Strategy Builder
Compose multi-leg option strategies and inspect payoff, Greeks and scenario sensitivity.
Compose
Build leg by leg. Changes reflect in the payoff analysis.
Aggregate Greeks
Repricing at the current level, today…Greek methodology
Delta and gamma per 1 index point, vega per 1 volatility point, theta per 1 calendar day, rho per 1 percentage point of rate — the units pricing.py documents, and the same ones the option-chain page uses. Each leg's volatility is implied from its own entry premium against the reference level above and then held fixed, so these describe the model's sensitivity at that calibration — they are not a forecast of how volatility will move.
Strategy views
The same strategy, read three waysNo price chart of the underlying here — that lives in Charting, and the “View NIFTY on Charting” link at the top of this page opens it. These three views describe THIS strategy’s own arithmetic.
Add legs to see the payoff at a range of settlement prices.
| Settlement | Payoff at expiry |
|---|
The same curve drawn beside the legs, over the same price range, read row by row. Max profit, max loss and the breakevens are NOT read off this table — they are computed analytically from the legs and shown in the payoff panel, because an extreme taken from a sampled table would depend on where the sampling happened to stop.
Select a priceable same-expiry scenario to see target-day and expiry P&L.
Target-day P&L uses the selected date and IV offset; expiry P&L uses the same entered premiums and intrinsic settlement value. Both columns include the same signed leg quantities. These are modeled outcomes, not a forecast or a live quote.
Greeks appear once each leg has a premium to imply a volatility from.
| Leg | IV | Delta | Gamma | Vega | Theta / day | Rho |
|---|
Per leg, signed and scaled by that leg’s own quantity, so the column sums are the aggregate figures in the panel above — the same numbers, split out. A leg whose volatility could not be implied shows blanks with the reason on hover, never a substituted number.
Risk / reward
Ratio note
A finite ratio is unavailable when profit or loss is unbounded.
Premium breakdown (₹)
Entered premiums and reference-level decompositionPremium methodology
Gross premium counts every leg without sign; net premium preserves debit or credit. Intrinsic and time value need a reference level. Brokerage, taxes and slippage are not modeled.
Probability & range
Lognormal model at expiry · not a forecastProbability methodology
The share of a lognormal terminal-price distribution that lands where this strategy's payoff at expiry is positive, integrated numerically over the payoff itself — so a structure that profits in more than one place, or in none, is described correctly rather than assumed to have one profitable band. It is what today's prices imply under Black-Scholes at one volatility held constant. It is not a forecast, and not a statement that this strategy is worth entering.
Strikewise IV & OI
The same chain the bars behind the payoff curve are drawn from| Call OI | Call IV | Strike | Put IV | Put OI |
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Chain methodology
At-the-money row highlighted. Open interest is a real position count and is shown whether or not the contract traded; an implied volatility is shown only where one could actually be derived from a live two-sided quote or a real trade — a blank is a blank, never a substituted number.