P&L, returns, CAGR, XIRR, position sizing, tick-size rounding and circuit limits — plus a real Indian brokerage & charges calculator (STT, GST, SEBI, stamp) with discount-broker presets. Now with Black-Scholes options pricing & greeks, implied volatility, and portfolio analytics (Sharpe, Sortino, max drawdown).
Zero-dependency and isomorphic — safe to import on the server, in the browser, on the edge and in React Native. It tree-shakes, so you only ship what you import.
Looking for the complete API and more examples? The npm page and GitHub README carry the full reference — or grab the PDF.
