FIBUX
Fidelity Flex U.S. Bond Index Fund
Fidelity Salem Street Trust
Index fund

Portfolio concentration

As of February 28, 2026 · N-PORT
Holdings
5579
Top-10 weight
8.85%
Effective holdings ?
448
Crowding ?
108.8

Holdings

As of February 28, 2026 · N-PORT
#SecurityTickerSharesValue% of fund
1 US TREASURY N/B 46,380,000 $46.60M 1.23%
2 Fidelity Cash Central Fund 39,522,782 $39.53M 1.05%
3 US TREASURY N/B 38,840,000 $38.96M 1.03%
4 US TREASURY N/B 35,560,000 $35.83M 0.95%
5 US TREASURY N/B 34,995,000 $34.88M 0.92%
6 US TREASURY N/B 33,130,000 $33.22M 0.88%
7 US TREASURY N/B 32,340,000 $32.67M 0.87%
8 US TREASURY N/B 28,410,000 $28.57M 0.76%
9 US TREASURY N/B 29,973,000 $28.08M 0.74%
10 US TREASURY N/B 26,240,000 $26.32M 0.70%
11 US TREASURY N/B 24,500,000 $25.90M 0.69%
12 US TREASURY N/B 24,950,000 $25.11M 0.67%
13 US TREASURY N/B 23,610,000 $24.22M 0.64%
14 US TREASURY N/B 23,490,000 $23.94M 0.63%
15 US TREASURY N/B 23,390,000 $23.64M 0.63%
16 US TREASURY N/B 22,760,000 $23.13M 0.61%
17 US TREASURY N/B 22,450,000 $22.51M 0.60%
18 US TREASURY N/B 21,200,000 $22.05M 0.58%
19 US TREASURY N/B 21,290,000 $21.54M 0.57%
20 US TREASURY N/B 21,070,000 $21.50M 0.57%
21 US TREASURY N/B 18,370,000 $19.38M 0.51%
22 US TREASURY N/B 19,150,000 $19.36M 0.51%
23 US TREASURY N/B 18,850,000 $18.99M 0.50%
24 US TREASURY N/B 18,700,000 $18.88M 0.50%
25 US TREASURY N/B 18,530,000 $18.86M 0.50%
26 US TREASURY N/B 18,350,000 $18.69M 0.50%
27 US TREASURY N/B 18,010,000 $18.54M 0.49%
28 US TREASURY N/B 19,240,000 $18.22M 0.48%
29 US TREASURY N/B 17,470,000 $17.91M 0.47%
30 US TREASURY N/B 17,430,000 $17.52M 0.46%
31 US TREASURY N/B 16,650,000 $16.85M 0.45%
32 US TREASURY N/B 17,950,000 $16.82M 0.45%
33 US TREASURY N/B 16,370,000 $16.82M 0.45%
34 US TREASURY N/B 16,240,000 $16.29M 0.43%
35 US TREASURY N/B 15,380,000 $15.62M 0.41%
36 US TREASURY N/B 15,070,000 $15.48M 0.41%
37 US TREASURY N/B 15,370,000 $15.34M 0.41%
38 US TREASURY N/B 14,380,000 $15.04M 0.40%
39 US TREASURY N/B 14,500,000 $14.68M 0.39%
40 US TREASURY N/B 13,820,000 $14.19M 0.38%
41 US TREASURY N/B 13,400,000 $13.71M 0.36%
42 US TREASURY N/B 13,510,000 $13.58M 0.36%
43 US TREASURY N/B 12,990,000 $13.26M 0.35%
44 US TREASURY N/B 13,410,000 $13.07M 0.35%
45 G2SF 5 3/25 12,975,000 $13.02M 0.35%
46 US TREASURY N/B 12,400,000 $12.59M 0.33%
47 US TREASURY N/B 13,225,000 $12.52M 0.33%
48 US TREASURY N/B 11,850,000 $12.07M 0.32%
49 GNII II 5.5% 03/01/2056 #TBA 11,825,000 $11.98M 0.32%
50 US TREASURY N/B 11,640,000 $11.83M 0.31%
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