FIDJX
Fidelity SAI Sustainable Sector Fund
Fidelity Summer Street Trust
Expense ratio1
0.44%
Net assets2
$676.21M
Holdings2
243
Category
US Equity
2025 return3
17.57%

Investment objective & strategy

As of Oct. 30, 2025 · prospectus

Objective. Fidelity SAI Sustainable Sector Fund seeks long-term growth of capital.

Strategy. Normally investing primarily in equity securities.Normally investing at least 80% of assets in securities of companies that Fidelity Management & Research Company LLC (FMR) (the Adviser) believes have proven or improving sustainability practices based on an evaluation of such companies' individual environmental, social and governance (ESG) profile. Effective December 11, 2025, derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives. Using a quantitative portfolio construction and optimization model to create a sector neutral portfolio of securities that is designed to capitalize on the Adviser's proprietary … Normally investing primarily in equity securities.Normally investing at least 80% of assets in securities of companies that Fidelity Management & Research Company LLC (FMR) (the Adviser) believes have proven or improving sustainability practices based on an evaluation of such companies' individual environmental, social and governance (ESG) profile. Effective December 11, 2025, derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives. Using a quantitative portfolio construction and optimization model to create a sector neutral portfolio of securities that is designed to capitalize on the Adviser's proprietary ESG ratings process.Using the Adviser's proprietary ESG ratings process to evaluate the current state of an issuer's sustainability practices using a data-driven framework that includes both proprietary and third-party data, and also provide a qualitative forward-looking assessment of an issuer's sustainability outlook provided by the Adviser's fundamental research analysts and ESG team. The Adviser's ESG ratings of issuers are derived from multiple factors, including an issuer's environmental profile, which may include, but is not limited to, carbon and toxic emissions, water management, waste management, vulnerability to the physical impacts of climate change, and research and investment into products, services, and energies that reduce emissions and/or provide opportunities to transition to less carbon-intensive products or operations. An assessment of an issuer's social profile includes, but is not limited to, its approach to diversity and inclusion, human capital management, data privacy, product safety and human rights. With respect to governance, the independence and diversity of an issuer's board, its compensation practices and board oversight of critical ESG issues are considered as part of the assessment. These factors are weighted based on how material the Adviser believes each factor is to an issuer's financial outlook, and not all factors may be applicable to all issuers.Investing in securities of domestic and foreign issuers.Employing sustainable investing exclusion criteria to avoid investments in issuers that are directly engaged in, and/or derive significant revenue from, certain industries. Please see "Fund Basics - Investment Details - Sustainable Investing Exclusions" for additional information.

Top holdings

As of Feb. 28, 2026 · N-PORT
SecurityTickerValue% of fund
NVIDIA CORP $51.80M 7.66%
APPLE INC $44.72M 6.61%
ALPHABET INC CL A $42.78M 6.33%
MICROSOFT CORP $34.07M 5.04%
AMAZON.COM INC $26.43M 3.91%
BROADCOM INC $15.12M 2.24%
MASTERCARD INC CL A $13.14M 1.94%
TESLA INC $11.75M 1.74%
EXXON MOBIL CORP $11.17M 1.65%
Fidelity Cash Central Fund $9.42M 1.39%
View all holdings →

Allocation by sector

As of February 28, 2026 · N-PORT
View portfolio breakdown →

Portfolio moves

Nov 30, 2025 → Feb 28, 2026
Opened
48
Exited
61
Increased
146
Decreased
12
Unchanged
37

How many positions this fund opened, exited, grew, trimmed, or left unchanged between its two most recent N-PORT snapshots — net changes between point-in-time reports, not a trade log.

View portfolio moves →

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Advisers

As of May 31, 2025 · N-CEN
FirmRole
FMR Investment Management (UK) Limited Sub-adviser
Fidelity Management & Research (Japan) Limited Sub-adviser
Fidelity Management & Research (Hong Kong) Limited Sub-adviser
Fidelity Management & Research Company LLC Adviser

Footnotes

  1. Expense ratio as of October 30, 2025, from the fund's prospectus.
  2. Net assets and holdings count as of February 28, 2026, from the fund's N-PORT filing.
  3. Total return for calendar year 2025, before tax and after fund expenses. Computed by compounding the twelve monthly total returns the fund reported in its SEC N-PORT filings for 2025 (the latest prospectus does not yet chart this year).

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