S&P 500 Index Master Portfolio
Master Investment Portfolio
Index fund
Expense ratio
Net assets1
$51.91B
Holdings1
506
Category
US Equity
Return

Top holdings

As of March 31, 2026 · N-PORT
SecurityTickerValue% of fund
NVIDIA CORP $3.86B 7.44%
APPLE INC $3.40B 6.54%
MICROSOFT CORP $2.51B 4.83%
AMAZON.COM INC $1.85B 3.57%
ALPHABET INC CL A $1.53B 2.94%
BROADCOM INC $1.34B 2.57%
ALPHABET INC CL C $1.22B 2.36%
META PLATFORMS INC CL A $1.14B 2.19%
TESLA INC $952.83M 1.84%
BERKSHIRE HATH-B $800.82M 1.54%
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
6
Exited
6
Increased
14
Decreased
119
Unchanged
368

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 →

Similar funds

Funds whose portfolios most overlap this one, by weight
FundOverlapNet exp.
JNL S&P 500 Index Fund 99% 0.09%
PGIM Quant Solutions Large-Cap Index Fund · PSIAX, PSICX, PSIFX, PDSIX, PQSIX 98% 0.12%
iShares Core S&P 500 ETF · IVV 98% 0.03%
View all similar funds →

Advisers

As of December 31, 2025 · N-CEN
FirmRole
BlackRock Fund Advisors Adviser

Footnotes

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

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