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SPHIX

Fidelity High Income Fund

Actively managedBondsOpen-end fund
Fidelity Summer Street Trust: SPHIX · FGRMX · FGSMX · FGTMX · FGUMX · FGQMXHoldings as of Apr 30, 2026Filed Jun 26, 2026

Actively managed U.S. bond fund

As of its 2026 Q2 report, Fidelity High Income Fund held 741 positions with $3.00B in net assets. Its ten largest holdings made up 22.6% of the fund. The SPHIX share class costs 0.69% a year. Over the 12 months to May 2026, SPHIX returned 11.3%, with dividends reinvested. In 2026 Q3 it added 82 new positions and exited 94.

2026 Q2 holdings and allocationChanges are against the previous quarter, 2026 Q2Headline fees and returns use the SPHIX share class
Expense ratio · SPHIX
0.69%
$69 a year for every $10,000 invested
0.63% – 1.73% across the 6 classes
$3.00B
The whole fund, all share classes
741 holdings
22.6%in the top 10
Weight held in the ten largest holdings
Top 25 hold 28.6%
Return, 1 year · SPHIX
+11.3%
With dividends, to May 2026
3 yr total +34.9% · 5 yr total +25.5%
What this fund is
Objective, as filed

Fidelity High Income Fund seeks a high level of current income. Growth of capital may also be considered.

Strategy, summarised

The fund invests primarily in below-investment-grade debt securities, preferred stocks, and convertible securities, using the ICE BofAUS High Yield Constrained Index as a guide to its credit quality composition. The fund may also hold non-income-producing securities, including defaulted securities and common stocks, and invests in companies in troubled or uncertain financial condition. Because the fund's selection depends on fundamental analysis of each issuer's financial condition and industry position rather than mechanical index tracking, its credit quality composition may diverge from the index it uses as a reference.

What you own

per cent of the fund
CompanyWeightValue
Fidelity Revere Street Trust
10.89%
$326.89M
Fidelity Revere Street Trust
5.73%
$172.12M
UST NOTES
4.00% · due 2034-02-15
2.26%
$67.80M
NEW FORTRESS ENERGY INC
0.00% floating · due 2028-10-30
0.65%
$19.43M
1261229 BC LTD
9.90% floating · due 2030-10-08
0.54%
$16.23M
1261229 BC LTD
10.00% · due 2032-04-15
0.53%
$16.00M
COREWEAVE INC
9.00% · due 2031-02-01
0.50%
$14.93M
ORACLE CORP
3.60% · due 2040-04-01
0.49%
$14.81M
ARTERA SERVICES LLC
8.50% · due 2031-02-15
0.48%
$14.56M
CSC SERVICEWORKS EAST LLC
0.00% floating · due 2030-09-04
0.48%
$14.34M
Showing 1–10 of 741 · the top 10 are 22.56% of the fund, the top 25 are 28.62%

The 200 largest of 741 holdings, with the share counts as filed, open with a free account.

What the fund is made of

Percentages are of fund net assets. Rounding, liabilities and short positions can make totals differ from 100%.

111.81%
of net assets
Bonds83.06%
Cash & short-term16.62%
Loans8.33%
Stocks3.78%
Securitized0.01%

These positions come to 111.81% of the fund's net assets. This counts only what the fund reported holding — the holdings disclosure covers assets, not liabilities such as borrowings — so it is not expected to reconcile to 100%.

By sector

Other
41.2%
International
14.0%
Cash
10.1%
Energy
4.4%
12 other sectors
30.3%

How it has done

Total return, dividends reinvested · to May 2026

SPHIX share class · total returns with dividends reinvested

1 year
+11.28%
3 years
+34.90%
Cumulative, not per year
5 years
+25.50%
Cumulative, not per year
Largest decline in 3 years
-3.05%
From a previous high to a later low
Cumulative return, last three years· Aug 2023 – May 2026

Volatility over the last 12 months: 3.60%. Past returns are a record, not a forecast.

Jun 2026 and Jul 2026 have been filed since the trailing figures were struck, so they are not in the table above or the curve — every figure here shares one cut-off, which is what makes them comparable with other funds.

The 6 share classes hold the same portfolio

Share classExpense ratio1 year3 years5 yearsWorst fall
0.69%+11.28%+34.90%+25.50%-3.05%
0.98%+11.10%+33.77%+23.70%-3.14%
1.73%+10.13%+31.07%+19.54%-3.17%
0.73%+11.22%+34.63%+25.12%-2.97%
0.63%+11.50%+34.99%+25.74%-3.05%
0.98%+10.96%+33.75%+23.71%-3.14%

These classes hold the same portfolio, so the 6.20pp spread over 5 years is the cost difference between them — roughly 1.24pp a year — not a difference in what they own.

Fees & fund details

Fidelity High Income Fund is an actively managed U.S. bond fund.

Asset class
Bonds
Region
United States
Management
Actively managed
Fund type
Open-end fund
Credit quality
High yield
Rate sensitivity
Intermediate duration
Features
Fund of funds
Expense ratio, by class
0.63% – 1.73%· SPHIX 0.69%
Portfolio turnover
78.00% a year · as of 2026 Q2

Turnover is how much of the portfolio was replaced in a year.

Classified from what the fund holds, not from its name · 2026 Q2. The summary is a paraphrase of the prospectus; the objective is verbatim.

What changed this quarter

2026 Q3 vs 2026 Q2

Positions that entered or left the fund since its previous filing. Positions that were only resized are not listed.

82 new· the largest 8

PROOFPOINT INC
GALAXY HELIOS DATA CENTERS II LLC
AMERICAN AIRLINES INC
TOUCAN FINCO LTD/TOUCAN FINCO CAN INC/TOUCAN FINCO US LLC
CLYDESDALE ACQUISITION HOLDINGS INC
JPMORGAN CHASE and CO
APLD COMPUTECO 3 LLC
AP CORE HOLDINGS II LLC

94 exited· the largest 8

MEDLINE BORROWER LP/MEDLINE CO-ISSUER INC
EG GLOBAL FINANCE PLC
CHS/CMNTY HEALTH SYSTEMS INC
WR GRACE HOLDING LLC
DELEK LOGISTICS PARTNERS LP / DELEK LOGISTICS FINANCE CORP
ECHOSTAR CORP
ACCENDRA HEALTH INC
GOLAR LNG LTD

Debt profile

What this fund holds — value-weighted across its bond and securitized long positions · as of 2026-04-30

Avg coupon
6.56%
Avg maturity
5.88 yr
Coupon type

Share of the fund's debt by how its coupon behaves — the fact that decides whether a rate move reaches this portfolio at all.

14%
floating
Fixed rate86.0%
Floating rate14.0%
Maturity ladder

Share of the fund's debt value in each maturity band, shortest first.

<1y10y+
<1y1.8%
1-3y16.8%
3-5y33.2%
5-10y43.0%
10y+5.2%
Flagged holdings
Defaulted: 1.07% · $29.29M · 13 positions
In arrears: 1.07% · $29.29M · 13 positions
Paid in kind: 1.81% · $49.68M · 13 positions

These three overlap — one holding can be in arrears and paying in kind at once — so they are shown separately and never summed.

Risk profile

Interest-rate and credit-spread sensitivity, both in years · as of 2026Q2

More of this fund’s sensitivity sits in credit spreads than in interest rates — a rate rally that comes with a credit selloff works against it.

3.05 yr
approx. move per 100bp
3.61 yr
approx. move per 100bp
If rates and spreads both rise 100bp

Where the loss would come from. The two shocks are the same size, so this is the balance of the fund's two sensitivities rather than a bet on one moving more.

≈ -6.5%
of value
Credit spreads54%
Interest rates46%

Filers report the impact of a 0.01% move only, so the total is our own scaling of that one number and overstates the loss on most bonds — read it as approximate, never as precise. The two sensitivities overlap rather than add up: they measure the same positions against different shocks, which is why the durations above are shown side by side and never summed.

Credit risk by quality

Share of the fund's spread duration carried by each credit tier.

+3.61
yrs total
High yield+2.94 yr
Investment grade+0.67 yr
Where the risk sits on the curve

Share of duration at each point, shortest first. A positive figure loses value when spreads widen; a negative one offsets — a credit hedge.

Interest rate3.05 yr total
3 mo30 yr
3 mo0.03 yr1%
1 yr0.58 yr19%
5 yr1.75 yr57%
10 yr0.62 yr20%
30 yr0.06 yr2%
Credit spread3.61 yr total
3 mo30 yr
3 mo0.51 yr14%
1 yr1.35 yr38%
5 yr1.40 yr39%
10 yr0.28 yr8%
30 yr0.06 yr2%

The two bands measure the same positions against different shocks and do not add — a Treasury carries rate duration and no spread duration, a floating-rate credit the reverse. Rate tenors are also summed across every currency the fund discloses.

Show the numbers
TenorRate yrsIG yrsHY yrsIG $/bpHY $/bp
3 mo+0.03+0.05+0.46$14.0k$138.2k
1 yr+0.58+0.14+1.21$42.5k$364.2k
5 yr+1.75+0.27+1.13$81.1k$340.6k
10 yr+0.62+0.17+0.11$51.7k$31.9k
30 yr+0.06+0.03+0.03$10.4k$7.9k

Dollar change per 1bp of spread movement, as filed and sign-anchored. A blank cell was not filed; a zero was.

A newer credit-spread reading (2026Q3) is on file. This page holds one quarter across every figure on it, so that one appears here next quarter.

Connected research

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