State Street Target Retirement 2055 Fund

STATE STREET INSTITUTIONAL INVESTMENT TRUST · 3 share classes

Target-date 2055 fund
One fund, 3 share classes:SSDOXSSDQXSSAWX
$2.44B NAV
5 positions · as of 2026-06-30 · filed 2026-08-28

Fund classification

Classified from what the fund holds · as of 2026 Q2

State Street Target Retirement 2055 Fund is a target-date 2055 fund.

Asset class
Target-date
Region
United States
Management
Actively managed
Fund type
Open-end fund
Target year
2055
Features
Fund of funds

Fund profile

As filed in the prospectus · 2026 Q2

The investment objective of the State Street Target Retirement 2055 Fund (the Target Retirement 2055 Fund ? or the Fund) is to seek capital growth and income over the long term.

Strategy · summarised

The fund is a fund of funds that invests in a combination of mutual funds and ETFs sponsored by the adviser, holding equity and fixed-income securities worldwide including emerging markets and real estate. The fund's asset allocation shifts progressively toward fixed income and away from equities as its 2055 target retirement date approaches, reflecting a glide path designed to reduce risk over time. The adviser may deviate from target allocations at its discretion and may modify the selection of underlying funds.

Expenses
0.09% 0.59%across 3 share classes
Share classGrossNet
SSDOX0.36%0.29%
SSDQX0.16%0.09%
SSAWX0.66%0.59%

Net is what a holder pays after the adviser's contractual waiver; gross is before it. A waiver can expire.

Portfolio turnover 17.00% · as of 2026 Q2

Allocation

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

101.79%
of net assets
Stocks88.73%
Bonds9.48%
Cash & short-term3.54%
Other0.02%
Derivatives0.01%

Look-through blends 4 underlying funds; 0.0% of NAV was not looked through and stays direct-classified.

Latest quarter

What changed since the fund's previous filing

2026Q2 vs 2026Q1: 0 new0 exited

Return profile

Chart:

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

Share class1-year3-year5-yearVolWorst fall
+28.85%+61.07%+47.84%12.24%-10.89%
+29.06%+62.01%+50.25%12.26%-10.89%
+28.36%+59.53%12.25%-10.99%

These classes hold the same portfolio, so the 2.48pp spread over 3 years is the cost difference between them — roughly 0.83pp a year — not a difference in what they own.

Cumulative return· Jul 2023 – Apr 2026

May 2026 and Jun 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.

Holdings

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

Issuer%NAVValue
State Street Equity 500 Index II PortfolioSSEYX39.30%$959.36M
State Street Global All Cap Equity ex-U.S. Index PortfolioSSGVX38.30%$934.86M
State Street Small/Mid Cap Equity Index PortfolioSSMHX13.57%$331.19M
State Street SPDR Portfolio Long Term Treasury ETF9.59%$233.94M
State Street Global AdvisorsGVMXX0.15%$3.65M
Showing 5 of 5

Reported price is the fund's own reported value divided by its own reported shares at 2026-06-30 — not a live quote, and not what the fund paid.

Top 10 positions are 100.91% of net assets, top 25 100.91%, across 5 issuers.

See more of this fund's book

More positions with filed share counts, and the quarter-over-quarter change list rather than the largest few — free with an account, no card required.

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