先鋒指數基金 - 先鋒中型 ETF
US ˙ ARCA ˙ US9229086296

SecurityVO / Vanguard Index Funds - Vanguard Mid-Cap ETF
InstitutionAssetmark, Inc
Latest Disclosed Ownership269,885 shares
Latest Disclosed Value $ 77,505,544
Assetmark, Inc reports 18.99% decrease in ownership of VO / Vanguard Index Funds - Vanguard Mid-Cap ETF

On May 6, 2026 - Assetmark, Inc filed a 13F-HR form disclosing ownership of 269,885 shares of Vanguard Index Funds - Vanguard Mid-Cap ETF (US:VO) valued at $77,505,574 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 333,134 shares of Vanguard Index Funds - Vanguard Mid-Cap ETF. This represents a change in shares of -18.99% during the quarter. The current value of the position is $21,639,379 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)
2026-05-06 2026-03-31 13F VANGUARD INDEX FDS MID CAP ETF 922908629 269,885 -63,249 -18.99 77,506 -19.84 0.1580
2026-01-23 2025-12-31 13F VANGUARD INDEX FDS MID CAP ETF 922908629 333,134 15,961 5.03 96,682 3.77 0.1972
2025-11-06 2025-09-30 13F VANGUARD INDEX FDS MID CAP ETF 922908629 317,173 -46,619 -12.81 93,166 -8.48 0.1997
2025-08-04 2025-06-30 13F VANGUARD INDEX FDS MID CAP ETF 922908629 363,792 20,143 5.86 101,800 14.54 0.2403
2025-05-06 2025-03-31 13F VANGUARD INDEX FDS MID CAP ETF 922908629 343,649 1,972 0.58 88,875 -1.52 0.2441
2025-02-06 2024-12-31 13F VANGUARD INDEX FDS MID CAP ETF 922908629 341,677 24,243 7.64 90,247 7.76 0.2451
2024-11-01 2024-09-30 13F VANGUARD INDEX FDS MID CAP ETF 922908629 317,434 4,097 1.31 83,749 10.40 0.2399
2024-08-13 2024-06-30 13F VANGUARD INDEX FDS MID CAP ETF 922908629 313,337 1,877 0.60 75,859 -2.52 0.2346
2024-05-07 2024-03-31 13F VANGUARD INDEX FDS MID CAP ETF 922908629 311,460 1,779 0.57 77,821 8.02 0.2530
2024-02-09 2023-12-31 13F VANGUARD INDEX FDS MID CAP ETF 922908629 309,681 3,507 1.15 72,044 13.00 0.2603
2023-10-27 2023-09-30 13F VANGUARD INDEX FDS MID CAP ETF 922908629 306,174 11,782 4.00 63,758 -1.63 0.2549
2023-08-11 2023-06-30 13F VANGUARD INDEX FDS MID CAP ETF MID CAP ETF 922908629 294,392 9,162 3.21 64,813 7.73 0.2542
2023-05-05 2023-03-31 13F VANGUARD INDEX FDS MID CAP ETF MID CAP ETF 922908629 285,230 4,425 1.58 60,161 5.12 0.2487
2023-02-10 2022-12-31 13F VANGUARD INDEX FDS MID CAP ETF 922908629 280,805 -2,681 -0.95 57,231 7.39 0.2481
2022-11-01 2022-09-30 13F VANGUARD INDEX FDS MID CAP ETF 922908629 283,486 2,884 1.03 53,290 -3.58 0.2492
2022-08-03 2022-06-30 13F VANGUARD INDEX FDS MID CAP ETF MID CAP ETF 922908629 280,602 2,388 0.86 55,270 -16.47 0.2478
2022-05-13 2022-03-31 13F VANGUARD INDEX FDS MID CAP ETF MID CAP ETF 922908629 278,214 38,515 16.07 66,170 8.35 0.2769
2022-02-14 2021-12-31 13F VANGUARD INDEX FDS MID CAP ETF MID CAP ETF 922908629 239,699 7,165 3.08 61,068 10.92 0.2509
2021-11-12 2021-09-30 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 232,534 11,162 5.04 55,055 4.78 0.2466
2021-08-16 2021-06-30 13F VANGUARD INDEX FDS MID CAP ETFCUSIP NO ISSUER NA ETF 922908629 221,372 14,288 6.90 52,543 14.63 0.2437
2021-05-14 2021-03-31 13F VANGUARD INDEX FDS ETF 922908629 207,084 9,298 4.70 45,836 12.08 0.2364
2021-02-10 2020-12-31 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 197,786 -541 -0.27 40,895 17.00 0.2279
2020-11-13 2020-09-30 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 198,327 2,940 1.50 34,954 8.00 0.2255
2020-08-11 2020-06-30 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 195,387 -1,474 -0.75 32,364 24.83 0.2315
2020-05-12 2020-03-31 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 196,861 46,798 31.19 25,926 -3.03 0.2195
2020-02-11 2019-12-31 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 150,063 4,807 3.31 26,736 9.83 0.2031
2019-11-13 2019-09-30 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 145,256 141,277 3,550.57 24,343 3,582.75 0.2038
2019-08-14 2019-06-30 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 3,979 -50 -1.24 661 2.48 0.0054
2019-05-14 2019-03-31 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 4,029 180 4.68 645 22.16 0.0058
2019-02-13 2018-12-31 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 3,849 134 3.61 528 -13.58 0.0051
2018-11-13 2018-09-30 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 3,715 81 2.23 611 6.82 0.0056
2018-08-01 2018-06-30 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 3,634 1,169 47.42 572 51.72 0.0056
2018-05-16 2018-03-31 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 2,465 -27,346 -91.73 377 -91.83 0.0039
2018-02-13 2017-12-31 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 29,811 1,126 3.93 4,614 9.86 0.0475
2017-11-08 2017-09-30 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 28,685 460 1.63 4,200 4.58 0.0478
2017-08-14 2017-06-30 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 28,225 2,043 7.80 4,016 10.12 0.0505
2017-09-15 2017-03-31 13F/A-1 VANGUARD INDEX FDS MID CAP ETF ETF 922908629 26,182 681 2.67 3,647 8.64 0.0479
2017-05-08 2017-03-31 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 26,182 681 3,647
2017-09-15 2016-12-31 13F/A-1 VANGUARD INDEX FDS MID CAP ETF ETF 922908629 25,501 1,646 6.90 3,357 9.60 0.0493
2017-02-14 2016-12-31 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 25,501 1,646 3,357
2017-09-14 2016-09-30 13F/A-1 VANGUARD INDEX FDS MID CAP ETF ETF 922908629 23,855 1,278 5.66 3,063 11.46 0.0466
2016-11-04 2016-09-30 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 23,855 1,278 3,063
2017-09-14 2016-06-30 13F/A-1 VANGUARD INDEX FDS MID CAP ETF ETF 922908629 22,577 862 3.97 2,748 4.97 0.0462
2016-08-08 2016-06-30 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 22,577 862 2,748
2017-09-14 2016-03-31 13F/A-1 VANGUARD INDEX FDS MID CAP ETF ETF 922908629 21,715 3,346 18.22 2,618 17.98 0.0457
2016-05-13 2016-03-31 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 21,715 3,346 2,618
2017-09-14 2015-12-31 13F/A-1 VANGUARD INDEX FDS MID CAP ETF ETF 922908629 18,369 1,319 7.74 2,219 13.91 0.0411
2016-02-12 2015-12-31 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 18,369 1,319 2,219
2016-01-05 2015-09-30 13F/A-1 VANGUARD INDEX FDS MID CAP ETF ETF 922908629 17,050 -188,677 -91.71 1,948 -92.57 0.0406
2015-11-10 2015-09-30 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 17,050 1,948
2015-08-13 2015-06-30 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 205,727 192,158 1,416.15 26,206 1,390.67 0.5455
2015-05-12 2015-03-31 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 13,569 13,569 0.00 1,758 0.0374
2015-02-03 2014-12-31 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 0 -58,275 -100.00 0 -100.00
2014-11-10 2014-09-30 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 58,275 22,526 63.01 6,844 61.34 0.1582
2014-08-12 2014-06-30 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 35,749 27,786 348.94 4,242 369.25 0.0903
2014-05-06 2014-03-31 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 7,963 2,692 51.07 904 55.86 0.0220
2014-02-11 2013-12-31 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 5,271 1,954 58.91 580 70.59 0.0137
2014-02-11 2013-09-30 13F/A-1 VANGUARD INDEX FDS MID CAP ETF ETF 922908629 3,317 3,317 340 0.0086
2013-11-14 2013-09-30 13F VANGUARD INDEX FDS MID CAP ETF ETF 922908629 3,317 340 0.0086
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.