Fidelity SAI High Income Fund

Fidelity Summer Street Trust · 1 share class

Actively managed U.S. bond fund
One fund, 1 share class:FSHGX
$2.63B NAV
730 positions · as of 2026-04-30 · filed 2026-06-26

Fund classification

Classified from what the fund holds · as of 2026 Q2

Fidelity SAI 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

Fund profile

As filed in the prospectus · 2026 Q2

Fidelity SAI 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 credit quality distribution of the ICE BofAUS High Yield Constrained Index as a guide for structuring its portfolio. It may also hold non-income-producing securities including defaulted securities and common stocks. The fund applies fundamental analysis of issuers' financial condition and industry position to select investments across domestic and foreign markets. Because the fund's holdings depend on the adviser's selection decisions rather than index replication, its credit quality composition may diverge from the index it uses as a reference.

Expenses
0.68%one share class
Share classExpense ratio
FSHGX0.68%

Portfolio turnover 90.00% · as of 2026 Q2

Allocation

Asset groups · long / short shown separately, never netted · 2026 Q2

109.43%
of net assets
Bonds84.62%
Cash & short-term11.45%
Loans7.30%
Stocks5.88%
Securitized0.18%

Look-through blends 1 underlying fund; 1.427% of NAV was not looked through and stays direct-classified. The blend is as of 2025Q3, one or more quarters before the direct holdings (2026Q2).

Sector allocation

The same holdings as Allocation above, grouped by market sector instead of asset type · as of 2026 Q2

100%
of net assets
Other40.7%
International14.2%
Cash13.9%
Energy4.2%
12 smaller27.0%

Government, Securitized and Cash are non-corporate buckets; International is foreign holdings we don’t sector-classify, and Other is the residual (held funds, unresolved names).

Latest quarter

What changed since the fund's previous filing

2026Q2 vs 2026Q1: 106 new195 exited

Largest new: CSC SERVICEWORKS EAST LLC, PR RNO PROPERTY OWNER 1 LLC, HUMANA INC, TULLOW HOLDCO 2 LTD, CORE SCIENTIFIC FINANCE I LLC, DISCOVERY PURCHASER CORPORATION, KOSMOS ENERGY LTD, ADVANCION HOLDINGS LLC

Largest exited: SPIN HOLDCO INC, ECHOSTAR CORP, CONSOLIDATED ENERGY FINANCE SA, X CORP, SOTHEBYS, LIQUID TELECOMMUNICATIONS FINANCING PLC, DISH DBS CORP, ROCKET COMPANIES INC

Return profile

Total return as filed — price change plus distributions reinvested · trailing figures to Apr 2026

1-year
+12.48%
3-year
+32.93%
5-year
59 of 60 months
Volatility
3.63%
Worst 3-yr fall
-3.22%
Cumulative return· May 2023 – Apr 2026

Debt profile

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

Avg coupon
6.57%
Avg maturity
6.03 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.

15%
floating
Fixed rate85.1%
Floating rate14.9%
Maturity ladder

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

<1y10y+
<1y1.9%
1-3y15.2%
3-5y33.4%
5-10y44.1%
10y+5.5%
Flagged holdings
Defaulted: 1.14% · $27.15M · 6 positions
In arrears: 1.14% · $27.15M · 6 positions
Paid in kind: 1.84% · $43.55M · 12 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.

Interest-rate duration
3.05 yr
approx. move per 100bp
Credit-spread duration
3.62 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.

+3.62
yrs total
High yield+2.96 yr
Investment grade+0.66 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 yr0.56 yr18%
5 yr1.76 yr58%
10 yr0.64 yr21%
30 yr0.06 yr2%
Credit spread3.62 yr total
3 mo30 yr
3 mo0.50 yr14%
1 yr1.36 yr38%
5 yr1.42 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$12.0k$120.0k
1 yr+0.56+0.14+1.22$36.5k$320.9k
5 yr+1.76+0.26+1.15$68.9k$303.8k
10 yr+0.64+0.17+0.10$46.0k$27.4k
30 yr+0.06+0.03+0.03$9.1k$6.8k

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

Holdings

By % of NAV · equity positions carry filed share counts · every resolvable issuer links to its company page

Issuer%NAVValue
Fidelity Revere Street Trust10.02%$263.55M
Fidelity Revere Street Trust5.41%$142.22M
UST NOTES4.00% · due 2034-02-152.06%$54.27M
Fidelity Private Credit Central Fund LLC1.60%$42.22M
NEW FORTRESS ENERGY INC0.00% floating · due 2028-10-300.68%$17.76M
1261229 BC LTD9.90% floating · due 2030-10-080.66%$17.30M
UNITED PF HOLDINGS LLC7.92% floating · due 2026-12-300.53%$14.01M
PG and E CORP5.25% · due 2030-07-010.53%$13.99M
ARTERA SERVICES LLC8.50% · due 2031-02-150.53%$13.99M
COREWEAVE INC9.00% · due 2031-02-010.52%$13.76M
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Reported price is the fund's own reported value divided by its own reported shares at 2026-04-30 — not a live quote, and not what the fund paid.

Top 10 positions are 22.54% of net assets, top 25 29.13%, across 385 issuers.

See more of this fund's book

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