VANGUARD S&P MID-CAP 400 INDEX FUND
VANGUARD ADMIRAL FUNDS · 2 share classes
Fund classification
Classified from what the fund holds · as of 2026 Q2
VANGUARD S&P MID-CAP 400 INDEX FUND is a U.S. equity index ETF that tracks the S&P MidCap 400 Index. 18% of IVOO’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
- ETF
Fund profile
As filed in the prospectus · 2026 Q2
Vanguard S&P Mid-Cap 400 ETF, an exchange-traded share class of Vanguard S&P Mid-Cap 400 Index Fund (the Fund), seeks to track the performance of a benchmark index that measures the investment return of mid-capitalization stocks in the United States.
The fund tracks the S&P MidCap 400 Index through full replication, holding all or substantially all of the index constituents in the same proportions. Because the fund holds each stock in approximately the same weight as the index, its performance will closely track the index.
| Share class | Expense ratio |
|---|---|
| IVOO | 0.07% |
| VSPMX | 0.03% |
Portfolio turnover 15.00% · as of 2026 Q2
Allocation
Asset groups · long / short shown separately, never netted · 2026 Q2
| Stocks | 99.84% |
| Cash & short-term | 0.36% |
| Derivatives | 0.00% |
Derivatives are shown at market value, not notional exposure.
Sector allocation
The same holdings as Allocation above, grouped by market sector instead of asset type · as of 2026 Q2
| Industrials | 25.8% |
| Information Technology | 15.9% |
| Financials | 14.1% |
| Consumer Discretionary | 10.6% |
| 10 smaller | 33.6% |
Government, Securitized and Cash are non-corporate buckets; International is foreign holdings we don’t sector-classify, and Other is the residual (held funds, unresolved names).
Portfolio growth profile
How much of the fund’s stock holdings are in fast-growing companies · as of 2026 Q2
Share of the fund’s equity (by value) in companies whose trailing five-year revenue — or net-income — growth ranks in the top 25% of U.S. public companies. Foreign and newly-listed holdings are excluded, so the figure covers only part of the book. From SEC filings — not investment advice. How we measure this.
Latest quarter
What changed since the fund's previous filing
Return profile
Total return as filed — price change plus distributions reinvested · trailing figures to Apr 2026
| Share class | 1-year | 3-year | 5-year | Vol | Worst fall |
|---|---|---|---|---|---|
| +29.40% | +52.72% | +43.60% | 11.69% | -14.78% | |
| +29.45% | +52.85% | +43.83% | 11.69% | -14.77% |
These classes hold the same portfolio, so the 0.24pp spread over 5 years is the cost difference between them — roughly 0.05pp a year — not a difference in what they own.
May 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.
Holdings
By % of NAV · equity positions carry filed share counts · every resolvable issuer links to its company page
| Ticker | Issuer | %NAV | Reported price | Value | Shares |
|---|---|---|---|---|---|
| FLEX | Flex LtdFLEX | 1.58% | $150.78 | $88.46M | 586.7K |
| TWLO | Twilio IncTWLO | 0.82% | $190.64 | $46.12M | 241.9K |
| FTI | TechnipFMC PLCFTI | 0.79% | $68.42 | $44.16M | 645.5K |
| CW | Curtiss-Wright CorpCW | 0.79% | $747.61 | $43.99M | 58.8K |
| NVT | nVent Electric PLCNVT | 0.77% | $166.99 | $43.00M | 257.5K |
| STRL | Sterling Infrastructure IncSTRL | 0.75% | $860.84 | $42.20M | 49.0K |
| XPO | XPO IncXPO | 0.71% | $214.25 | $40.05M | 186.9K |
| P | Everpure IncP | 0.71% | $79.51 | $39.80M | 500.5K |
| ILMN | Illumina IncILMN | 0.71% | $162.96 | $39.76M | 244.0K |
| UTHR | United Therapeutics CorpUTHR | 0.68% | $556.82 | $38.26M | 68.7K |
Reported price is the fund's own reported value divided by its own reported shares at 2026-05-31 — not a live quote, and not what the fund paid.
Top 10 positions are 8.32% of net assets, top 25 17.58%, across 402 issuers.
See more of this fund's book
More positions with filed share counts, and the quarter-over-quarter change list rather than the largest few — free with an account, no card required.
Sign in free