0 DTE SPX Options Analysis, Backtesting And Trading Simulator
A free, paper-trading platform for zero-days-to-expiration SPX index options
Replay any past session or trade today's market in real time, build and backtest strategies over years of recorded data, and drive it all over a REST + WebSocket API
View streaming real-time SPX price, its expected move and VIX throughout the trading session.
- SPX
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- Expected Move
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- VIX
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Explore historical market data and practice trading — place orders, manage positions, and track performance.
Pick a date to get started →
Everything you get, free
Create a free account to unlock the full platform — there's nothing to pay for, ever.
Trading Simulator
Practice multi-leg 0 DTE orders at real prices — positions, P&L, Greeks, and automatic settlement.
Live Paper Trading
Trade today's session against the real-time market — quotes, fills, and P&L move tick by tick.
Strategy Builder
Turn a setup into a saved strategy with templates, delta-based strikes, and profit/stop/time exits — no code.
Backtesting
Every strategy gets results over the full recorded history — equity curve, Sharpe, drawdown, and per-session drill-downs.
900+ Trading Days
Replay the full archive at 1-second granularity — option chains, Greeks, IV, and bid/ask snapshots.
REST + WebSocket API
Drive everything programmatically — market data, simulations, orders, and real-time streaming. Check out the documentation.