MTCLX
MFS Technology Fund
MFS SERIES TRUST I
Expense ratio1
0.77%
Net assets2
$2.01B
Holdings2
46
Category
US Equity
2025 return3
16.48%

Investment objective & strategy

As of Dec. 29, 2025 · prospectus

Objective. The funds investment objective is to seek capital appreciation.

Strategy. MFS (Massachusetts Financial Services Company, the funds investment adviser)normally invests at least 80% of the funds net assets in securities of issuers principally engaged in offering, using or developing products, processes, or services that will provide or will benefit significantly from technological advances or improvements. MFS considers an issuer to be principally engaged in offering, using or developing products, processes, or services that will provide or will benefit significantly from technological advances and improvements if (i) the issuer is included in an index that is representative of such activities; (ii) a third party has given the issuer an industry or sector classification consistent with such activities; or (iii) at least 50% of any issuers assets, income, sales, or profits are … MFS (Massachusetts Financial Services Company, the funds investment adviser)normally invests at least 80% of the funds net assets in securities of issuers principally engaged in offering, using or developing products, processes, or services that will provide or will benefit significantly from technological advances or improvements. MFS considers an issuer to be principally engaged in offering, using or developing products, processes, or services that will provide or will benefit significantly from technological advances and improvements if (i) the issuer is included in an index that is representative of such activities; (ii) a third party has given the issuer an industry or sector classification consistent with such activities; or (iii) at least 50% of any issuers assets, income, sales, or profits are committed to, or derived from, such activities. These issuers are in such fields as computer systems and software, networking and telecommunications, internet, business services, and electronics. MFS normally invests the funds assets primarily in equity securities. Equity securities include common stocks, depositary receipts, and other securities that represent an ownership interest (or right to acquire an ownership interest) in a company or other issuer. In selecting investments for the fund, MFS is not constrained to any particular investment style. MFS may invest the funds assets in the stocks of companies it believes to have above average earnings growth potential compared to other companies (growth companies) or the stocks of companies it believes are undervalued compared to their perceived worth (value companies). However, companies that benefit from technological advancements and improvements often are growth companies. MFS may invest the funds assets in securities of companies of any size. MFS may invest the funds assets in foreign securities. The fund is a non-diversified fund. This means that MFS may invest a significant percentage of the funds assets in a single issuer or a small number of issuers. MFS may enter into short sales. MFS uses an active bottom-up investment approach to buying and selling investments for the fund. Investments are selected primarily based on fundamental analysis of individual issuers. Quantitative screening tools that systematically evaluate issuers may also be considered. For purposes of the fund's 80% policy, net assets include the amount of any borrowings for investment purposes.

Top holdings

As of Feb. 28, 2026 · N-PORT
SecurityTickerValue% of fund
NVIDIA CORP $202.16M 10.04%
ALPHABET INC CL A $197.29M 9.80%
APPLE INC $187.41M 9.31%
BROADCOM INC $154.60M 7.68%
MICROSOFT CORP $145.20M 7.21%
META PLATFORMS INC CL A $99.33M 4.94%
SHOPIFY INC CL A $80.80M 4.01%
ADV MICRO DEVICE $64.81M 3.22%
LAM RESEARCH CORP $64.20M 3.19%
APPLIED MATERIALS INC $55.40M 2.75%
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
4
Exited
10
Increased
14
Decreased
28
Unchanged
1

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 August 31, 2025 · N-CEN
FirmRole
MASSACHUSETTS FINANCIAL SERVICES COMPANY Adviser

Footnotes

  1. Expense ratio as of December 29, 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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