Calculator Guide
VOO vs QQQ
VOO and QQQ are both popular U.S.-listed ETFs, but they are built around different indexes. VOO tracks broad S&P 500 exposure, while QQQ tracks the Nasdaq-100 and can be more concentrated in technology and growth-oriented companies.
What VOO and QQQ are
VOO is a Vanguard ETF designed to track the S&P 500 Index, which includes large U.S. companies across multiple sectors. QQQ is the Invesco QQQ Trust, which tracks the Nasdaq-100 Index. The Nasdaq-100 excludes financial companies and often has heavier exposure to technology, communication services, and large growth companies. Because the underlying indexes are different, a VOO vs QQQ backtest is not just comparing two tickers; it is comparing two styles of U.S. equity exposure.
Who this comparison is useful for
This comparison is useful for users who want to understand how broad-market exposure and Nasdaq-100 exposure behaved under the same DCA assumptions. It can also help users study concentration risk, drawdowns, valuation cycles, and the effect of different sector weights. The page does not recommend VOO or QQQ; it gives context for using the calculator responsibly.
Example use case
A user might test investing $1,000 per month from 2015 to 2025 into VOO and QQQ. The comparison keeps the monthly amount and time period the same, then shows how the two historical paths differed. In some periods, growth-heavy exposure may look stronger; in others, concentration and drawdowns can matter more. Changing the start or end date can materially change the outcome.
How the backtest works
The DCA backtest converts each monthly contribution into estimated shares using monthly prices generated from historical daily adjusted close data where available. It then calculates final value, total invested, profit, total return, annualized return estimate, and max drawdown. A comparison chart shows how both portfolios changed over time. If data is unavailable, the tool labels sample data rather than presenting it as real historical performance.
Fees, dividends, taxes, and currency limitations
VOO and QQQ can have different expense ratios, dividend yields, holdings, index rules, spreads, and tax characteristics. Real investor returns may also differ because of dividend reinvestment timing, brokerage fees, withholding tax, local tax rules, execution price, and currency conversion. The calculator is useful for comparing historical price-based scenarios, but it cannot capture every account-level detail.
Risk and disclaimer
VOO and QQQ can perform very differently because market leadership changes over time. A strong historical period for Nasdaq-100 exposure does not guarantee future results. This page is educational only, not financial advice, and not a recommendation to buy, sell, or hold either ETF.