# VOO vs VTI VOO and VTI overlap by 88.1% of their weight, in the 502 companies both hold, by the SEC Form N-PORT filings of both for the period ended 2026-06-30. Vanguard S&P 500 ETF against Vanguard Total Stock Market ETF. Canonical page: https://tickerinside.com/compare/voo-vs-vti/ Prices through 2026-10-16. VOO holdings from its SEC Form N-PORT for the period ended 2026-06-30, filed 2026-08-28; VTI holdings from its SEC Form N-PORT for the period ended 2026-06-30, filed 2026-08-28. Licence: CC BY 4.0, attribution to TickerInside. ## The short answer Owning both is close to owning VTI twice. VTI already contains 99.9% of VOO by weight; what the pair adds is the 2981 smaller companies VOO does not hold, which are 11.7% of VTI. ## Key figures | Measure | Value | | --- | --- | | Holdings overlap by weight | 88.1% | | Companies held by both | 502 | | Share of VOO held in common | 99.9% | | Share of VTI held in common | 88.3% | | Correlation of weekly returns, 3 years | 1.00 | | Cost per year | VOO 0.03%, VTI 0.03% | | Return, 3 years | VOO 90.4%, VTI 88.6% | | Worst fall, 3 years | VOO -16.7%, VTI -17.4% | | Volatility, annualised | VOO 14.2%, VTI 14.4% | | Positions | VOO 504, VTI 3483 | ## Analysis ### VOO sits inside VTI rather than beside it The number that matters here is not the 88.1% overlap, it is the asymmetry behind it. Nearly all of VOO, **99.9%** of its weight, is inside VTI. Only 88.3% of VTI is inside VOO. VTI is VOO plus a tail: 3483 positions against 504, and the 2981 companies VOO does not hold are mid and small caps that together make up 11.7% of the fund. ### The tail has cost about two points in this stretch That tail is why the two funds are not identical, and also why the difference has been small. Over three years VOO returned 90.4% and VTI **88.6%**: smaller companies have lagged large ones over this window, which is a fact about the window rather than about smaller companies. Volatility was 14.2% against 14.4% and the worst fall -16.7% against -17.4%. ### What VTI holds that VOO is not allowed to Where the pair does differ: VTI holds names VOO cannot, because the S&P 500 requires profitability and a committee vote. Snowflake, Cloudflare and Cheniere sit in VTI and not in VOO. The whole US market against the part a committee has admitted is the entire difference, and it weighs **11.7%** of VTI. ## Largest positions held by both | Ticker | Company | In VOO | In VTI | Counted as overlap | | --- | --- | --- | --- | --- | | NVDA | Nvidia | 7.51% | 6.36% | 6.36% | | AAPL | Apple | 6.59% | 5.87% | 5.87% | | MSFT | Microsoft | 4.3% | 3.83% | 3.83% | | AMZN | Amazon | 3.62% | 3.19% | 3.19% | | GOOGL | Alphabet Class A | 3.25% | 2.9% | 2.9% | | AVGO | Broadcom | 2.77% | 2.47% | 2.47% | | GOOG | Alphabet Class C | 2.59% | 2.28% | 2.28% | | MU | Micron Technology | 2.02% | 1.8% | 1.8% | | META | Meta Platforms | 1.92% | 1.71% | 1.71% | | TSLA | Tesla | 1.84% | 1.64% | 1.64% | | LLY | Eli Lilly | 1.47% | 1.4% | 1.4% | | AMD | Advanced Micro Devices | 1.47% | 1.31% | 1.31% | | BRK.B | Berkshire Hathaway | 1.42% | 1.24% | 1.24% | | JPM | JPMorgan Chase | 1.26% | 1.12% | 1.12% | | JNJ | Johnson & Johnson | 0.95% | 0.84% | 0.84% | ## Covariance and correlation Covariance is annualised and expressed in percent squared, so the diagonal is each fund's variance. Dividing the off-diagonal by the two volatilities returns the correlation. | | VOO | VTI | | --- | --- | --- | | VOO | 202 | 203.2 | | VTI | 203.2 | 207 | Correlation over 1, 3 and 5 years: 0.99, 1.00, 1.00. ## Method How every figure is produced: https://tickerinside.com/how-the-numbers-are-produced/ Machine readable version of this comparison: https://tickerinside.com/api/v1/compare/voo-vs-vti.json ## Cite this page TickerInside, VOO vs VTI, holdings from VOO's SEC Form N-PORT for the period ended 2026-06-30, filed 2026-08-28, and VTI's SEC Form N-PORT for the period ended 2026-06-30, filed 2026-08-28, https://tickerinside.com/compare/voo-vs-vti/, CC BY 4.0 TickerInside (https://tickerinside.com/compare/voo-vs-vti/)