ETF · holdings as filed 2026-03-31

What's inside SPMB?

State Street(R) SPDR(R) Portfolio Mortgage Backed Bond ETF
Holdings
2,653
positions in the fund
Top 10
13%
of fund assets
Expense ratio
0.04%
net, per year
Fund size
$7B
total net assets

Top 20 holdings

RankLogoTicker / NameWeight
1
G
GVMXXSTATE ST INST US GOV MM-PREM
7.10%
2
F
FR RQ0094FR RQ0094
0.87%
3
F
FR RQ0041FR RQ0041
0.84%
4
F
FN MA4547FN MA4547
0.79%
5
F
FR SD8212FR SD8212
0.61%
6
G
G2 MB0424G2 MB0424
0.59%
7
F
FR SD8475FR SD8475
0.57%
8
F
FNCL 3.5 4.11FNCL 3.5 4/11
0.56%
9
F
FN MA4701FN MA4701
0.51%
10
G
G2SF 5 4.11G2SF 5 4/11
0.49%
11
F
FN MA4465FN MA4465
0.47%
12
F
FR SD8408FR SD8408
0.46%
13
F
FNCL 2 4.13FNCL 2 4/13
0.46%
14
F
FN FS2040FN FS2040
0.44%
15
F
FR SD8193FR SD8193
0.43%
16
F
FR SD8177FR SD8177
0.43%
17
G
G2SF 5.5 4.11G2SF 5.5 4/11
0.43%
18
F
FR RQ0056FR RQ0056
0.42%
19
F
FR SD8454FR SD8454
0.42%
20
F
FR SD8167FR SD8167
0.41%
Sectors
Top holdings — Unclassified
Your 10 largest positions in this sector
1
F
FR RQ0094FR RQ0094
0.87%
2
F
FR RQ0041FR RQ0041
0.84%
3
F
FN MA4547FN MA4547
0.79%
4
F
FR SD8212FR SD8212
0.61%
5
G
G2 MB0424G2 MB0424
0.59%
6
F
FR SD8475FR SD8475
0.57%
7
F
FNCL 3.5 4.11FNCL 3.5 4/11
0.56%
8
F
FN MA4701FN MA4701
0.51%
9
G
G2SF 5 4.11G2SF 5 4/11
0.49%
10
F
FN MA4465FN MA4465
0.47%
Geography
Top holdings — United States
Your 10 largest positions in this country
1
G
GVMXXSTATE ST INST US GOV MM-PREM
7.10%
2
F
FR RQ0094FR RQ0094
0.87%
3
F
FR RQ0041FR RQ0041
0.84%
4
F
FN MA4547FN MA4547
0.79%
5
F
FR SD8212FR SD8212
0.61%
6
G
G2 MB0424G2 MB0424
0.59%
7
F
FR SD8475FR SD8475
0.57%
8
F
FNCL 3.5 4.11FNCL 3.5 4/11
0.56%
9
F
FN MA4701FN MA4701
0.51%
10
G
G2SF 5 4.11G2SF 5 4/11
0.49%
Geography reflects each issuer's registered business address per SEC EDGAR filings where available, falling back to the exchange or listing where no SEC filing exists — not necessarily where a company's stock is primarily listed (e.g. TSMC is classified as Taiwan even though its ADR trades on the NYSE).
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Data source: official SEC Form N-PORT filings (as of 2026-03-31); expense ratio from SEC prospectus (risk/return) filings. Fund holdings are disclosed quarterly and may reflect a 60-day reporting delay.
Informational and educational only — not investment advice.