MML Equity Index Fund
MML SERIES INVESTMENT FUND
Index fund
Expense ratio
Net assets1
$643.40M
Holdings1
504
Category
US Equity
Return

Investment objective & strategy

As of Dec. 19, 2025 · prospectus

Strategy. The Fund intends to be diversified in approximately the same proportion as the Index is diversified. The Fund may become non-diversified, as defined in the Investment Company Act of 1940, as amended (the 1940 Act), solely as a result of a change in relative market capitalization or index weighting of one or more constituents of the Index. In these circumstances, the Fund may hold larger positions in a smaller number of issuers than a diversified fund. Shareholder approval will not be sought if the Fund becomes non-diversified due solely to a change in the relative market capitalization or index weighting of one or more constituents of the Index. The Fund intends to be diversified in approximately the same proportion as the Index is diversified. The Fund may become non-diversified, as defined in the Investment Company Act of 1940, as amended (the 1940 Act), solely as a result of a change in relative market capitalization or index weighting of one or more constituents of the Index. In these circumstances, the Fund may hold larger positions in a smaller number of issuers than a diversified fund. Shareholder approval will not be sought if the Fund becomes non-diversified due solely to a change in the relative market capitalization or index weighting of one or more constituents of the Index.

Top holdings

As of March 31, 2026 · N-PORT
SecurityTickerValue% of fund
NVIDIA CORP $48.21M 7.49%
APPLE INC $42.38M 6.59%
MICROSOFT CORP $31.27M 4.86%
AMAZON.COM INC $23.14M 3.60%
ALPHABET INC CL A $19.04M 2.96%
BROADCOM INC $16.70M 2.59%
ALPHABET INC CL C $15.24M 2.37%
META PLATFORMS INC CL A $14.23M 2.21%
TESLA INC $11.89M 1.85%
BERKSHIRE HATH-B $10.00M 1.55%
View all holdings →

Allocation by sector

As of March 31, 2026 · N-PORT
View portfolio breakdown →

Portfolio moves

Dec 31, 2025 → Mar 31, 2026
Opened
7
Exited
9
Increased
8
Decreased
260
Unchanged
230

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.

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Similar funds

Funds whose portfolios most overlap this one, by weight
FundOverlapNet exp.
Transamerica S&P 500 Index VP 99% 0.12%
MM S&P 500 Index Fund · MIEAX, MMINX, MMIEX, MIEYX, MIEZX, MMIZX, MMFFX 99% 0.14%
SPDR S&P 500 ETF TRUST 99%
View all similar funds →

Advisers

As of December 31, 2025 · N-CEN
FirmRole
MML Investment Advisers, LLC Adviser
BlackRock Investment Management, LLC Sub-adviser

Footnotes

  1. Net assets and holdings count as of March 31, 2026, from the fund's N-PORT filing.

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