BNY Mellon Stock Index Fund, Inc.
U.S. stock index fund · tracks S&P 500 Index
As of its 2026 Q2 report, BNY Mellon Stock Index Fund, Inc. held 506 positions with $3.21B in net assets. Its ten largest holdings made up 36.1% of the fund. Its share classes cost 0.27%–0.52% a year. Over the 12 months to May 2026, it returned 29.5%, with dividends reinvested. In 2026 Q2 it added 9 new positions and exited 9.
The fund seeks to match the total return of the S&P 500 Index.
The fund holds all 500 stocks in the S&P 500 Index in proportion to their market-capitalization weights, with the aim of tracking the index's total return. Because the fund carries expenses, its performance will lag the index slightly. The fund is non-diversified to the extent the S&P 500 Index itself is non-diversified, and may concentrate up to 25% or more of assets in a single industry or sector in line with index weightings.
What you own
| Company | Weight | Value | Shares | Reported price |
|---|---|---|---|---|
NVDANVIDIA CORP | 7.44% | $239.11M | 1.2M | $200.09 |
AAPLAPPLE INC | 6.53% | $209.70M | 724.7K | $289.36 |
MSFTMICROSOFT CORP | 4.25% | $136.71M | 366.5K | $373.02 |
AMZNAMAZON.COM INC | 3.58% | $115.10M | 482.9K | $238.34 |
GOOGLALPHABET INC | 3.22% | $103.44M | 289.4K | $357.37 |
AVGOBROADCOM INC | 2.75% | $88.25M | 233.6K | $377.75 |
GOOGALPHABET INC | 2.56% | $82.34M | 233.0K | $353.33 |
2.00% | $64.22M | 55.6K | $1,154.29 | |
1.90% | $61.02M | 108.3K | $563.29 | |
TSLATESLA INC | 1.82% | $58.41M | 138.9K | $420.60 |
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.
The 200 largest of 506 holdings, with the share counts as filed, open with a free account.
What the fund is made of
Percentages are of fund net assets. Rounding, liabilities and short positions can make totals differ from 100%.
| Stocks | 98.98% |
| Cash & short-term | 1.14% |
| Derivatives | 0.01% |
Derivatives are shown at market value, not notional exposure.
By sector
- Information Technology
- 37.0%
- Financials
- 11.4%
- Communication Services
- 9.6%
- Consumer Discretionary
- 9.1%
- 10 other sectors
- 32.9%
- Information Technology
- 37.0%
- Financials
- 11.4%
- Communication Services
- 9.6%
- Consumer Discretionary
- 9.1%
- Health Care
- 8.6%
- Industrials
- 8.3%
- Consumer Staples
- 4.5%
- Energy
- 2.9%
- Utilities
- 2.2%
- International
- 2.1%
- Real Estate
- 1.8%
- Materials
- 1.4%
- Cash
- 1.1%
- Other
- 0.0%
How it has done
C000005028 share class · total returns with dividends reinvested
Volatility over the last 12 months: 13.14%. Past returns are a record, not a forecast.
Jun 2026 has been filed since the trailing figures were struck, so it is not in the table above or the curve — every figure here shares one cut-off, which is what makes them comparable with other funds.
This fund changed legal form during the period shown. The history above is continuous — it spans both eras, and the change is not a gap in reporting.
Fees & fund details
BNY Mellon Stock Index Fund, Inc. is a U.S. equity index fund that tracks the S&P 500 Index. 21% of BNY Mellon Stock Index Fund, Inc.’s stock holdings are in companies whose revenue grew in the top quartile of U.S. companies over the last five fiscal years (covering 97% of the fund’s equity).
- Asset class
- Equity
- Region
- United States
- Management
- Index (passive)
- Fund type
- Open-end fund
- Expense ratio, by class
- 0.27% – 0.52%
- Portfolio turnover
- 2.70% a year · as of 2026 Q2
Turnover is how much of the portfolio was replaced in a year.
Classified from what the fund holds, not from its name · 2026 Q2. The summary is a paraphrase of the prospectus; the objective is verbatim.
What changed this quarter
Positions that entered or left the fund since its previous filing. Positions that were only resized are not listed.
9 new· the largest 8
9 exited· the largest 8
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