VANGUARD MID-CAP INDEX FUND
VANGUARD INDEX FUNDS · Series S000002844 · 5 share classes
data updated 2026-09-08
Fund profile
As filed in the prospectus · 2026 Q2
Vanguard Mid-Cap Index Fund (the Fund) seeks to track the performance of a benchmark index that measures the investment return of mid-capitalization stocks.
The fund tracks the CRSP US Mid Cap Index by holding all or substantially all of its constituent stocks in the same proportions as the index. Because the fund invests in the full index, its performance will closely match the target index.
| Share class | Expense ratio |
|---|---|
| VIMSX | 0.17% |
| VIMAX | 0.05% |
| VMCIX | 0.03% |
| VO | 0.03% |
| VMCPX | 0.02% |
Portfolio turnover 16.00% · as of 2026 Q2
Allocation
Asset groups · long / short shown separately, never netted · 2026 Q2
| Stocks | 99.68% |
| Cash & short-term | 0.53% |
| Derivatives | 0.00% |
Derivatives are shown at market value, not notional exposure.
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 |
|---|---|---|---|---|---|
| +22.44% | +54.38% | +43.02% | 11.83% | -12.66% | |
| +22.58% | +54.92% | +43.88% | 11.81% | -12.65% | |
| +22.59% | +54.96% | +43.96% | 11.81% | -12.64% | |
| +22.60% | +54.98% | +43.98% | 11.82% | -12.64% | |
| +22.60% | +55.02% | +44.03% | 11.81% | -12.64% |
These classes hold the same portfolio, so the 1.01pp spread over 5 years is the cost difference between them — roughly 0.20pp a year — not a difference in what they own.
May 2026 and Jun 2026 have been filed since the trailing figures were struck, so they are 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 |
|---|---|---|---|---|---|
| VRT | Vertiv Holdings CoVRT | 1.22% | $334.82 | $2.74B | 8.2M |
| WDC | Western Digital CorpWDC | 1.06% | $638.72 | $2.39B | 3.7M |
| STX | Seagate Technology Holdings PLCSTX | 1.05% | $965.00 | $2.34B | 2.4M |
| PWR | Quanta Services IncPWR | 1.04% | $720.04 | $2.34B | 3.3M |
| HWM | Howmet Aerospace IncHWM | 1.04% | $268.86 | $2.33B | 8.7M |
| CMI | Cummins IncCMI | 0.95% | $713.21 | $2.13B | 3.0M |
| DDOG | Datadog IncDDOG | 0.83% | $260.36 | $1.87B | 7.2M |
| BE | Bloom Energy CorpBE | 0.79% | $302.70 | $1.77B | 5.9M |
| CEG | Constellation Energy CorpCEG | 0.78% | $248.37 | $1.75B | 7.0M |
| HOOD | Robinhood Markets IncHOOD | 0.77% | $100.28 | $1.72B | 17.1M |
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.
Top 10 positions are 9.54% of net assets, top 25 20.11%, across 281 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.
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