Enter any stock ticker, pick a historical date, and set an investment amount. The Time Machine calculates your exact returns today — including stock splits, dividends, and market crashes — using real financial data.
Quick Answer
The Time Machine is a free historical investment calculator that shows what any stock investment would be worth today. Enter a ticker symbol, select a past date, and specify an amount — the tool fetches real historical prices, adjusts for stock splits and dividends, and calculates your exact total return, annualized performance, and current portfolio value using data from FMP, Yahoo Finance, and Alpha Vantage.
Choose a stock ticker, select a historical investment date, and enter the dollar amount you want to simulate. The system validates the ticker against 35,000+ US stocks.
The engine pulls real historical price data from Financial Modeling Prep (FMP), cross-references with Yahoo Finance for split and dividend adjustments, and validates with Alpha Vantage.
Using split-adjusted prices, the tool computes your total shares purchased, accounts for all stock splits and dividend reinvestments, and calculates total return, annualized return, and current value.
View a detailed breakdown of your hypothetical investment: original cost, current value, total gain/loss, annualized return percentage, and a visual timeline of your portfolio growth.
We aggregate and cross-verify historical price data from multiple institutional-grade financial APIs.
All data verified and cross-referenced. Past performance does not guarantee future results. Not financial advice.
The Time Machine is a free historical investment simulator. You enter a stock ticker (e.g., AAPL, NVDA), select a past date, and specify a dollar amount. The tool then calculates exactly what that investment would be worth today, including all stock splits, dividend reinvestments, and price changes using real market data.
The calculations use real historical price data from institutional-grade financial APIs (FMP, Yahoo Finance, Alpha Vantage). All prices are split-adjusted and dividend-adjusted for accuracy. However, minor discrepancies may exist due to rounding, data source timing differences, or historical data availability. This is an educational tool, not a certified financial statement.
Yes. The Time Machine uses split-adjusted and dividend-adjusted historical prices from multiple data sources. When calculating returns, it factors in stock splits and dividend payments to give you a more complete picture of total return — not just price appreciation.
The Time Machine supports historical data going back 20+ years for most major US stocks. Coverage depends on when the company went public and data availability from our providers. Some newer stocks may have shorter histories, while established companies like Apple or Microsoft have data going back decades.
Yes, the Time Machine is 100% free during our beta period. There is no paywall, no credit card required, and no limit on the number of simulations you can run. Simply sign in with your free account and start exploring historical investment scenarios.
No. The Time Machine is strictly an educational tool designed to help investors understand historical market performance. Past performance does not guarantee future results. It is NOT investment advice and should not be used as the sole basis for any investment decision. Always consult a licensed financial advisor.
Designed by humans, created by StockExpertAI