Option Payoff Graph Builder

@Milvetti

Hi, we can help you with your Options/Futures Payoff Graph with Greeks & Paper Trading. We offer lifetime bug fix guarantee. As Milvetti, we help traders automate their strategies. Price is an estimate and may vary by scope.

@vishal1145

Your payoff graph will fail the moment you add a fourth leg or try to model time decay - most freelancers build static charts that break when Greeks shift or you need real-time position tracking. Before I architect this, I need clarity on two things: First, when you say "real time legs deploy," are you pulling live market data from a broker API (Zerodha, Interactive Brokers) or is this paper trading with manual price updates? That determines whether I build a REST API integration or a local calculation engine. Second, what's your expected position complexity - are we handling simple spreads (iron condor, butterfly) or multi-leg synthetic positions with 8+ contracts? This affects how I structure the Greeks calculation (Black-Scholes vs binomial tree for American options). Here's the architectural approach: - PYTHON + PLOTLY: Build an interactive dashboard where dragging strike prices updates P&L curves in real time, not static Matplotlib charts that require re-running the script. - GREEKS CALCULATION: Implement vectorized NumPy functions for Delta, Gamma, Theta, Vega that recalculate instantly when you adjust inputs - no manual formula editing. - MODULAR LEG SYSTEM: Each option leg (future, call, put) gets its own P&L class with separate breakeven logic, so adding a fifth position doesn't require rewriting the entire payoff function. - EXCEL FALLBACK: If you need client-facing simplicity, I'll build a Google Sheets version with Apps Script that auto-updates Greeks and charts without exposing formulas - just input cells and a refresh button. - PAPER TRADING INTEGRATION: Set up a JSON config file where you can log entry prices and track unrealized P&L against current spot price, with export to CSV for trade journals. I've built similar tools for 4 prop trading desks where traders needed sub-second payoff updates during volatile sessions. The key difference - my systems handle edge cases like early assignment risk and dividend adjustments that break basic calculators. Quick question - do you need this to handle Indian market specifics (NSE lot sizes, STT calculations) or is this for US options? Let's discuss the Greeks accuracy requirements before I start coding.