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
InstitutionHarbor Advisory Corp /ma/
Latest Disclosed Ownership2,135 shares
Latest Disclosed Value $ 684,929
Harbor Advisory Corp /ma/ reports 33.84% decrease in ownership of 0LOS / Vanguard Index Funds - Vanguard Total Stock Market ETF

On May 7, 2026 - Harbor Advisory Corp /ma/ filed a 13F-HR form disclosing ownership of 2,135 shares of Vanguard Index Funds - Vanguard Total Stock Market ETF (GB:0LOS) valued at $681,935 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 3,227 shares of Vanguard Index Funds - Vanguard Total Stock Market ETF. This represents a change in shares of -33.84% during the quarter. The current value of the position is $781,186 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)
2026-05-07 2026-03-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 2,135 -1,092 -33.84 685 -36.73 0.2058
2026-02-06 2025-12-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 3,227 -15 -0.46 1,082 1.69 0.3273
2025-11-12 2025-09-30 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 3,242 -35 -1.07 1,064 6.83 0.3146
2025-08-12 2025-06-30 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 3,277 -60 -1.80 996 8.51 0.3174
2025-05-13 2025-03-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 3,337 -10 -0.30 917 -5.37 0.3079
2025-01-29 2024-12-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 3,347 -461 -12.11 970 -10.11 0.3186
2024-10-21 2024-09-30 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 3,808 -39 -1.01 1,078 4.76 0.3519
2024-07-25 2024-06-30 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 3,847 -30 -0.77 1,029 2.18 0.3554
2024-04-29 2024-03-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 3,877 0 0.00 1,008 9.58 0.3430
2024-02-05 2023-12-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 3,877 -170 -4.20 920 6.98 0.3293
2023-10-27 2023-09-30 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 4,047 -75 -1.82 860 -5.29 0.3115
2023-08-03 2023-06-30 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 4,122 -122 -2.87 908 4.73 0.3206
2023-05-04 2023-03-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 4,244 167 4.10 866 11.17 0.3307
2023-02-07 2022-12-31 13F VANGUARD INDEX FDS TOTAL STK MKT 922908769 4,077 0 0.00 779 6.42 0.3184
2022-10-31 2022-09-30 13F VANGUARD TOTAL STOCK MARKET EF 922908769 4,077 -81 -1.95 732 -6.63 0.3371
2022-08-01 2022-06-30 13F VANGUARD TOTAL STOCK MARKET EF 922908769 4,158 -140 -3.26 784 -19.92 0.3436
2022-05-13 2022-03-31 13F VANGUARD TOTAL STOCK MARKET EF 922908769 4,298 -135 -3.05 979 -8.50 0.3929
2022-02-07 2021-12-31 13F VANGUARD TOTAL STOCK MARKET EF 922908769 4,433 0 0.00 1,070 8.74 0.4340
2021-11-12 2021-09-30 13F VANGUARD TOTAL STOCK MARKET EF 922908769 4,433 152 3.55 984 3.14 0.4269
2021-08-04 2021-06-30 13F VANGUARD TOTAL STOCK MARKET EF 922908769 4,281 107 2.56 954 10.54 0.4301
2021-05-13 2021-03-31 13F VANGUARD TOTAL STOCK MARKET EF 922908769 4,174 -100 -2.34 863 3.73 0.3431
2021-02-16 2020-12-31 13F VANGUARD TOTAL STOCK MARKET EF 922908769 4,274 391 10.07 832 25.87 0.4404
2020-10-26 2020-09-30 13F VANGUARD TOTAL STK MKT EF 922908769 3,883 -140 -3.48 661 4.92 0.6481
2020-08-04 2020-06-30 13F VANGUARD TOTAL STK MKT EF 922908769 4,023 -521 -11.47 630 7.51 0.6383
2020-04-28 2020-03-31 13F VANGUARD TOTAL STK MKT EF 922908769 4,544 -105 -2.26 586 -23.00 0.6284
2020-02-05 2019-12-31 13F VANGUARD TOTAL STK MKT EF 922908769 4,649 -20 -0.43 761 7.94 0.6331
2019-10-28 2019-09-30 13F VANGUARD TOTAL STK MKT EF 922908769 4,669 -20 -0.43 705 0.14 0.6154
2019-07-30 2019-06-30 13F VANGUARD TOTAL STK MKT EF 922908769 4,689 -10 -0.21 704 3.53 0.6215
2019-04-23 2019-03-31 13F VANGUARD TOTAL STK MKT EF 922908769 4,699 0 0.00 680 13.33 0.6078
2019-02-05 2018-12-31 13F VANGUARD TOTAL STK MKT EF 922908769 4,699 -31 -0.66 600 -15.25 0.5938
2018-10-17 2018-09-30 13F VANGUARD TOTAL STK MKT EF 922908769 4,730 -10 -0.21 708 6.31 0.6130
2018-07-23 2018-06-30 13F VANGUARD TOTAL STK MKT EF 922908769 4,740 0 0.00 666 3.58 0.5978
2018-05-07 2018-03-31 13F VANGUARD TOTAL STK MKT EF 922908769 4,740 -285 -5.67 643 -6.81 0.5891
2018-01-30 2017-12-31 13F VANGUARD TOTAL STK MKT EF 922908769 5,025 5,025 690 0.6594
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.