Preview mode · synthetic examples.

Source: BasisPilot built-in test holdings, not official Vanguard or iShares holdings. Example date: 2026-08-01 (UTC), not a fund disclosure date.

Coverage: 20 ETFs with partial synthetic equity rows. Unrepresented weight does not imply cash or non-equity assets. Row resolution coverage applies only to included examples, not the full fund.

Real data is unavailable: data-use authorization, holdings adapters, and snapshot integration are required.

Fixture comparison · development preview

VOO vs IVV

Vanguard S&P 500 ETFvsiShares Core S&P 500 ETF

Source statusFixture data
Weighted overlap38.4%by reported portfolio weight
Shared holdings12resolved equity securities
VOO holdings shared100.0%12 / 12
IVV holdings shared100.0%12 / 12

Exposure

Shared vs unique exposure

VOO38.9% recognized
Shared weight · unique recognized equity weight
IVV38.8% recognized
Shared weight · unique recognized equity weight

Shared exposure

Top shared holdings

HoldingCompanyVOOIVVSharedDifference
AAPLApple Inc.7.1%6.9%6.9%+0.20 pp
MSFTMicrosoft Corp.6.6%6.8%6.6%-0.20 pp
NVDANVIDIA Corp.6.1%5.8%5.8%+0.30 pp
AMZNAmazon.com Inc.3.8%3.8%3.8%+0.00 pp
GOOGLAlphabet Inc.3.5%3.7%3.5%-0.20 pp
METAMeta Platforms Inc.2.6%2.6%2.6%+0.00 pp
AVGOBroadcom Inc.2.4%2.4%2.4%+0.00 pp
BRK.BBerkshire Hathaway Inc.1.8%1.8%1.8%+0.00 pp
JPMJPMorgan Chase & Co.1.4%1.4%1.4%+0.00 pp
XOMExxon Mobil Corp.1.3%1.3%1.3%+0.00 pp

Holdings detail

Shared and unique holdings

HoldingCompanyVOOIVVSharedDifference
AAPLApple Inc.7.1%6.9%6.9%+0.20 pp
MSFTMicrosoft Corp.6.6%6.8%6.6%-0.20 pp
NVDANVIDIA Corp.6.1%5.8%5.8%+0.30 pp
AMZNAmazon.com Inc.3.8%3.8%3.8%+0.00 pp
GOOGLAlphabet Inc.3.5%3.7%3.5%-0.20 pp
METAMeta Platforms Inc.2.6%2.6%2.6%+0.00 pp
AVGOBroadcom Inc.2.4%2.4%2.4%+0.00 pp
BRK.BBerkshire Hathaway Inc.1.8%1.8%1.8%+0.00 pp
JPMJPMorgan Chase & Co.1.4%1.4%1.4%+0.00 pp
XOMExxon Mobil Corp.1.3%1.3%1.3%+0.00 pp
LLYEli Lilly & Co.1.2%1.2%1.2%+0.00 pp
VVisa Inc.1.1%1.1%1.1%+0.00 pp

Weight comparison

Largest weighting differences

HoldingCompanyVOOIVVDifference
NVDANVIDIA Corp.6.1%5.8%+0.30 pp
AAPLApple Inc.7.1%6.9%+0.20 pp
MSFTMicrosoft Corp.6.6%6.8%-0.20 pp
GOOGLAlphabet Inc.3.5%3.7%-0.20 pp
AMZNAmazon.com Inc.3.8%3.8%+0.00 pp
METAMeta Platforms Inc.2.6%2.6%+0.00 pp
AVGOBroadcom Inc.2.4%2.4%+0.00 pp
BRK.BBerkshire Hathaway Inc.1.8%1.8%+0.00 pp
JPMJPMorgan Chase & Co.1.4%1.4%+0.00 pp
XOMExxon Mobil Corp.1.3%1.3%+0.00 pp

Data quality

Snapshot and coverage

VOOIVV
Synthetic example date (UTC)Aug 1, 2026Aug 1, 2026
Recognized equity weight38.9%38.8%
Unresolved equity weight0.8%0.8%
Resolved securities1212
Included row resolution coverage98.0%98.0%
SourceBasisPilot synthetic fixturesBasisPilot synthetic fixtures
Fund issuer (not data source)VanguardiShares
Included synthetic equity weight39.7%39.6%
Weight basisSynthetic % of fundSynthetic % of fund
Source scopeSynthetic partial equity rowsSynthetic partial equity rows
Valuation methodFixtureFixture

Comparability

Data comparability · Compatible

Interpretation

What this result means

Weighted overlap adds the smaller reported weight for each recognized equity security held by both ETFs. It measures shared reported portfolio weight at the selected snapshots; it does not measure return correlation or predict future performance.

Limitations

This page uses synthetic fixture holdings for product development. Results are not current ETF holdings and should not be used for investment decisions. Real provider data remains disabled until data-use authorization, retention rules, holdings adapters, and snapshot integration are completed.