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Nasdaq 100 vs Nvidia over 10 years? (diversify vs concentrate)

This page compares 10 years of steady monthly investing into a Nasdaq 100 ETF (QQQ) and the single stock Nvidia, using the comparison calculator. It places the excess return of a winner revealed only in hindsight alongside the concentration risk behind it.

⚠️ This asset is an individual stock chosen as of today, so past returns can look better than they really were (survivorship bias).

Investment conditions

Asset · Nasdaq 100 ETF (QQQ) vs Nvidia

Method · Comparison

The key is to be especially mindful of survivorship bias when placing 'a single winner revealed in hindsight' alongside 'index diversification.' Concentration in one stock can produce extreme excess return when it works, but the risk that the stock lags or disappears is far greater than for an index. An index has a diversification effect where one stock's failure is offset by others. In the comparison calculator, review each one's ending balance together with its maximum drawdown and recovery period. It matters to see that behind Nvidia's large return lay far deeper drawdowns than the index.

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Why this period and asset

The Nasdaq 100 (QQQ) diversifies across 100 large Nasdaq-listed companies, and Nvidia is one individual stock within that index. Over the past 10 years, Nvidia benefited extremely from the GPU and AI boom, becoming a prime example of a stock that far outpaced the Nasdaq 100 over the same period. But it is crucial that this result comes from picking a stock that 'turned out to be the winner in hindsight.' No one could know ten years ago that Nvidia would rise this way, and many stocks over the same period lagged badly or disappeared. Nvidia also endured several near-halving plunges along the way, in proportion to its large gains.

Caveats & limits

This comparison involves an individual stock whose success is confirmed in hindsight, so survivorship bias is very strong. Only the apparent winner stands out; the many stocks that failed over the same period do not appear here. Read this as 'the result when you happen to pick a winner,' not as 'this is what concentrating in one stock does.' Individual stocks carry far deeper drawdowns and concentration risk than an index. Past performance does not guarantee the future, and in real investing, fees, taxes, and exchange rates (for dollar-denominated assets) affect outcomes. This page recommends no purchase; it is educational material for understanding the difference between diversification and concentration.

Data sources & limits

  • This asset is an individual stock chosen as of today, so past returns can look better than they really were (survivorship bias).
  • Trading fees and taxes are not reflected — figures are pre-tax.
  • Based on historical data; does not guarantee future returns.

Frequently asked questions

So is concentrating in one stock better than an index?

You should not conclude that. Nvidia's large excess return comes from being a winner confirmed in hindsight—it could not be known ten years ago. Always account for survivorship bias: stocks that failed over the same period do not appear on screen.

What is the advantage of index diversification?

An index has a diversification effect where one stock's failure is offset by others. Unlike a single stock, one company's slump does not dictate the whole, so drawdowns and concentration risk are relatively smaller.

What should I use as the basis for comparison?

Don't look only at the final return; also review maximum drawdown, time underwater, and recovery period. It matters to check that the more an individual stock gained, the deeper its mid-course drawdowns may have been.

Related scenarios

📋 结果基于历史数据计算,过去的收益不代表未来的收益。

📋 本服务旨在帮助理解投资、供教育之用,并非投资建议。

⚠️ 以当前代表性资产计算,可能与当时的市场构成不同。

⚠️ 各资产的波动性与风险水平不同,仅凭收益率无法判断孰优孰劣。