VANGUARD MID-CAP INDEX FUND
VANGUARD INDEX FUNDS · Series S000002844 · 5 share classes
data updated 2026-08-10
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 Q1
| Stocks | 99.64% |
| Cash & short-term | 0.42% |
| Derivatives | -0.01% |
The outer band is exposure held short — written against the portfolio rather than part of it, which is why it sits outside the ring and why the two are never netted into one figure.
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 Feb 2026
| Share class | 1-year | 3-year | 5-year | Vol | Worst fall |
|---|---|---|---|---|---|
| — | — | — | — | — | |
| — | — | — | — | — | |
| — | — | — | — | — | |
| — | — | — | — | — | |
| — | — | — | — | — |
Mar 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 | Value | Shares |
|---|---|---|---|---|
| VRT | Vertiv Holdings CoVRT | 1.03% | $2.03B | 8.1M |
| HWM | Howmet Aerospace IncHWM | 1.01% | $2.00B | 8.7M |
| WDC | Western Digital CorpWDC | 1.00% | $1.98B | 7.3M |
| CEG | Constellation Energy CorpCEG | 0.94% | $1.86B | 6.7M |
| STX | Seagate Technology Holdings PLCSTX | 0.93% | $1.85B | 4.7M |
| PWR | Quanta Services IncPWR | 0.90% | $1.77B | 3.2M |
| SLB | SLB LtdSLB | 0.84% | $1.66B | 32.3M |
| CMI | Cummins IncCMI | 0.81% | $1.61B | 3.0M |
| VLO | Valero Energy CorpVLO | 0.81% | $1.60B | 6.5M |
| PSX | Phillips 66PSX | 0.80% | $1.58B | 8.7M |
Top 10 positions are 9.04% of net assets, top 25 19.70%, across 288 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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