SSAFX
State Street Aggregate Bond Index Portfolio
STATE STREET INSTITUTIONAL INVESTMENT TRUST
Index fund

Portfolio concentration

As of March 31, 2026 · N-PORT
Holdings
6680
Top-10 weight
9.20%
Effective holdings ?
229
Crowding ?
175.1

Holdings

As of March 31, 2026 · N-PORT
#SecurityTickerSharesValue% of fund
1 State Street Navigator Securities Lending Portfolio II GVMXX 207,887,342 $207.89M 3.38%
2 State Street Navigator Securities Lending Portfolio II GVMXX 133,504,325 $133.50M 2.17%
3 US TREASURY N/B 27,500,000 $27.71M 0.45%
4 US TREASURY N/B 26,500,000 $26.29M 0.43%
5 US TREASURY N/B 26,700,000 $26.05M 0.42%
6 US TREASURY N/B 25,500,000 $25.83M 0.42%
7 US TREASURY N/B 25,000,000 $24.98M 0.41%
8 US TREASURY N/B 24,500,000 $24.41M 0.40%
9 US TREASURY N/B 24,000,000 $23.88M 0.39%
10 US TREASURY N/B 24,500,000 $23.85M 0.39%
11 State Street Navigator Securities Lending Portfolio II GVMXX 23,368,883 $23.37M 0.38%
12 US TREASURY N/B 23,000,000 $22.41M 0.36%
13 US TREASURY N/B 21,750,000 $22.31M 0.36%
14 US TREASURY N/B 22,500,000 $22.20M 0.36%
15 US TREASURY N/B 22,000,000 $21.94M 0.36%
16 US TREASURY N/B 22,000,000 $21.81M 0.35%
17 US TREASURY N/B 21,500,000 $21.59M 0.35%
18 US TREASURY N/B 23,750,000 $20.62M 0.33%
19 US TREASURY N/B 20,500,000 $20.25M 0.33%
20 US TREASURY N/B 20,500,000 $20.14M 0.33%
21 US TREASURY N/B 20,000,000 $20.03M 0.33%
22 US TREASURY N/B 20,000,000 $19.97M 0.32%
23 US TREASURY N/B 20,000,000 $19.94M 0.32%
24 FR RQ0041 19,537,933 $19.91M 0.32%
25 US TREASURY N/B 20,000,000 $19.61M 0.32%
26 US TREASURY N/B 19,500,000 $19.49M 0.32%
27 US TREASURY N/B 19,500,000 $19.37M 0.31%
28 US TREASURY N/B 22,000,000 $19.29M 0.31%
29 US TREASURY N/B 20,000,000 $18.83M 0.31%
30 US TREASURY N/B 18,750,000 $18.82M 0.31%
31 US TREASURY N/B 20,000,000 $18.77M 0.30%
32 US TREASURY N/B 18,000,000 $18.19M 0.30%
33 US TREASURY N/B 18,500,000 $18.02M 0.29%
34 US TREASURY N/B 18,000,000 $17.99M 0.29%
35 US TREASURY N/B 18,000,000 $17.94M 0.29%
36 US TREASURY N/B 20,500,000 $17.87M 0.29%
37 US TREASURY N/B 18,000,000 $17.76M 0.29%
38 US TREASURY N/B 19,500,000 $17.65M 0.29%
39 US TREASURY N/B 17,500,000 $17.18M 0.28%
40 US TREASURY N/B 17,000,000 $16.98M 0.28%
41 US TREASURY N/B 17,000,000 $16.97M 0.28%
42 US TREASURY N/B 17,000,000 $16.79M 0.27%
43 US TREASURY N/B 16,750,000 $16.62M 0.27%
44 FN MA4465 20,384,107 $16.51M 0.27%
45 US TREASURY N/B 16,500,000 $16.51M 0.27%
46 US TREASURY N/B 17,000,000 $16.24M 0.26%
47 FR SD8475 16,102,156 $16.20M 0.26%
48 US TREASURY N/B 16,000,000 $16.20M 0.26%
49 US TREASURY N/B 17,250,000 $16.12M 0.26%
50 US TREASURY N/B 18,500,000 $16.05M 0.26%
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