FundWatcher
SPMB
State Street(R) SPDR(R) Portfolio Mortgage Backed Bond ETF
SPDR SERIES TRUST
ETFIndex fund

Portfolio concentration

As of March 31, 2026 · N-PORT
Holdings
2653
Top-10 weight
12.93%
Effective holdings ?
147
Crowding ?
124.0

Holdings

As of March 31, 2026 · N-PORT
#SecurityTickerSharesValue% of fund
1 State Street Navigator Securities Lending Portfolio II GVMXX 516,592,702 $516.59M 7.49%
2 FR RQ0094 — 64,396,862 $63.52M 0.92%
3 FR RQ0041 — 60,014,021 $61.15M 0.89%
4 FN MA4547 — 70,908,417 $57.43M 0.83%
5 FR SD8212 — 52,513,033 $44.48M 0.64%
6 G2 MB0424 — 42,674,453 $42.98M 0.62%
7 FR SD8475 — 41,153,323 $41.41M 0.60%
8 FNCL 3.5 4/26 — 44,900,000 $41.15M 0.60%
9 FN MA4701 — 38,653,174 $37.46M 0.54%
10 G2SF 5 4/26 — 36,125,000 $35.75M 0.52%
11 FN MA4465 — 42,449,137 $34.38M 0.50%
12 UMBS Pool, 30 Year FHLMC 33,105,527 $33.31M 0.48%
13 FNCL 2 4/26 — 41,350,000 $33.28M 0.48%
14 Uniform Mortgage-Backed Securities FNMA 39,890,427 $32.30M 0.47%
15 FR SD8193 — 39,138,159 $31.66M 0.46%
16 FR SD8177 — 38,878,871 $31.49M 0.46%
17 G2SF 5.5 4/25 — 30,825,000 $31.01M 0.45%
18 FR RQ0056 — 30,792,232 $30.94M 0.45%
19 FR SD8454 — 30,174,895 $30.77M 0.45%
20 FR SD8167 — 35,051,955 $29.73M 0.43%
21 G2 MB0871 — 29,878,297 $29.62M 0.43%
22 Fannie Mae Pool — 26,973,393 $27.85M 0.40%
23 UMBS, 30 Year FN 27,525,011 $27.70M 0.40%
24 FR RQ0040 — 27,152,195 $27.29M 0.40%
25 FN MA4437 — 33,388,777 $27.06M 0.39%
26 Freddie Mac Pool — 26,353,298 $26.94M 0.39%
27 G2 MB0365 — 27,011,181 $26.78M 0.39%
28 G2 MB0485 — 26,186,563 $26.38M 0.38%
29 FNMA 30YR 5.5% 10/01/2053#CB7336 — 26,024,923 $26.25M 0.38%
30 UMBS FHLMC 29,294,969 $25.83M 0.37%
31 G2 MB0092 — 25,565,742 $25.82M 0.37%
32 Fannie Mae Pool — 26,015,108 $25.79M 0.37%
33 FN MA4512 — 30,401,739 $25.75M 0.37%
34 FN MA5445 — 25,219,339 $25.72M 0.37%
35 FR SD8178 — 30,260,203 $25.65M 0.37%
36 FR SD8342 — 25,374,306 $25.58M 0.37%
37 G2 MB0146 — 25,476,131 $25.27M 0.37%
38 FNCL 5 4/26 — 25,175,000 $24.82M 0.36%
39 FR SD8121 — 30,458,580 $24.78M 0.36%
40 FR SD8243 — 26,488,516 $24.32M 0.35%
41 FN MA4515 — 26,433,780 $23.84M 0.35%
42 G2SF 6 4/25 — 23,400,000 $23.79M 0.34%
43 FNCL 6.5 4/26 — 22,625,000 $23.40M 0.34%
44 FR SD8492 — 23,527,293 $23.23M 0.34%
45 FR RQ0013 — 22,273,913 $22.38M 0.32%
46 FN MA5528 — 23,432,687 $22.14M 0.32%
47 FN MA5164 — 22,328,444 $22.10M 0.32%
48 G2 MA7826 — 26,668,182 $22.01M 0.32%
49 FN MA5530 — 22,214,300 $21.95M 0.32%
50 FR SD8140 — 26,879,449 $21.84M 0.32%
1 / 54 Next ›

Machine-readable: JSON · Markdown. Programmatic access via the agent surface.