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State Street SPDR Portfolio Mortgage Backed Bond ETF (SPMB)

State Street / SPDR

Page updated:
Sep 7, 2026
Data as of:
Sep 3, 2026

Fund identity

Ticker
SPMB
Fund name
State Street SPDR Portfolio Mortgage Backed Bond ETF
Fund type
ETF
Listing venue
NYSE Arca
Currency
USD
Domicile
US
Inception
Jan 15, 2009

Structure and strategy

Sponsor
State Street / SPDR
Management approach
Passive
Strategy
Seeks to track the performance of the Bloomberg U.S. MBS Index.
Portfolio scope
U.S. agency mortgage-backed pass-through securities
Portfolio implementation
Index tracking
Benchmark
Bloomberg U.S. MBS Index
Benchmark symbol
LUMSTRUU
Asset class
Fixed Income
Category
Agency Mortgage-Backed Securities

Costs and minimums

Gross expense ratio
0.04%
Gross expense ratio
0.04%
Ongoing fee as of
Sep 7, 2026

Size and distributions

Assets under management
$7.12B
Assets under management scope
Fund
Reported holdings count
2,757
Distribution frequency
Monthly

Sources

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