Vanguard Index Funds - Vanguard S&P 500 ETF
US ˙ ARCA ˙ US9229083632

SecurityVOO / Vanguard Index Funds - Vanguard S&P 500 ETF
InstitutionTarbox Family Office, Inc.
Latest Disclosed Ownership1,051 shares
Latest Disclosed Value $ 628,241
Tarbox Family Office, Inc. ownership in VOO / Vanguard Index Funds - Vanguard S&P 500 ETF

On April 23, 2026 - Tarbox Family Office, Inc. filed a 13F-HR form disclosing ownership of 1,051 shares of Vanguard Index Funds - Vanguard S&P 500 ETF (US:VOO) valued at $628,025 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 1,051 shares of Vanguard Index Funds - Vanguard S&P 500 ETF. This represents a change in shares of 0.00% during the quarter. The current value of the position is $728,721 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-04-23 2026-03-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,051 0 0.00 628 -4.70 0.1020
2026-01-21 2025-12-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,051 -164 -13.50 659 -11.42 0.1061
2025-10-24 2025-09-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,215 0 0.00 744 7.83 0.1093
2025-08-12 2025-06-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,215 0 0.00 690 10.58 0.1038
2025-05-08 2025-03-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,215 0 0.00 625 -4.59 0.1038
2025-01-17 2024-12-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,215 0 0.00 655 2.19 0.1080
2024-10-23 2024-09-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,215 -3 -0.25 641 5.09 0.1050
2024-07-17 2024-06-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,218 0 0.00 609 4.10 0.1075
2024-04-16 2024-03-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,218 0 0.00 586 10.17 0.1029
2024-02-08 2023-12-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,218 1 0.08 532 11.32 0.1035
2023-10-13 2023-09-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,217 0 0.00 478 -3.64 0.0990
2023-07-20 2023-06-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,217 0 0.00 496 8.32 0.0964
2023-04-11 2023-03-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,217 0 0.00 458 7.03 0.0925
2023-01-25 2022-12-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,217 0 0.00 428 1.18 0.0937
2022-10-14 2022-09-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,217 0 0.00 422 0.00 0.1001
2022-07-19 2022-06-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,217 0 0.00 422 -16.44 0.0948
2022-04-25 2022-03-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,217 0 0.00 505 -4.90 0.1025
2022-01-06 2021-12-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,217 0 0.00 531 10.63 0.0914
2021-10-12 2021-09-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,217 -97 -7.38 480 -7.16 0.0879
2021-07-16 2021-06-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,314 0 0.00 517 7.93 0.0924
2021-04-27 2021-03-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,314 0 0.00 479 5.97 0.0943
2021-01-27 2020-12-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,314 0 0.00 452 11.88 0.0945
2020-10-22 2020-09-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,314 0 0.00 404 8.60 0.0983
2020-07-23 2020-06-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,314 510 63.43 372 95.79 0.0962
2020-04-30 2020-03-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 804 194 31.80 190 5.56 0.0615
2020-01-31 2019-12-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 610 0 0.00 180 8.43 0.0492
2019-10-25 2019-09-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 610 17 2.87 166 3.75 0.0505
2019-08-02 2019-06-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 593 0 0.00 160 3.90 0.0501
2019-04-24 2019-03-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 593 0 0.00 154 13.24 0.0563
2019-02-01 2018-12-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 593 0 0.00 136 -13.92 0.0563
2018-10-26 2018-09-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 593 0 0.00 158 6.76 0.0572
2018-07-31 2018-06-30 13F VANGUARD S&P 500 ETF ETF 922908363 593 0 0.00 148 2.78 0.0571
2018-04-24 2018-03-31 13F VANGUARD S&P 500 ETF ETF 922908363 593 0 0.00 144 -0.69 0.0556
2018-01-26 2017-12-31 13F VANGUARD S&P 500 ETF ETF 922908363 593 593 145 0.0575
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.