Investment objective & strategy
As of April 29, 2025 · prospectusObjective. The Fund seeks to track the performance of a benchmark index that measures the investment return of mid-capitalization stocks.
Strategy. The Fund employs an indexing investment approach designed to track the performance of the CRSP US Mid Cap Index (the Index), a broadly diversified index of stocks of mid-size U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index. The Fund employs an indexing investment approach designed to track the performance of the CRSP US Mid Cap Index (the Index), a broadly diversified index of stocks of mid-size U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.
Top holdings
As of March 31, 2026 · N-PORT| Security | Ticker | Value | % of fund |
|---|---|---|---|
| VERTIV HOLDINGS CO | — | $2.03B | 1.03% |
| HOWMET AEROSPACE INC | — | $2.00B | 1.01% |
| WESTERN DIGITAL CORP | — | $1.98B | 1.00% |
| CONSTELLATION ENERGY CORP | — | $1.86B | 0.94% |
| SEAGATE TECHNOLO | — | $1.85B | 0.93% |
| QUANTA SVCS INC | — | $1.77B | 0.89% |
| SLB LTD | — | $1.66B | 0.84% |
| CUMMINS INC | — | $1.61B | 0.81% |
| VALERO ENERGY CORP | — | $1.60B | 0.80% |
| PHILLIPS 66 | — | $1.58B | 0.80% |
Portfolio moves
Dec 31, 2025 → Mar 31, 2026How 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.
Similar funds
Funds whose portfolios most overlap this one, by weight| Fund | Overlap | Net exp. |
|---|---|---|
| MID-CAP INDEX PORTFOLIO | 100% | 0.17% |
| iShares Morningstar Mid-Cap ETF · IMCB | 65% | 0.04% |
| VANGUARD MID-CAP VALUE INDEX FUND · VMVIX, VOE, VMVAX | 60% | 0.05% |
Advisers
| Firm | Role |
|---|---|
| The Vanguard Group, Inc. | Adviser |
Footnotes
- Expense ratio as of February 2, 2026, from the fund's prospectus.
- Net assets and holdings count as of March 31, 2026, from the fund's N-PORT filing.
- Total return for calendar year 2025, before tax and after fund expenses. Computed by compounding the twelve monthly total returns the fund reported in its SEC N-PORT filings for 2025 (the latest prospectus does not yet chart this year).
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