-backed securities, emphasizing investment-grade pass-throughs with varying maturities. Geographically, SPMB's holdings are concentrated in U.S. dollar-denominated securities issued by domestic agencies, serving institutional and retail investors including financial advisors, wealth managers, and fixed-income allocators. As part of the broader SPDR Portfolio suite, it benefits from State Street's scale in ETF management, with assets under management supporting low-cost tracking of the benchmark index. Recent developments include ongoing monthly dividend distributions, such as the declaration of $0.0689 per share in late 2025, reflecting stable yield generation amid fluctuating mortgage rates that have remained in a narrow range below 7% throughout 2025. Institutional ownership has expanded, with 237 holders including major players like Financial Engines Advisors, LPL Financial, and State Street Corp. controlling over 269 million shares as of November 2025, alongside increased positions by firms such as Bank of America and Citigroup. No major acquisitions, mergers, or index redefinitions have occurred in the last 1-2 years; however, the fund maintains its focus on the Bloomberg U.S. MBS Index without strategic shifts, adapting passively to market dynamics like Federal Reserve rate policies and mortgage rate volatility into 2025.