MF · holdings as filed 2026-05-31

What's inside FXNAX?

Fidelity U.S. Bond Index Fund
Holdings
10,435
positions in the fund
Top 10
7%
of fund assets
Expense ratio
0.03%
net, per year
Fund size
$69B
total net assets

Top 20 holdings

RankLogoTicker / NameWeight
1
BOND
US Treasury Note1.5% · Feb 2030
0.93%
2
BOND
US Treasury Note2.75% · Aug 2032
0.86%
3
BOND
US Treasury Note2.625% · Jul 2029
0.83%
4
BOND
US Treasury Note4.125% · Feb 2036
0.77%
5
BOND
US Treasury Note3.5% · Oct 2028
0.73%
6
BOND
US Treasury Note3.5% · Jan 2029
0.72%
7
?
—Fidelity Revere Street Trust
0.67%
8
BOND
Freddie Mac mortgage pool#FR SD8121
0.62%
9
BOND
US Treasury Note3.875% · Aug 2033
0.62%
10
BOND
US Treasury Note3.875% · Jul 2028
0.59%
11
BOND
US Treasury Note3.25% · Jun 2027
0.58%
12
BOND
US Treasury Note4.5% · Nov 2033
0.58%
13
BOND
US Treasury Note4.125% · Oct 2027
0.57%
14
BOND
US Treasury Note4.25% · Feb 2054
0.52%
15
BOND
US Treasury Note3.625% · Aug 2028
0.49%
16
BOND
US Treasury Note3.875% · Mar 2028
0.48%
17
BOND
US Treasury Note3.75% · May 2028
0.48%
18
BOND
US Treasury Note2.25% · Aug 2027
0.47%
19
BOND
US Treasury Note4.125% · Jul 2031
0.46%
20
BOND
US Treasury Note3.875% · Jun 2028
0.45%
Sectors tap a row to see its top 10 holdings
Top holdings — Bonds & Fixed Income
Your 10 largest positions in this sector
1
BOND
US Treasury Note1.5% · Feb 2030
0.93%
2
BOND
US Treasury Note2.75% · Aug 2032
0.86%
3
BOND
US Treasury Note2.625% · Jul 2029
0.83%
4
BOND
US Treasury Note4.125% · Feb 2036
0.77%
5
BOND
US Treasury Note3.5% · Oct 2028
0.73%
6
BOND
US Treasury Note3.5% · Jan 2029
0.72%
7
BOND
Freddie Mac mortgage pool#FR SD8121
0.62%
8
BOND
US Treasury Note3.875% · Aug 2033
0.62%
9
BOND
US Treasury Note3.875% · Jul 2028
0.59%
10
BOND
US Treasury Note3.25% · Jun 2027
0.58%
Geography tap a row to see its top 10 holdings
Top holdings — United States
Your 10 largest positions in this country
1
BOND
US Treasury Note1.5% · Feb 2030
0.93%
2
BOND
US Treasury Note2.75% · Aug 2032
0.86%
3
BOND
US Treasury Note2.625% · Jul 2029
0.83%
4
BOND
US Treasury Note4.125% · Feb 2036
0.77%
5
BOND
US Treasury Note3.5% · Oct 2028
0.73%
6
BOND
US Treasury Note3.5% · Jan 2029
0.72%
7
BOND
Freddie Mac mortgage pool#FR SD8121
0.62%
8
BOND
US Treasury Note3.875% · Aug 2033
0.62%
9
BOND
US Treasury Note3.875% · Jul 2028
0.59%
10
BOND
US Treasury Note3.25% · Jun 2027
0.58%
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 2026-05-31); 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.