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

SecurityVOO / Vanguard Index Funds - Vanguard S&P 500 ETF
InstitutionHirtle Callaghan & Co LLC
Latest Disclosed Ownership238,838 shares
Latest Disclosed Value $ 142,717,647
Hirtle Callaghan & Co LLC reports 0.33% increase in ownership of VOO / Vanguard Index Funds - Vanguard S&P 500 ETF

On May 13, 2026 - Hirtle Callaghan & Co LLC filed a 13F-HR form disclosing ownership of 238,838 shares of Vanguard Index Funds - Vanguard S&P 500 ETF (US:VOO) valued at $142,717,647 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 238,056 shares of Vanguard Index Funds - Vanguard S&P 500 ETF. This represents a change in shares of 0.33% during the quarter. The current value of the position is $161,932,164 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)
2026-05-13 2026-03-31 13F VANGUARD S&P 500 ETF Common Stock 922908363 238,838 782 0.33 142,718 -4.40 4.8887
2026-02-04 2025-12-31 13F VANGUARD S&P 500 ETF Common Stock 922908363 238,056 -9,833 -3.97 149,292 -1.65 5.0828
2025-11-13 2025-09-30 13F VANGUARD S&P 500 ETF Common Stock 922908363 247,889 -17,006 -6.42 151,802 0.89 5.3359
2025-08-14 2025-06-30 13F VANGUARD S&P 500 ETF Common Stock 922908363 264,895 -98,073 -27.02 150,468 -19.33 5.7042
2025-05-12 2025-03-31 13F VANGUARD S&P 500 ETF Common Stock 922908363 362,968 250,415 222.49 186,533 207.59 7.2650
2025-02-11 2024-12-31 13F VANGUARD S&P 500 ETF Common Stock 922908363 112,553 -5,438 -4.61 60,645 -2.60 2.5532
2024-11-13 2024-09-30 13F VANGUARD S&P 500 ETF Common Stock 922908363 117,991 1,330 1.14 62,260 6.71 2.5179
2024-08-13 2024-06-30 13F VANGUARD S&P 500 ETF Common Stock 922908363 116,661 -9,231 -7.33 58,346 -3.59 2.5147
2024-05-10 2024-03-31 13F VANGUARD S&P 500 ETF Common Stock 922908363 125,892 -9,318 -6.89 60,516 2.47 2.5808
2024-02-13 2023-12-31 13F VANGUARD S&P 500 ETF Common Stock 922908363 135,210 -9,680 -6.68 59,060 3.80 2.6923
2023-11-08 2023-09-30 13F VANGUARD S&P 500 ETF Common Stock 922908363 144,890 10,328 7.68 56,898 3.82 2.8416
2023-08-10 2023-06-30 13F VANGUARD S&P 500 ETF Common Stock 922908363 134,562 -10,521 -7.25 54,804 0.45 2.6151
2023-05-11 2023-03-31 13F VANGUARD S&P 500 ETF Common Stock 922908363 145,083 -34,157 -19.06 54,561 -13.36 2.7150
2023-02-14 2022-12-31 13F VANGUARD S&P 500 ETF Common Stock 922908363 179,240 12,536 7.52 62,974 15.07 3.8594
2022-11-14 2022-09-30 13F VANGUARD S&P 500 ETF Common Stock 922908363 166,704 20,481 14.01 54,729 7.90 3.9156
2022-08-15 2022-06-30 13F VANGUARD S&P 500 ETF Common Stock 922908363 146,223 22,221 17.92 50,722 -1.48 3.0069
2022-05-13 2022-03-31 13F VANGUARD S&P 500 ETF Common Stock 922908363 124,002 38,788 45.52 51,482 38.39 2.4918
2022-02-14 2021-12-31 13F VANGUARD S&P 500 ETF Common Stock 922908363 85,214 10,368 13.85 37,202 26.03 1.8746
2021-11-15 2021-09-30 13F VANGUARD S&P 500 ETF Common Stock 922908363 74,846 19,999 36.46 29,519 36.77 1.6638
2021-08-13 2021-06-30 13F VANGUARD S&P 500 ETF Common Stock 922908363 54,847 -1,850 -3.26 21,583 4.49 1.2611
2021-05-06 2021-03-31 13F VANGUARD S&P 500 ETF Common Stock 922908363 56,697 537 0.96 20,655 7.01 1.3557
2021-02-08 2020-12-31 13F Vanguard S&P 500 Common Stock 922908363 56,160 616 1.11 19,302 12.55 1.4626
2020-11-03 2020-09-30 13F Vanguard S&P 500 Common Stock 922908363 55,544 -1,043,253 -94.95 17,149 -94.52 1.2759
2020-08-03 2020-06-30 13F Vanguard S&P 500 Common Stock 922908363 1,098,797 169,745 18.27 312,952 42.24 19.0441
2020-05-05 2020-03-31 13F Vanguard S&P 500 Common Stock 922908363 929,052 22,822 2.52 220,018 -17.92 17.8346
2020-02-06 2019-12-31 13F Vanguard S&P 500 Common Stock 922908363 906,230 -1,731 -0.19 268,063 7.79 20.7160
2019-10-31 2019-09-30 13F Vanguard S&P 500 Common Stock 922908363 907,961 -5,169 -0.57 248,692 0.67 20.1127
2019-08-13 2019-06-30 13F Vanguard S&P 500 Common Stock 922908363 913,130 15,483 1.72 247,034 6.03 19.4978
2019-05-14 2019-03-31 13F Vanguard S&P 500 Common Stock 922908363 897,647 50,689 5.98 232,975 19.70 18.8785
2019-02-07 2018-12-31 13F Vanguard S&P 500 Common Stock 922908363 846,958 78,440 10.21 194,639 -5.59 16.8195
2018-10-22 2018-09-30 13F Vanguard S&P 500 Common Stock 922908363 768,518 0 0.00 206,160 7.02 18.1784
2018-07-23 2018-06-30 13F Vanguard S&P 500 Common Stock 922908363 768,518 47,018 6.52 192,642 10.29 17.7601
2018-05-01 2018-03-31 13F Vanguard S&P 500 Common Stock 922908363 721,500 0 0.00 174,661 -1.31 16.1565
2018-01-17 2017-12-31 13F Vanguard S&P 500 Common Stock 922908363 721,500 0 0.00 176,977 6.30 16.2257
2017-11-13 2017-09-30 13F Vanguard S&P 500 Common Stock 922908363 721,500 0 0.00 166,493 3.92 16.5305
2017-08-04 2017-06-30 13F Vanguard S&P 500 ETF Common Stock 922908363 721,500 0 0.00 160,217 2.64 25.6541
2017-05-08 2017-03-31 13F Vanguard S&P 500 ETF Common Stock 922908363 721,500 0 0.00 156,096 5.38 25.5546
2017-01-31 2016-12-31 13F/A-1 VANGUARD S&P 500 ETF Common Stock 922908363 721,500 0 0.00 148,131 3.33 25.8343
2017-01-31 2016-12-31 13F VANGUARD S&P 500 ETF Common Stock 922908363 148,131 148,131
2016-11-07 2016-09-30 13F VANGUARD S&P 500 ETF Common Stock 922908363 721,500 0 0.00 143,355 3.38 29.6010
2016-08-02 2016-06-30 13F VANGUARD S&P 500 ETF Common Stock 922908363 721,500 0 0.00 138,672 1.93 25.7455
2016-05-06 2016-03-31 13F VANGUARD S&P 500 ETF Common Stock 922908363 721,500 0 0.00 136,046 0.87 25.4471
2016-02-08 2015-12-31 13F VANGUARD S&P 500 ETF Common Stock 922908363 721,500 0 0.00 134,870 6.39 31.4404
2015-11-10 2015-09-30 13F VANGUARD S&P 500 ETF Common Stock 922908363 721,500 0 0.00 126,775 -6.95 21.6252
2015-08-13 2015-06-30 13F VANGUARD S&P 500 ETF Common Stock 922908363 721,500 716,965 15,809.59 136,248 17,663.75 45.9729
2014-01-29 2013-12-31 13F VANGUARD INDEX TR Common Stock 922908363 4,535 4,535 767 0.1027
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.