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

SecurityVOO / Vanguard Index Funds - Vanguard S&P 500 ETF
InstitutionIMPACTfolio, LLC
Latest Disclosed Ownership1,801 shares
Latest Disclosed Value $ 1,076,003
IMPACTfolio, LLC reports 1.41% increase in ownership of VOO / Vanguard Index Funds - Vanguard S&P 500 ETF

On April 30, 2026 - IMPACTfolio, LLC filed a 13F-HR form disclosing ownership of 1,801 shares of Vanguard Index Funds - Vanguard S&P 500 ETF (US:VOO) valued at $1,076,188 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 7, 2026 disclosing 1,776 shares of Vanguard Index Funds - Vanguard S&P 500 ETF. This represents a change in shares of 1.41% during the quarter. The current value of the position is $1,248,741 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)
2026-04-30 2026-03-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,801 25 1.41 1,076 -3.32 0.4573
2026-01-07 2025-12-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,776 -94 -5.03 1,114 -2.71 0.4676
2025-10-03 2025-09-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,870 1 0.05 1,145 7.82 0.4938
2025-07-10 2025-06-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,869 1 0.05 1,061 10.64 0.5032
2025-04-25 2025-03-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,868 -862 -31.58 960 -34.76 0.5044
2025-01-02 2024-12-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 2,730 4 0.15 1,471 2.23 0.7632
2024-10-01 2024-09-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 2,726 7 0.26 1,438 5.81 0.7424
2024-07-08 2024-06-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 2,719 0 0.00 1,360 4.06 0.7617
2024-04-01 2024-03-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 2,719 0 0.00 1,307 10.03 0.7897
2024-01-02 2023-12-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 2,719 -208 -7.11 1,188 3.31 0.7727
2023-10-10 2023-09-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 2,927 -35 -1.18 1,149 -4.73 0.8288
2023-07-06 2023-06-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 2,962 -48 -1.59 1,206 6.63 0.9581
2023-04-04 2023-03-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 3,010 1,347 81.00 1,132 93.66 0.9475
2023-01-03 2022-12-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,663 -73 -4.21 1 -100.00 0.5414
2022-10-05 2022-09-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,736 -188 -9.77 570 -14.54 0.5561
2022-07-06 2022-06-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 1,924 -222 -10.34 667 -25.14 0.6287
2022-04-04 2022-03-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 2,146 -166 -7.18 891 -11.69 0.6633
2022-01-10 2021-12-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 2,312 2,312 1,009 0.8837
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.