Nvidia in VOO: How Much of Your Investment Is Actually Nvidia Stock?

Nvidia was 8.4% of VOO at September 30, 2026, the fund's largest holding, ahead of Apple at 7.4%, according to Vanguard's VOO fact sheet. So a 10% move in Nvidia's share price moves VOO by about 0.84% on its own. The weight changes every day with Nvidia's price; Vanguard updates it each month.

Nvidia's live stock price

How much of VOO is Nvidia, and who else is at the top

VOO tracks the S&P 500, which weights each company by its market value. VOO's ten largest holdings at September 30, 2026, as a share of the fund's net assets:

Together those ten were 40.6% of the fund. Apple, Nvidia, Microsoft, Amazon, Alphabet, Meta and Tesla, often called the Magnificent Seven, were 34.7% between them: about a third of a fund that holds 505 stocks. Source: Vanguard's VOO fact sheet, September 30, 2026.

Why one company can carry this much weight

There's no committee deciding how much Nvidia VOO should hold. The index gives each company a share in proportion to its market value, and Nvidia's market value grew enormously with demand for the processors used to train and run AI systems. As its value rose, its weight rose with it, automatically.

How much news about one company or industry moves VOO

A holding's effect on VOO is roughly its weight times its price move. Using VOO's weights at September 30, 2026:

• Nvidia up 10%: VOO up about 0.84%, all else equal.
• The Magnificent Seven all down 5% together: VOO down about 1.74%.
• Information technology stocks (39.7% of VOO) all down 5%: VOO down about 1.99%.
• Energy stocks (3.4% of VOO) all up 5% on an oil price spike: VOO up about 0.17%.

That's why a headline about oil barely registers in VOO while a big day for a handful of technology companies can set the direction of the whole fund. In practice, many stocks move on the same news, so these figures show the scale rather than predict a day's result.

The concentration trade-off

VOO is still far more diversified than owning one stock: no single company's collapse could sink it the way it would sink a one-stock portfolio. But a fund of 505 stocks isn't spread evenly. With about a third of it in seven companies, VOO's results depend on how those companies do more than its holdings count suggests. Adding a technology fund such as QQQ on top increases that concentration rather than diversifying it; see VOO vs QQQ for how much the two overlap. This is educational information, not personalized financial advice.