Sensible Investor

Immutable verification record

VANGUARD MID-CAP INDEX FUND

Run 7f35c13d-dab5-4663-b04b-b5d91b2d68a2 · portfolio period 2026-03-31 · captured 2026-07-27T02:24:38.043Z

This is the permanent record of what our July 27, 2026 data run computed for Vanguard Mid-Cap Index Fund, and the exact SEC documents every number came from — it exists so anyone can check us.

Current interpretation · methodology 1.5

How to read this prior-run record now

24.6% of this portfolio matches the Russell 1000 Value index, which costs $180 a year per $100,000 to own outright. This fund charges $50 a year.

This interpretation is computed under the current methodology and is not inserted into the immutable record below.

Cite these figures

Each snippet includes the figure’s source-event date and immutable verification URL.

Best-fit active share

Sensible Investor, “VANGUARD MID-CAP INDEX FUND — best-fit active share,” 75.4% versus the Russell 1000 Value index, fund portfolio as of 2026-03-31; measured against the filed holdings of iShares Russell 1000 Value ETF (IWD), as of 2026-03-31. https://sensible-investor.com/registry/vimax/as-of/7f35c13d-dab5-4663-b04b-b5d91b2d68a2

VIMAX filed expense ratio

Sensible Investor, “VANGUARD MID-CAP INDEX FUND — filed expense ratio,” 0.05% for VIMAX, as of 2025-12-31. https://sensible-investor.com/registry/vimax/as-of/7f35c13d-dab5-4663-b04b-b5d91b2d68a2

VIMAX fee per active unit

Sensible Investor, “VANGUARD MID-CAP INDEX FUND — fee per unit of active management,” 0.07% using the VIMAX expense ratio as of 2025-12-31 and fund portfolio as of 2026-03-31. https://sensible-investor.com/registry/vimax/as-of/7f35c13d-dab5-4663-b04b-b5d91b2d68a2

Active share by comparison index

Holdings difference for every comparison calculated in this run.
IndexActive shareHoldings evidenceIdentifier match
the Russell 1000 Value index75.4%measured against the filed holdings of iShares Russell 1000 Value ETF (IWD), as of 2026-03-3182.0%
the S&P 50083.4%measured against the filed holdings of iShares Core S&P 500 ETF (IVV), as of 2026-03-3191.5%
the Russell 1000 index83.4%measured against the filed holdings of iShares Russell 1000 ETF (IWB), as of 2026-03-3197.2%
the total US market83.7%measured against the filed holdings of Vanguard Total Stock Market ETF (VTI), as of 2026-03-31100.0%
the Russell 1000 Growth index91.1%measured against the filed holdings of iShares Russell 1000 Growth ETF (IWF), as of 2026-03-3138.8%
the Russell 2000 index99.8%measured against the filed holdings of iShares Russell 2000 ETF (IWM), as of 2026-03-310.2%
the S&P MidCap 40099.8%measured against the filed holdings of iShares Core S&P Mid-Cap ETF (IJH), as of 2026-03-310.2%
the S&P SmallCap 600100.0%measured against the filed holdings of iShares Core S&P Small-Cap ETF (IJR), as of 2026-03-310.0%

Filed expense ratios by share class

Each fee is tied to its filed SEC source and period.
Share classExpense ratioFiling periodSEC document
VIMAX (Vanguard Mid-Cap Index Fund)0.05%2025-12-31Open SEC expense filing
VIMSX (Vanguard Mid-Cap Index Fund)0.17%2025-12-31Open SEC expense filing
VMCIX (Vanguard Mid-Cap Index Fund)0.03%2025-12-31Open SEC expense filing
VMCPX (Vanguard Mid-Cap Index Fund)0.02%2025-12-31Open SEC expense filing
VO (Vanguard Mid-Cap Index Fund)0.03%2025-12-31Open SEC expense filing

Match rates

How much of the fund filing could be matched to comparison holdings. A benchmark proxy is not compared with itself.
Fund identifier match82.0%
the Russell 1000 Value index82.0%
the S&P 50091.5%
the Russell 1000 index97.2%
the total US market100.0%
the Russell 1000 Growth index38.8%
the Russell 2000 index0.2%
the S&P MidCap 4000.2%
the S&P SmallCap 6000.0%

Fee-drag windows

Dollar fee drag from licensed return windows; the lowest-cost control class is omitted rather than compared with itself, and missing history remains explicit.
Share classWindowFee dragWindow dates
VIMAX10 years$1,3052016-07-25 to 2026-07-24
VIMAX20 years$4,8592006-07-24 to 2026-07-24
VIMAX30 yearsproxy history begins 2000 — no full 30-year windowProxy history begins 2000-05-26
VIMSX10 years$4,4172016-07-25 to 2026-07-24
VIMSX20 years$16,3472006-07-24 to 2026-07-24
VIMSX30 yearsproxy history begins 2000 — no full 30-year windowProxy history begins 2000-05-26
VMCIX10 years$7842016-07-25 to 2026-07-24
VMCIX20 years$2,9202006-07-24 to 2026-07-24
VMCIX30 yearsproxy history begins 2000 — no full 30-year windowProxy history begins 2000-05-26
VMCPX10 years$5232016-07-25 to 2026-07-24
VMCPX20 years$1,9492006-07-24 to 2026-07-24
VMCPX30 yearsproxy history begins 2000 — no full 30-year windowProxy history begins 2000-05-26
VO10 years$7842016-07-25 to 2026-07-24
VO20 years$2,9202006-07-24 to 2026-07-24
VO30 yearsproxy history begins 2000 — no full 30-year windowProxy history begins 2000-05-26

Check it yourself

  1. Open the fund’s linked SEC holdings filing and, for fees, the linked SEC expense filing in the table above.
  2. Find each security identifier and portfolio weight in the holdings filing, and the net annual operating expense for the relevant share class in its expense filing.
  3. Recalculate the comparison using the active-share formula and portfolio rules.
Raw record (JSON)

Download this record as JSON

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