Vanguard Index Funds - Vanguard Mid-Cap Index Fund Admiral Class
US ˙ MUTF ˙ US9229086452

SecurityVIMAX / Vanguard Index Funds - Vanguard Mid-Cap Index Fund Admiral Class
InstitutionGrey Fox Wealth Advisors, LLC
Latest Disclosed Ownership4,344 shares
Latest Disclosed Value $ 1,545,523
Grey Fox Wealth Advisors, LLC reports 3.01% increase in ownership of VIMAX / Vanguard Index Funds - Vanguard Mid-Cap Index Fund Admiral Class

On April 21, 2026 - Grey Fox Wealth Advisors, LLC filed a 13F-HR form disclosing ownership of 4,344 shares of Vanguard Index Funds - Vanguard Mid-Cap Index Fund Admiral Class (US:VIMAX) valued at $1,545,523 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 4,217 shares of Vanguard Index Funds - Vanguard Mid-Cap Index Fund Admiral Class. This represents a change in shares of 3.01% during the quarter. The current value of the position is $1,344,034 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-04-21 2026-03-31 13F VANGUARD MID CAP INDEX ADM Mutual Fund 922908645 4,344 127 3.01 1,546 1.98 0.2509
2026-02-12 2025-12-31 13F Vanguard Mid-Cap Index Fund - Admiral Class Mutual Fund 922908645 4,217 -4,731 -52.87 1,515 -20.72 0.3102
2025-10-29 2025-09-30 13F Vanguard Mid Cap Index Admiral Mutual Fund 922908645 8,948 4,877 119.80 1,912 35.44 0.3897
2025-08-06 2025-06-30 13F VANGUARD MID CAP INDEX ADM Mutual Fund 922908645 4,071 944 30.19 1,412 40.96 0.3365
2025-05-02 2025-03-31 13F Vanguard Mid-Cap Index Fund - Admiral Class Mutual Fund 922908645 3,127 19 0.61 1,002 -1.48 0.2672
2025-02-11 2024-12-31 13F Vanguard Mid Cap Index Admiral Mutual Fund 922908645 3,108 128 4.30 1,016 4.42 0.2786
2024-10-22 2024-09-30 13F Vanguard Mid Cap Index Admiral Mutual Fund 922908645 2,980 1,357 83.61 974 100.21 0.2714
2024-07-30 2024-06-30 13F Vanguard Mid-Cap Index Fund - Admiral Class Mutual Fund 922908645 1,623 39 2.46 487 -0.82 0.1711
2024-04-11 2024-03-31 13F Vanguard Mid-Cap Index Fund - Admiral Class Mutual Fund 922908645 1,584 -547 -25.67 490 -20.07 0.1844
2024-01-18 2023-12-31 13F Vanguard Mid-Cap Index Fund Mutual Fund 922908645 2,131 36 1.72 614 13.52 0.2668
2023-10-24 2023-09-30 13F Vanguard Mid-Cap Index Fund;Admiral Mutual Fund 922908645 2,095 89 4.44 540 -1.28 0.2709
2023-08-03 2023-06-30 13F Vanguard Mid-Cap Index Fund;Admiral Mutual Fund 922908645 2,006 2,006 547 0.2816
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.