Vanguard Index Funds - Vanguard Total Stock Market ETF
GB ˙ LSE ˙ US9229087690
365,90 $ ↓ -7,85 (-2,10%)
2026-06-05
DEL PRIS
SecurityGB:0LOS / Vanguard Index Funds - Vanguard Total Stock Market ETF
InstitutionO'Brien Wealth Partners LLC
Latest Disclosed Ownership130,797 shares
Latest Disclosed Value $ 43,852,226
O'Brien Wealth Partners LLC reports 0.89% decrease in ownership of 0LOS / Vanguard Index Funds - Vanguard Total Stock Market ETF

On January 22, 2026 - O'Brien Wealth Partners LLC filed a 13F-HR form disclosing ownership of 130,797 shares of Vanguard Index Funds - Vanguard Total Stock Market ETF (GB:0LOS) valued at $44,107,364 USD as of December 31, 2025. The entity filed a previous 13F-HR on October 22, 2025 disclosing 131,971 shares of Vanguard Index Funds - Vanguard Total Stock Market ETF. This represents a change in shares of -0.89% during the quarter. The current value of the position is $47,857,968 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)
2026-01-22 2025-12-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 130,797 -1,174 -0.89 43,852 1.26 5.7988
2025-10-22 2025-09-30 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 131,971 -466 -0.35 43,309 7.59 5.8657
2025-07-09 2025-06-30 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 132,437 -2,353 -1.75 40,252 8.65 6.3175
2025-04-28 2025-03-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 134,790 -2,238 -1.63 37,046 -6.71 6.8978
2025-01-28 2024-12-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 137,028 15,328 12.59 39,712 15.24 7.1561
2024-10-23 2024-09-30 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 121,700 -1,283 -1.04 34,460 4.74 6.7590
2024-07-22 2024-06-30 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 122,983 -43,537 -26.15 32,899 -23.98 7.3950
2024-04-18 2024-03-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 166,520 -5,256 -3.06 43,278 6.21 10.0097
2024-01-25 2023-12-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 171,776 -3,880 -2.21 40,749 9.21 10.6386
2023-10-24 2023-09-30 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 175,656 -4,667 -2.59 37,311 -6.07 10.7025
2023-08-07 2023-06-30 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 180,323 -309 -0.17 39,722 7.74 11.6917
2023-05-08 2023-03-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 180,632 -5,688 -3.05 36,867 3.49 11.6197
2023-02-10 2022-12-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 186,320 -2,370 -1.26 35,622 5.19 14.1455
2022-11-14 2022-09-30 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 188,690 3,099 1.67 33,864 -3.26 14.2478
2022-07-22 2022-06-30 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 185,591 -1,229 -0.66 35,006 -5.67 14.6223
2022-05-10 2022-03-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 186,820 -5,204 -2.71 37,112 -15.07 14.7276
2022-02-09 2021-12-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 192,024 -9,557 -4.74 43,699 -3.14 15.1625
2021-10-07 2021-09-30 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 201,581 -4,708 -2.28 45,114 -3.18 15.7617
2021-07-12 2021-06-30 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 206,289 -11,989 -5.49 46,596 0.29 15.4129
2021-04-13 2021-03-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 218,278 -8,289 -3.66 46,460 2.92 15.3928
2021-01-11 2020-12-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 226,567 -5,544 -2.39 45,143 10.61 16.3118
2020-10-09 2020-09-30 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 232,111 -95,510 -29.15 40,814 -21.77 16.6740
2020-07-10 2020-06-30 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 327,621 51,014 18.44 52,170 50.26 21.7247
2020-04-03 2020-03-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 276,607 100,303 56.89 34,720 19.72 19.5031
2020-01-07 2019-12-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 176,304 -12,681 -6.71 29,000 1.62 20.7164
2019-10-04 2019-09-30 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 188,985 -15,930 -7.77 28,537 -8.71 22.4124
2019-07-08 2019-06-30 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 204,915 -16,163 -7.31 31,260 -2.29 22.8661
2019-04-05 2019-03-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 221,078 -30,443 -12.10 31,992 -4.95 22.6151
2019-01-17 2018-12-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 251,521 -20,838 -7.65 33,658 -17.42 23.0392
2018-10-09 2018-09-30 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 272,359 -47,321 -14.80 40,759 -9.21 26.4770
2018-07-11 2018-06-30 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 319,680 -20,013 -5.89 44,893 -2.62 33.4830
2018-04-11 2018-03-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 339,693 -36,267 -9.65 46,103 -10.65 31.7269
2018-01-10 2017-12-31 13F/A-1 VANGUARD INDEX FDS TOTAL STK MKT 922908769 375,960 -28,316 -7.00 51,601 -1.45 32.5651
2018-01-08 2017-12-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 404,276 0 52,362
2017-10-12 2017-09-30 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 404,276 2,988 0.74 52,362 4.85 27.2360
2017-07-06 2017-06-30 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 401,288 10,700 2.74 49,940 5.39 26.3639
2017-05-25 2017-03-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 390,588 45,239 13.10 47,386 18.98 26.3146
2017-01-11 2016-12-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 345,349 38,680 12.61 39,826 16.65 23.8204
2016-11-14 2016-09-30 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 306,669 24,092 8.53 34,141 12.75 22.2918
2016-11-14 2016-06-30 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 282,577 34,601 13.95 30,281 16.50 21.1204
2016-11-14 2016-03-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 247,976 -15,620 -5.93 25,993 -5.46 20.1991
2016-11-14 2015-12-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 263,596 263,596 27,493 26.8767
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.