Portfolio lab
Stock return calculator.
Plan exit prices before you trade.
Benchmark to beat: 10% annual return
Use the calculator to plan each exit. Use the tracker to roll every completed sale into one yearly profit score and compare it against this benchmark.
Beat 10%
Pricing practice
Save a limit-order prediction, then review it after the next trading day.
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Actual result update
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Price chart
Market data by TradingViewEnter a ticker to load the chartExample: IBM or NASDAQ:MSFT
Type the actual closing price after the trading day; day high/low are optional.
Showing all saved predictions.
Stock notes
Keep what you learn about each stock — one insight per line. Each note is stamped with the date you added it and listed newest first; filter by ticker, edit or delete anytime.
New lines stack under a ticker with today's date. Use Edit to revise a ticker's notes.
Profit tracker
Save actual sales here. Everything rolls into one yearly profit score so you can see whether your trading is beating the 10% benchmark.
Swing trade practice
Log a completed swing trade to see its profit, return and annualized return, then add reasons, a note and a chart to reflect on why it played out that way.
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Trade outcome
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- Total cost
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- Days held
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- After-tax profit
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- Profit %
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- Annualized %
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Enter buy/sell prices, shares and both dates; add reasons, a note and a chart to reflect.
Showing all saved swing trades.
Saved trades stay in this browser on this device. Annualized return assumes the same after-tax return could be repeated and compounded throughout the year. The combined annual return is weighted by each stock's cost basis, so bigger positions matter more. This is a planning calculator, not a forecast or financial advice.