foliostuff
Free stock market tools for traders and investors — no sign-up, just click and open a new tab.
The tools
Portfolio Visualizer
Plug in your tickers and allocations, get a clean chart you can actually screenshot and share without it looking terrible.
Cost Basis Calculator
Buying more? Selling some? See exactly what it does to your average cost before you do it.
Position Sizer
Tell it how much you're willing to lose, where you're getting in, and where you're bailing — it tells you how many shares to buy.
Good stuff around the web
TradingView
Advanced charting, real-time data, and trade ideas
Finviz
Stock screener, heat maps, and market news
FiscalAI
AI-powered financial research and earnings analysis
FRED
Federal Reserve macroeconomic data and charts
How Many Trading Days
See how many trading days are left this year
MarketWatch
Breaking market news, data, and analysis