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

SecurityVOO / Vanguard Index Funds - Vanguard S&P 500 ETF
InstitutionVanguard Group Inc
Latest Disclosed Ownership39,068,508 shares
Latest Disclosed Value $ 24,501,032,984
Vanguard Group Inc reports 3.01% increase in ownership of VOO / Vanguard Index Funds - Vanguard S&P 500 ETF

On January 29, 2026 - Vanguard Group Inc filed a 13F-HR form disclosing ownership of 39,068,508 shares of Vanguard Index Funds - Vanguard S&P 500 ETF (US:VOO) valued at $24,501,033,422 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 7, 2025 disclosing 37,926,577 shares of Vanguard Index Funds - Vanguard S&P 500 ETF. This represents a change in shares of 3.01% during the quarter. The current value of the position is $26,488,448,424 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)
2026-01-29 2025-12-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 39,068,508 1,141,931 3.01 24,501,033 5.49 0.3552
2025-11-07 2025-09-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 37,926,577 1,162,598 3.16 23,225,477 11.22 0.3477
2025-08-11 2025-06-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 36,763,979 2,313,230 6.71 20,883,043 17.95 0.3380
2025-05-09 2025-03-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 34,450,749 1,933,389 5.95 17,704,584 1.05 0.3201
2025-02-11 2024-12-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 32,517,360 2,516,003 8.39 17,520,679 10.67 0.3052
2024-11-13 2024-09-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 30,001,357 2,409,722 8.73 15,830,816 14.72 0.2835
2024-08-13 2024-06-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 27,591,635 2,205,338 8.69 13,799,405 13.08 0.2651
2024-05-10 2024-03-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 25,386,297 2,546,192 11.15 12,203,193 22.32 0.2417
2024-03-11 2023-12-31 13F/A-1 VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 22,840,105 1,233,726 5.71 9,976,558 17.58 0.2179
2024-02-14 2023-12-31 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 22,624,039 1,017,660 9,882,180 0.1876
2023-12-18 2023-09-30 13F/A-1 VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 21,606,379 1,231,615 6.04 8,484,825 2.25 0.2084
2023-11-14 2023-09-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 21,606,379 1,231,615 8,484,825 0.2084
2023-08-14 2023-06-30 13F VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 20,374,764 541,904 2.73 8,298,234 11.26 0.1968
2023-07-14 2023-03-31 13F/A-1 VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 19,832,860 544,872 2.82 7,458,544 10.06 0.1899
2023-05-15 2023-03-31 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 19,617,570 329,582 7,377,580 0.1879
2023-02-10 2022-12-31 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 19,287,988 549,588 2.93 6,776,642 10.16 0.1845
2022-11-14 2022-09-30 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 18,738,400 526,492 2.89 6,151,817 -2.62 0.1809
2022-08-12 2022-06-30 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 18,211,908 1,104,733 6.46 6,317,347 -11.05 0.1776
2022-05-13 2022-03-31 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 17,107,175 1,486,423 9.52 7,102,386 4.15 0.1680
2022-02-14 2021-12-31 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 15,620,752 -4,494 -0.03 6,819,552 10.66 0.1548
2021-11-12 2021-09-30 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 15,625,246 633,372 4.22 6,162,597 4.46 0.1531
2021-08-13 2021-06-30 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 14,991,874 1,345,871 9.86 5,899,602 18.67 0.1468
2021-05-14 2021-03-31 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 13,646,003 1,131,284 9.04 4,971,238 15.58 0.1345
2021-02-12 2020-12-31 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 12,514,719 1,531,268 13.94 4,301,183 27.29 0.1248
2020-11-16 2020-09-30 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 10,983,451 176,098 1.63 3,379,059 10.31 0.1118
2020-08-14 2020-06-30 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 10,807,353 -117,189 -1.07 3,063,128 18.40 0.1086
2020-05-15 2020-03-31 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 10,924,542 1,162,120 11.90 2,587,150 -10.41 0.1103
2020-02-14 2019-12-31 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 9,762,422 385,541 4.11 2,887,725 12.97 0.0985
2019-11-14 2019-09-30 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 9,376,881 250,688 2.75 2,556,137 4.06 0.0948
2019-08-14 2019-06-30 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 9,126,193 275,725 3.12 2,456,315 6.93 0.0924
2019-05-15 2019-03-31 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 8,850,468 447,923 5.33 2,297,050 18.96 0.0901
2019-02-14 2018-12-31 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 8,402,545 389,879 4.87 1,930,989 -9.76 0.0868
2018-12-13 2018-09-30 13F/A-2 S&P 500 ETF SHS S&P 500 ETF SHS 922908363 8,012,666 444,481 5.87 2,139,782 13.32 0.0836
2018-11-23 2018-09-30 13F/A-1 S&P 500 ETF SHS S&P 500 ETF SHS 922908363 8,012,666 0 2,139,782 0.0836
2018-11-14 2018-09-30 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 8,012,666 444,481 2,139,782
2018-08-14 2018-06-30 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 7,568,185 253,044 3.46 1,888,338 6.63 0.0790
2018-05-15 2018-03-31 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 7,315,141 729,112 11.07 1,770,850 9.62 0.0774
2018-02-14 2017-12-31 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 6,586,029 242,248 3.82 1,615,487 10.36 0.0706
2017-11-14 2017-09-30 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 6,343,781 170,280 2.76 1,463,891 6.53 0.0684
2017-08-24 2017-06-30 13F/A-1 S&P 500 ETF SHS S&P 500 ETF SHS 922908363 6,173,501 596,460 10.69 1,374,222 13.89 0.0677
2017-08-11 2017-06-30 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 6,173,501 596,460 1,374,222
2017-05-12 2017-03-31 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 5,577,041 589,605 11.82 1,206,593 17.83 0.0620
2017-02-14 2016-12-31 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 4,987,436 355,386 7.67 1,023,970 11.26 0.0571
2016-11-14 2016-09-30 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 4,632,050 -13,578 -0.29 920,342 3.07 0.0541
2016-08-10 2016-06-30 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 4,645,628 249,414 5.67 892,890 7.71 0.0555
2016-05-13 2016-03-31 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 4,396,214 508,143 13.07 828,950 14.06 0.0537
2016-02-08 2015-12-31 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 3,888,071 497,627 14.68 726,797 22.00 0.0489
2015-11-12 2015-09-30 13F/A-1 S&P 500 ETF SHS S&P 500 ETF SHS 922908363 3,390,444 218,174 6.88 595,735 -0.55 0.0253
2015-11-12 2015-09-30 13F/A-1 S&P 500 ETF SHS S&P 500 ETF SHS 922908363 3,390,444 218,174 595,735 0.0253
2015-08-13 2015-06-30 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 3,172,270 104,373 3.40 599,051 3.21 0.0405
2015-05-15 2015-03-31 13F/A-1 S&P 500 ETF SHS S&P 500 ETF SHS 922908363 3,067,897 422,043 15.95 580,446 16.44 0.0394
2015-05-14 2015-03-31 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 3,029,459 9,541,004
2015-02-12 2014-12-31 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 2,645,854 537,869 25.52 498,479 30.94 0.0359
2014-11-12 2014-09-30 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 2,107,985 52,482 2.55 380,681 3.22 0.0297
2014-08-11 2014-06-30 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 2,055,503 145,686 7.63 368,819 12.70 0.0291
2014-05-13 2014-03-31 13F S&P 500 ETF SHS S&P 500 ETF SHS 922908363 1,909,817 296,227 18.36 327,247 19.90 0.0275
2014-02-12 2013-12-31 13F S&P 500 ETF S&P 500 ETF SHS 922908363 1,613,590 1,613,590 272,939 0.0240
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.