Vanguard Index Funds - Vanguard Mid-Cap ETF
US ˙ ARCA ˙ US9229086296

SecurityVO / Vanguard Index Funds - Vanguard Mid-Cap ETF
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership732,859 shares
Latest Disclosed Value $ 210,626,188
Advisor Group Holdings, Inc. reports 1.02% decrease in ownership of VO / Vanguard Index Funds - Vanguard Mid-Cap ETF

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 732,859 shares of Vanguard Index Funds - Vanguard Mid-Cap ETF (US:VO) valued at $210,462,448 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 740,392 shares of Vanguard Index Funds - Vanguard Mid-Cap ETF. This represents a change in shares of -1.02% during the quarter. The current value of the position is $57,551,417 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.

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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)
2026-05-15 2026-03-31 13F VANGUARD INDEX FDS MID CAP ETF 922908629 732,859 -7,533 -1.02 210,626 -2.07 0.1794
2026-02-17 2025-12-31 13F VANGUARD INDEX FDS MID CAP ETF 922908629 740,392 7,153 0.98 215,071 0.44 0.3143
2025-11-14 2025-09-30 13F VANGUARD INDEX FDS MID CAP ETF 922908629 733,239 46,901 6.83 214,130 11.69 0.2997
2025-09-04 2025-06-30 13F/A-1 ANGUARD INDEX FDS MID CAP ETF 922908629 686,338 3,298 0.48 191,722 8.45 0.3413
2025-08-13 2025-06-30 13F ANGUARD INDEX FDS MID CAP ETF 922908629 497,869 -185,171 132,991 0.1538
2025-05-12 2025-03-31 13F VANGUARD INDEX FDS MID CAP ETF 922908629 683,040 79,424 13.16 176,784 10.82 0.3939
2025-06-06 2024-12-31 13F/A-1 VANGUARD INDEX FDS MID CAP ETF 922908629 603,616 5,937 0.99 159,529 1.11 0.3581
2025-02-07 2024-12-31 13F VANGUARD INDEX FDS MID CAP ETF 922908629 575,893 -21,786 152,100 0.3880
2024-11-13 2024-09-30 13F VANGUARD INDEX FDS MID CAP ETF 922908629 597,679 -40,791 -6.39 157,780 2.02 0.3558
2024-08-13 2024-06-30 13F VANGUARD INDEX FDS MID CAP ETF 922908629 638,470 -11,746 -1.81 154,651 -4.85 0.3654
2024-05-10 2024-03-31 13F VANGUARD INDEX FDS MID CAP ETF 922908629 650,216 -59,158 -8.34 162,534 -1.54 0.3630
2024-02-12 2023-12-31 13F VANGUARD INDEX FDS MID CAP ETF 922908629 709,374 -140,435 -16.53 165,076 -6.75 0.2889
2023-11-13 2023-09-30 13F VANGUARD INDEX FDS MID CAP ETF 922908629 849,809 159,102 23.03 177,019 16.33 0.2616
2023-08-21 2023-06-30 13F/A-1 VANGUARD INDEX FDS MID CAP ETF 922908629 690,707 32,782 4.98 152,165 9.69 0.2732
2023-08-10 2023-06-30 13F VANGUARD INDEX FDS MID CAP ETF 922908629 742,867 84,942 152,112 0.0412
2023-05-12 2023-03-31 13F VANGUARD INDEX FDS MID CAP ETF 922908629 657,925 -39,233 -5.63 138,720 -2.40 0.2610
2023-02-10 2022-12-31 13F VANGUARD INDEX FDS MID CAP ETF 922908629 697,158 67,736 10.76 142,133 20.08 0.2878
2022-11-14 2022-09-30 13F VANGUARD INDEX FDS MID CAP ETF 922908629 629,422 -20,268 -3.12 118,360 -7.58 0.2705
2022-08-10 2022-06-30 13F VANGUARD INDEX FDS MID CAP ETF 922908629 649,690 -2,680 -0.41 128,070 -14.68 0.2824
2022-05-04 2022-03-31 13F VANGUARD INDEX FDS MID CAP ETF 922908629 652,370 -74,147 -10.21 150,113 -18.90 0.2913
2022-02-03 2021-12-31 13F VANGUARD INDEX FDS MID CAP ETF 922908629 726,517 78,003 12.03 185,097 20.48 0.3503
2021-11-05 2021-09-30 13F VANGUARD INDEX FDS MID CAP ETF 922908629 648,514 50,587 8.46 153,630 8.22 0.3201
2021-08-02 2021-06-30 13F VANGUARD INDEX FDS MID CAP ETF 922908629 597,927 23,171 4.03 141,967 11.54 0.3073
2021-05-13 2021-03-31 13F VANGUARD INDEX FDS MID CAP ETF 922908629 574,756 56,464 10.89 127,277 18.74 0.3062
2021-02-10 2020-12-31 13F VANGUARD INDEX FDS MID CAP ETF 922908629 518,292 -28,664 -5.24 107,192 11.62 0.2862
2020-11-12 2020-09-30 13F VANGUARD INDEX FDS MID CAP ETF 922908629 546,956 18,948 3.59 96,031 10.94 0.2873
2020-08-14 2020-06-30 13F VANGUARD INDEX FDS MID CAP ETF 922908629 528,008 -524,815 -49.85 86,558 26.00 0.2905
2020-05-18 2020-03-31 13F VANGUARD INDEX FDS MID CAP ETF 922908629 1,052,823 1,052,823 68,698 0.2812
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.