Your odds shouldn’t come from one guess.
Most options calculators price your whole trade off a single, borrowed volatility number. We replaced that guess with the market’s own probability distribution, built from every strike quoted in the chain. More accurate odds. More accurate Greeks. More accurate pricing before expiration.
Two ways to guess where a stock is headed.
Only one of them actually reads the market.
- Borrows the implied volatility of whichever leg happens to expire soonest.
- Assumes a plain, symmetric curve. A crash and a rally are treated as equally likely.
- Every strike in your trade gets priced off that same one number.
- Reads every strike and expiration in the live chain, not just one.
- Recovers the market’s real skew: crash protection is priced richer than upside, and the odds reflect that.
- The same real curve feeds your probabilities, your Greeks, and your pricing before expiration. Not just the pretty chart.
Most trades don’t go the distance.
Most positions are closed before expiration, so what matters most is what the trade is worth now, not just at expiry.
Your sell today curve and the price and time heatmap are repriced leg by leg, off the volatility the market actually quotes for each specific strike. Not one borrowed number stretched thin across every leg you own.
Your Delta, Vega, and Theta are only as good as the volatility used to compute them. Price a downside put with an upside call’s cheaper volatility, and your Greeks quietly understate how exposed you really are.
The same math institutional trading desks use, not a retail shortcut.
Every strike’s implied volatility is fit into one smooth, arbitrage-free curve using the same volatility smile approach used on professional derivatives desks.
That curve is mathematically inverted to recover the market-implied probability distribution directly from real option quotes.
Real-world drift is then layered in through a rigorous, constraint-based projection, so the final odds reflect how markets actually price risk.
Trade on what the market is actually pricing.
Open Your CalculatorFull chain pricing runs wherever a live option chain is connected.