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

SecurityVOO / Vanguard Index Funds - Vanguard S&P 500 ETF
InstitutionCertified Advisory Corp
Latest Disclosed Ownership28,263 shares
Latest Disclosed Value $ 16,888,551
Certified Advisory Corp reports 3.10% increase in ownership of VOO / Vanguard Index Funds - Vanguard S&P 500 ETF

On April 17, 2026 - Certified Advisory Corp filed a 13F-HR form disclosing ownership of 28,263 shares of Vanguard Index Funds - Vanguard S&P 500 ETF (US:VOO) valued at $16,888,556 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 27,413 shares of Vanguard Index Funds - Vanguard S&P 500 ETF. This represents a change in shares of 3.10% during the quarter. The current value of the position is $19,672,744 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 28,263 850 3.10 16,889 -1.76 1.5147
2026-01-12 2025-12-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 27,413 1,311 5.02 17,192 7.55 1.5664
2025-11-13 2025-09-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 26,102 7,110 37.44 15,984 48.16 1.5180
2025-08-14 2025-06-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 18,992 1,378 7.82 10,788 19.19 1.1214
2025-05-08 2025-03-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 17,614 1,162 7.06 9,052 2.11 1.0248
2025-01-15 2024-12-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 16,452 1,693 11.47 8,864 13.83 0.9621
2024-11-12 2024-09-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 14,759 1,748 13.43 7,788 19.67 0.8628
2024-08-13 2024-06-30 13F VANGUARD S&P 500 ETF ETF 922908363 13,011 2,381 22.40 6,507 27.36 0.8163
2024-05-10 2024-03-31 13F VANGUARD S&P 500 ETF ETF 922908363 10,630 3,060 40.42 5,110 54.54 0.7129
2024-02-09 2023-12-31 13F VANGUARD S&P 500 ETF ETF 922908363 7,570 1,634 27.53 3,307 41.83 0.5016
2023-11-13 2023-09-30 13F VANGUARD S&P 500 ETF ETF 922908363 5,936 1,325 28.74 2,331 24.19 0.4287
2023-08-14 2023-06-30 13F VANGUARD S&P 500 ETF ETF 922908363 4,611 375 8.85 1,878 17.90 0.3453
2023-05-17 2023-03-31 13F/A-1 VANGUARD S&P 500 ETF ETF 922908363 4,236 -120 -2.75 1,593 4.05 0.2832
2023-05-15 2023-03-31 13F VANGUARD S&P 500 ETF ETF 922908363 4,236 -120 1,593 0.2831
2023-02-15 2022-12-31 13F VANGUARD S&P 500 ETF ETF 922908363 4,356 497 12.88 1,530 20.76 0.3025
2022-11-14 2022-09-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 3,859 139 3.74 1,267 -1.78 0.2891
2022-08-15 2022-06-30 13F VANGUARD S&P 500 ETF S&P 500 ETF SHS 922908363 3,720 -64 -1.69 1,290 -17.89 0.2876
2022-05-13 2022-03-31 13F VANGUARD S&P 500 ETF ETF 922908363 3,784 372 10.90 1,571 5.44 0.3338
2022-02-14 2021-12-31 13F VANGUARD S&P 500 ETF ETF 922908363 3,412 97 2.93 1,490 14.00 0.3287
2021-11-15 2021-09-30 13F VANGUARD S&P 500 ETF ETF 922908363 3,315 351 11.84 1,307 12.09 0.3175
2021-08-16 2021-06-30 13F VANGUARD S&P 500 ETF ETF 922908363 2,964 192 6.93 1,166 15.45 0.2931
2021-05-10 2021-03-31 13F VANGUARD S&P 500 ETF ETF 922908363 2,772 488 21.37 1,010 56.11 0.2618
2020-07-27 2020-06-30 13F VANGUARD S&P 500 ETF ETF 922908363 2,284 1,157 102.66 647 142.32 0.2140
2020-04-27 2020-03-31 13F VANGUARD S&P 500 ETF ETF 922908363 1,127 225 24.94 267 0.00 0.1055
2020-01-29 2019-12-31 13F VANGUARD S&P 500 ETF ETF 922908363 902 16 1.81 267 10.33 0.0853
2019-11-12 2019-09-30 13F VANGUARD S&P 500 ETF ETF 922908363 886 -23 -2.53 242 -1.22 0.0841
2019-08-07 2019-06-30 13F VANGUARD S&P 500 ETF ETF 922908363 909 -112 -10.97 245 -7.55 0.0911
2019-05-07 2019-03-31 13F VANGUARD S&P 500 ETF ETF 922908363 1,021 -1 -0.10 265 12.77 0.1113
2019-02-04 2018-12-31 13F VANGUARD S&P 500 ETF ETF 922908363 1,022 -157 -13.32 235 -25.40 0.1219
2018-11-13 2018-09-30 13F VANGUARD S&P 500 ETF ETF 922908363 1,179 -5 -0.42 315 6.42 0.1457
2018-08-13 2018-06-30 13F VANGUARD S&P 500 ETF S&P 500 ETF SHS 922908363 1,184 3 0.25 296 3.86 0.1646
2018-04-30 2018-03-31 13F VANGUARD S&P 500 ETF S&P 500 ETF SHS 922908363 1,181 -3,956 -77.01 285 5.95 0.1689
2018-02-22 2017-12-31 13F VANGUARD S&P 500 ETF S&P 500 ETF SHS 922908363 5,137 5,137 269 0.1933
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.