Vanguard 指數基金 - Vanguard S&P 500 ETF
US ˙ ARCA ˙ US9229083632

SecurityVOO / Vanguard Index Funds - Vanguard S&P 500 ETF
InstitutionAmerican Trust
Latest Disclosed Ownership290,703 shares
Latest Disclosed Value $ 173,709,795
American Trust reports 0.51% increase in ownership of VOO / Vanguard Index Funds - Vanguard S&P 500 ETF

On May 1, 2026 - American Trust filed a 13F-HR form disclosing ownership of 290,703 shares of Vanguard Index Funds - Vanguard S&P 500 ETF (US:VOO) valued at $173,709,578 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 14, 2026 disclosing 289,240 shares of Vanguard Index Funds - Vanguard S&P 500 ETF. This represents a change in shares of 0.51% during the quarter. The current value of the position is $197,096,634 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)
2026-05-01 2026-03-31 13F VANGUARD S&P 500 Equities 922908363 290,703 1,463 0.51 173,710 -4.24 15.3478
2026-02-14 2025-12-31 13F VANGUARD S&P 500 Equities 922908363 289,240 -21,369 -6.88 181,391 -4.64 15.2495
2025-11-17 2025-09-30 13F VANGUARD S&P 500 Equities 922908363 310,609 -12,681 -3.92 190,211 3.58 16.0674
2025-09-03 2025-06-30 13F VANGUARD S&P 500 Equities 922908363 323,290 322,705 55,163.25 183,639 61,112.67 17.2984
2025-05-16 2025-03-31 13F VANGUARD S&P 500 Equities 922908363 585 -358,166 -99.84 301 -99.84 0.0741
2025-02-18 2024-12-31 13F VANGUARD S&P 500 Equities 922908363 358,751 5,543 1.57 193,299 3.71 14.7146
2024-11-29 2024-09-30 13F VANGUARD S&P 500 Equities 922908363 353,208 -634 -0.18 186,378 5.32 15.3790
2024-09-12 2024-06-30 13F VANGUARD S&P 500 Equities 922908363 353,842 -32,781 -8.48 176,967 -4.78 14.4971
2024-06-11 2024-03-31 13F VANGUARD S&P 500 Equities 922908363 386,623 -2,373 -0.61 185,850 9.38 15.5251
2024-02-21 2023-12-31 13F VANGUARD S&P 500 Equities 922908363 388,996 -36,705 -8.62 169,914 1.64 12.5483
2023-11-15 2023-09-30 13F VANGUARD S&P 500 Equities 922908363 425,701 -8,932 -2.06 167,173 -5.56 12.9450
2023-08-14 2023-06-30 13F VANGUARD S&P 500 Equities 922908363 434,633 -9,453 -2.13 177,017 5.99 12.2758
2023-05-22 2023-03-31 13F VANGUARD S&P 500 Equities 922908363 444,086 432,238 3,648.19 167,008 3,912.66 11.5820
2023-02-16 2022-12-31 13F VANGUARD S&P 500 Equities 922908363 11,848 -429,542 -97.32 4,163 -97.13 0.3866
2022-12-02 2022-09-30 13F VANGUARD S&P 500 Equities 922908363 441,390 721 0.16 144,908 -5.20 12.2161
2022-10-03 2022-06-30 13F VANGUARD S&P 500 Equities 922908363 440,669 -217 -0.05 152,859 -16.49 12.2441
2022-06-08 2022-03-31 13F VANGUARD S&P 500 Equities 922908363 440,886 -6,834 -1.53 183,043 -6.35 12.2836
2022-03-17 2021-12-31 13F VANGUARD S&P 500 Equities 922908363 447,720 447,720 195,461 14.9171
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.