SecurityUS9229087104 / VANGUARD 500 INDEX FUND VANGUARD 500 INDEX ADM
InstitutionArvest Bank Trust Division
Latest Disclosed Ownership29,221 shares
Latest Disclosed Value $ 17,605,584
Arvest Bank Trust Division reports 0.28% decrease in ownership of US9229087104 / VANGUARD 500 INDEX FUND VANGUARD 500 INDEX ADM

On May 13, 2026 - Arvest Bank Trust Division filed a 13F-HR form disclosing ownership of 29,221 shares of VANGUARD 500 INDEX FUND VANGUARD 500 INDEX ADM (US:US9229087104) valued at $17,605,584 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 29,302 shares of VANGUARD 500 INDEX FUND VANGUARD 500 INDEX ADM. This represents a change in shares of -0.28% during the quarter.

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)
2026-05-13 2026-03-31 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 29,221 -81 -0.28 17,606 -4.91 0.9568
2026-02-09 2025-12-31 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 29,302 -395 -1.33 18,515 1.00 1.0025
2025-11-07 2025-09-30 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 29,697 -1,040 -3.38 18,332 4.16 1.0168
2025-08-08 2025-06-30 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 30,737 -2,075 -6.32 17,600 3.60 1.0267
2025-05-14 2025-03-31 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 32,812 -547 -1.64 16,988 -6.17 1.0743
2025-02-13 2024-12-31 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 33,359 -1,294 -3.73 18,107 -1.73 1.0913
2024-11-25 2024-09-30 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 34,653 6,697 23.96 18,426 65.75 1.0620
2021-11-12 2021-09-30 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 27,956 -135 -0.48 11,116 -0.24 0.6236
2021-08-19 2021-06-30 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 28,091 1,814 6.90 11,143 15.64 0.6141
2021-04-13 2021-03-31 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 26,277 -1,170 -4.26 9,636 1.29 0.5607
2021-02-17 2020-12-31 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 27,447 2,462 9.85 9,513 22.70 0.5910
2020-11-30 2020-09-30 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 24,985 -5,450 -17.91 7,753 -10.97 0.5553
2020-08-21 2020-06-30 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 30,435 21,292 232.88 8,708 299.27 0.6446
2020-04-14 2020-03-31 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 9,143 218 2.44 2,181 -18.04 0.2018
2020-01-14 2019-12-31 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 8,925 -2,709 -23.29 2,661 -16.74 0.1709
2019-10-18 2019-09-30 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 11,634 4,645 66.46 3,196 68.48 0.2192
2019-07-19 2019-06-30 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 6,989 549 8.52 1,897 12.58 0.1296
2019-04-12 2019-03-31 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 6,440 -256 -3.82 1,685 8.78 0.1166
2019-01-18 2018-12-31 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 6,696 -327 -4.66 1,549 -18.04 0.1234
2018-10-30 2018-09-30 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 7,023 363 5.45 1,890 13.11 0.1282
2018-07-18 2018-06-30 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 6,660 356 5.65 1,671 8.65 0.1190
2018-05-11 2018-03-31 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 6,304 141 2.29 1,538 1.12 0.1090
2018-01-22 2017-12-31 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 6,163 472 8.29 1,521 14.88 0.1063
2017-10-06 2017-09-30 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 5,691 -77 -1.33 1,324 2.56 0.0944
2017-07-12 2017-06-30 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 5,768 -181 -3.04 1,291 -0.46 0.0979
2017-04-17 2017-03-31 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 5,949 -134 -2.20 1,297 3.18 0.1017
2017-01-09 2016-12-31 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 6,083 -151 -2.42 1,257 0.72 0.1007
2016-10-07 2016-09-30 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 6,234 -745 -10.67 1,248 -7.69 0.1037
2016-08-16 2016-06-30 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 6,979 1,285 22.57 1,352 24.95 0.1163
2016-04-27 2016-03-31 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 5,694 5 0.09 1,082 0.93 0.0916
2016-02-08 2015-12-31 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 5,689 225 4.12 1,072 10.74 0.0933
2015-10-13 2015-09-30 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 5,464 -750 -12.07 968 -18.17 0.0875
2015-07-07 2015-06-30 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 6,214 1,675 36.90 1,183 36.61 0.1001
2015-04-21 2015-03-31 13F/A-2 VANGUARD INDEX FDS 500INDEX ADMIR 922908710 4,539 4,539 866 0.0741
2015-04-21 2015-03-31 13F VANGUARD INDEX FDS 500INDEX ADMIR 922908710 5,060 969 0.0849
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.