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

SecurityVOO / Vanguard Index Funds - Vanguard S&P 500 ETF
InstitutionWillner & Heller, Llc
Latest Disclosed Ownership703 shares
Latest Disclosed Value $ 420,223
Willner & Heller, Llc reports 16.20% increase in ownership of VOO / Vanguard Index Funds - Vanguard S&P 500 ETF

On April 17, 2026 - Willner & Heller, Llc filed a 13F-HR form disclosing ownership of 703 shares of Vanguard Index Funds - Vanguard S&P 500 ETF (US:VOO) valued at $420,078 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 605 shares of Vanguard Index Funds - Vanguard S&P 500 ETF. This represents a change in shares of 16.20% during the quarter. The current value of the position is $487,432 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)
2026-04-17 2026-03-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 703 98 16.20 420 10.82 0.3132
2026-01-12 2025-12-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 605 -15 -2.42 380 0.00 0.2728
2025-10-16 2025-09-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 620 -28 -4.32 379 3.27 0.2914
2025-07-22 2025-06-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 648 -40 -5.81 368 3.97 0.3099
2025-05-05 2025-03-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 688 26 3.93 354 -0.84 0.3269
2025-01-16 2024-12-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 662 113 20.58 357 23.18 0.3123
2024-10-10 2024-09-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 549 139 33.90 289 41.67 0.2579
2024-07-19 2024-06-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 410 410 205 0.1963
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.