Strikes and premiums from the chain
Choose the underlying and expiry: the chain loads with live premiums; click a premium to add that leg.
Add the legs of the strategy: buy or sell, call, put or future, the strike, the premium and the lots. The payoff is the profit or loss if the underlying closes at each price on expiry — the shape, the breakevens and the most you can make or lose.
₹
Strategy Legs
TypeSideStrike / entryPremiumLots
8%
± this much around the price nowResults
Max profit₹7,150maximum possible gain at expiry
Max loss−₹5,850maximum downside risk at expiry
Breakeven25,890.00where the payoff crosses zero
Net premium−₹5,850debit paid
P&L if expiry at today's price−₹5,850underlying at ₹25,800.00
Legs2Buy 1× 25,800 CE @ 180.00 · Sell 1× 26,000 CE @ 90.00
Payoff at expiry only: before expiry the position's value also carries time value and volatility. Margins for short legs are not included — the F&O margin tool prices them from the feed.
Payoff at expiry
P&L in ₹ for 2 lots of 65P&L by expiry price
| UNDERLYING AT EXPIRY | VS NOW | P&L |
|---|---|---|
| ₹23,736.00 | −8.0% | −₹5,850 |
| ₹23,994.00 | −7.0% | −₹5,850 |
| ₹24,252.00 | −6.0% | −₹5,850 |
| ₹24,510.00 | −5.0% | −₹5,850 |
| ₹24,768.00 | −4.0% | −₹5,850 |
| ₹25,026.00 | −3.0% | −₹5,850 |
| ₹25,284.00 | −2.0% | −₹5,850 |
| ₹25,542.00 | −1.0% | −₹5,850 |
| ₹25,800.00 | 0.0% | −₹5,850 |
| ₹26,058.00 | +1.0% | ₹7,150 |
| ₹26,316.00 | +2.0% | ₹7,150 |
| ₹26,574.00 | +3.0% | ₹7,150 |
| ₹26,832.00 | +4.0% | ₹7,150 |
| ₹27,090.00 | +5.0% | ₹7,150 |
| ₹27,348.00 | +6.0% | ₹7,150 |
| ₹27,606.00 | +7.0% | ₹7,150 |
| ₹27,864.00 | +8.0% | ₹7,150 |
Assumptions & formula
Per leg at expiry price S: call
± (max(S − K, 0) − premium) × lot × lots, put ± (max(K − S, 0) − premium) × lot × lots, future ± (S − entry) × lot × lots — plus for a buy, minus for a sell. The strategy is the sum of its legs; breakevens are where that sum is zero.- Premiums are per unit, as quoted; the lot size multiplies everything.
- Brokerage, STT and other charges are not deducted (the Brokerage & charges tool has them).
- European-style settlement on expiry (NSE and BSE index options); the payoff ignores early exercise.
Calculators are for information and planning. Outputs depend on the inputs and assumptions you enter and are not a recommendation to buy, sell or hold any security or product. Streetgains Technologies Private Limited is a SEBI Registered Research Analyst (INH000017082); it is not a loan provider, tax adviser or mutual fund distributor.