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Fund · Vanguard 500 Index Fund · measured from SEC filings

VOO holdings

VOO reports 512 holdings and behaves like 51.6 equally weighted ones, computed from its SEC Form N-PORT filing for 2026-06-30. The fact sheet publishes the first number; this page computes the second, and traces it across 28 quarters of filings.

Measured concentration

as of 2026-06-30
512 Positions reported
51.6 Effective holdings
9.9× Concentration multiple
36.37% Top ten weight

Computed by this site from the fund's SEC Form N-PORT filing; what the measure does not tell you · every fund in one table · hold it with other funds? X-ray the mix. Pricing: 100% at a quoted market price (level 1), one issuer country.

What stands out

as of 2026-06-30

VOO's largest investment is Nvidia Corp at 7.51% of net assets. Apple Inc and Microsoft Corp follow; the three together are 18.4%. Ten companies are 36.37% of the fund; the other 502 share the rest. Among the 721 equity funds measured here, VOO behaves like 51.6 holdings against a median of 42.4 — close to the median. Across 28 quarterly filings VOO has become more concentrated: it behaved like 112.4 at 2019-09-30 and 51.6 at 2026-06-30. Between the 2026-03-31 and 2026-06-30 filings 10 positions were added and 8 dropped; 8.8% of the weight moved.

Each sentence is read from the fund's own SEC filing; the class median is computed across the comparable equity funds on this site. Nothing here is a view on the fund.

Every filing since 2019

28

Between 2019-09-30 and 2026-06-30, VOO went from behaving like 112.4 equally weighted positions to 51.6 — 54% fewer, while its top ten went from 21.46% to 36.37% of net assets. Read across the funds on the concentration-over-time table.

PeriodHoldingsEffective Top 10Largest
2026-06-30 512 51.6 36.37% 7.51%
2026-03-31 510 51.4 36.44% 7.57%
2025-12-31 506 45.8 39.22% 7.75%
2025-09-30 525 45.3 38.84% 7.97%
2025-06-30 535 49.2 36.59% 7.33%
2025-03-31 514 56.6 33.54% 7.01%
2024-12-31 506 48.2 37.33% 7.6%
2024-09-30 510 52.3 34.61% 7.27%
Earlier filings (20 more, back to 2019-09-30)
PeriodHoldingsEffectiveTop 10Largest
2024-06-30 508 50.1 35.71% 7.24%
2024-03-31 512 60.3 32.14% 7.09%
2023-12-31 522 61.5 30.81% 7.02%
2023-09-30 506 64 30.52% 6.98%
2023-06-30 516 60.4 30.42% 7.7%
2023-03-31 511 70 27.33% 7.13%
2022-12-31 511 85.2 24.34% 6.04%
2022-09-30 505 72.6 27.63% 6.89%
2022-06-30 506 74.7 26.82% 6.56%
2022-03-31 512 67.6 29.33% 7.04%
2021-12-31 514 68 29.22% 6.83%
2021-09-30 513 74.7 28.02% 6.06%
2021-06-30 515 77.1 27.32% 5.89%
2021-03-31 525 82.5 26.14% 5.69%
2020-12-31 520 73.3 27.21% 6.66%
2020-09-30 518 69.3 27.75% 6.64%
2020-06-30 519 74.8 26.74% 5.98%
2020-03-31 522 85.8 25.02% 5.56%
2019-12-31 522 104 22.54% 4.56%
2019-09-30 520 112.4 21.46% 4.28%

One row per filed reporting period, newest first, read from EDGAR. Quarterly because that is the public filing cadence. Rows marked * are published but held out of the comparison above; the methodology page says when and why.

Compared with, in the essays

6

Overlap with other funds

27

Measured against every other fund on this site, from the same filings. Combined effective holdings is how the pair behaves held in equal size.

WithOverlapSharedCombined effective
VOO vs IVV 96.8% 474 51.6
VOO vs VTI 88.3% 503 58.6
VOO vs ITOT 85.66% 475 58.2
VOO vs VUG 57.49% 122 31
VOO vs VT 55.1% 498 83.7
VOO vs QQQ 54.46% 88 44.2
VOO vs QQQM 54.2% 88 42
VOO vs RSP 44.42% 495 157.2
VOO vs QUAL 44.35% 115 52.5
VOO vs VTV 43.67% 297 103.6
17 more pairs, down to 0% overlap
WithOverlapSharedCombined effective
VOO vs VIG 40.39% 168 71.9
VOO vs VGT 38.08% 75 27.4
VOO vs XLK 37.22% 69 29
VOO vs MTUM 36.62% 105 58.8
VOO vs TQQQ 27.74% 85 19.5
VOO vs SMH 19.21% 19 30.9
VOO vs SCHD 7.5% 45 71.8
VOO vs IFRA 4.59% 48 99.8
VOO vs XLU 2.19% 31 55.9
VOO vs BND 0.34% 1 194.3
VOO vs VWO 0.34% 1 91.1
VOO vs VXUS 0.34% 1 173.8
VOO vs VEA 0.17% 1 169.7
VOO vs AGG 0% 0 189
VOO vs SGOV 0% 0 51.5
VOO vs AVUV 0% 0 173.5
VOO vs IJH 0% 0 175

Largest positions, as filed

as of 2026-06-30

The 15 largest of 512 positions in VOO's Form N-PORT, weight as a share of net assets, securities-lending collateral excluded. Every position, every quarter: VOO.csv.gz.

#PositionWeightCumulative
1NVIDIA Corp7.51%7.5%
2Apple Inc6.58%14.1%
3Microsoft Corp4.29%18.4%
4Amazon.com Inc3.61%22.0%
5Alphabet Inc3.25%25.2%
6Broadcom Inc2.77%28.0%
7Alphabet Inc2.59%30.6%
8Micron Technology Inc2.02%32.6%
9Meta Platforms Inc1.92%34.5%
10Tesla Inc1.83%36.4%
11Eli Lilly & Co1.47%37.8%
12Advanced Micro Devices Inc1.47%39.3%
13Berkshire Hathaway Inc1.42%40.7%
14JPMorgan Chase & Co1.25%42.0%
15Intel Corp1.02%43.0%

Returns the fund reported

2019-07 – 2026-06

Monthly total returns from Item B.5 of VOO's own filings, 84 months on record. Not computed here and not from a price feed.

22.3%Last twelve months filed
183%Whole series, compounded
12.8%Best month
-12.4%Worst month

Cross-checked against a series computed separately from prices: median difference 0.04 percentage points over 84 months, which is roughly the distributions. Every month with the filing it came from: VOO.json · all funds.

Who borrows VOO's shares

2026-06-30

The fund lends its holdings, and Item B.4.a of the filing names every firm holding them. At 2026-06-30, $84m was out to 10 borrowers, 0.01% of net assets. The largest, NOMURA SECURITIES INTERNATIONAL INC., held 42.7% of it.

BorrowerOn loanShare of the loan
NOMURA SECURITIES INTERNATIONAL INC. $36m 42.7%
TD SECURITIES (USA), LLC $14m 17.1%
BofA Securities, Inc. $11m 12.7%
Wells Fargo Securities LLC $7m 8.4%
STATE STREET BANK & TRUST COMPANY $6m 7.0%

The filing reports no cash collateral position against this loan. Collateral taken in a form the fund does not hold as a position does not appear in N-PORT, so this is silence rather than absence. What the collateral figure can and cannot show. Every quarter VOO has filed, with each borrower: VOO.json · all funds.

Since the previous filing

2026-03-31 → 2026-06-30

505 positions became 507: 10 added (0.9% of the fund at the later date), 8 dropped (0.5% at the earlier date). Half the sum of all weight changes, a turnover proxy: 8.8%. Positions are matched on identifiers, so a security whose identifier changed shows as one drop and one add. Every filing of VOO compared this way, as a feed: changes.xml · all funds: filings received.

Largest increases2026-03-312026-06-30Largest decreases2026-03-312026-06-30
Micron Technology Inc0.68%2.02% Microsoft Corp4.91%4.29%
Advanced Micro Devices Inc0.59%1.47% Exxon Mobil Corp1.27%0.88%
Intel Corp0.37%1.02% Meta Platforms Inc2.23%1.92%
Applied Materials Inc0.48%0.89% Netflix Inc0.72%0.47%
Lam Research Corp0.48%0.84% Chevron Corp0.69%0.48%
Sandisk Corp0.17%0.52% Walmart Inc0.97%0.77%

New: Marvell Technology Inc (0.40%), Honeywell International Inc (0.11%), Honeywell Aerospace Inc (0.11%), Flex Ltd (0.09%), Carnival Corp Ltd (0.06%), Casey's General Stores Inc (0.05%). Gone: Honeywell International Inc (0.26%), Carnival Corp (0.05%), Coterra Energy Inc (0.05%), DuPont de Nemours Inc (0.03%), Hologic Inc (0.03%), EPAM Systems Inc (0.01%).

Asset categories and pricing

as of 2026-06-30

99.65% equity, 0.35% short-term investment as filed; 100.0% carried at a quoted market price (fair-value level 1). Categories and levels are the filer's; what a low level-1 share does and does not mean is in the measure's page.

Derivative exposure and counterparties

as of 2026-06-30

A position count cannot describe a fund that uses derivatives, because a swap is filed at its unrealised gain, not its exposure. These are the notionals the fund itself reported, against net assets of $1.67T. Notional of an interest-rate or currency swap is not equity exposure.

99.75%Stocks held directly
0.2%Swap notional (11)
0.05%Futures notional (1)
100%Sum, % of net assets
Swap counterpartyNotional% of net assets
Bank of America NA$3.38B0.2%
Goldman Sachs International$64M0%
JPMORGAN CHASE BANK, NATIONAL ASSOCIATION$59M0%
CITIBANK, NATIONAL ASSOCIATION$20M0%

Financing leg as filed: the fund pays OBFR01 + 0% on $3.52B of long swap notional . Issuers fill the spread field differently (some file the all-in rate), so compare within an issuer, not across.

Full detail for every fund that files derivatives: leverage.json (CC BY 4.0).

Neighbours by effective holdings, equity funds

10

Every measured equity fund lined up by how many holdings it behaves like; these sit either side of VOO (51.6). Same filings, same arithmetic. Position in this list says nothing about which fund is better.

FundReportsBehaves likeTop tenAs of
AVTM Avantis Total Equity Markets ETF 1,546 50.7 37.35% 2026-05-31
TSPA T. Rowe Price U.S. Equity Research ETF 329 50.8 36.33% 2026-06-30
VV Vanguard Large-Cap Index Fund 444 51.3 36.62% 2026-06-30
IVV iShares Core S&P 500 ETF 507 51.5 36.38% 2026-06-30
SPYI NEOS S&P 500(R) High Income ETF 505 51.5 36.38% 2026-06-30
LRGF iShares U.S. Equity Factor ETF 294 51.8 34.85% 2026-07-31
SUSA iShares ESG Optimized MSCI USA ETF 194 52.1 33.2% 2026-07-31
USPX Franklin U.S. Equity Index ETF 468 52.2 36.21% 2026-06-30
FEOE First Eagle Overseas Equity ETF 76 52.3 30.39% 2026-05-31
OSCV Opus Small Cap Value ETF 65 52.8 27.73% 2026-07-31

Measures applied in the essays

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On video

6

The same filings read aloud in under a minute. Links open YouTube; nothing from it loads on this page.

Essays that examine VOO

120

Mentions are detected across the full text of every article, so an appearance may be a passing comparison rather than the subject. Nothing here is a recommendation to buy or sell — see the disclaimer.