Arthfy
Ratios & backspreads
Strongly bullish
Debit or credit
Risk: Defined: worst at the long strike

Call ratio backspread

Also called: Call backspread, 1x2 call backspread

Sell one call and buy two higher-strike calls: unlimited gain on a strong rally, a small result on a fall, and the worst outcome at the bought strike.

Payoff sketch (per unit, index points)
At expiry
Today (7 days left)
−200+0+20024,40024,60024,80025,00025,20025,40025,600Underlying at expirySpot 25,000BE 25,421
Net premium

Debit 21 pts

Max profit

Unlimited above the chart

Max loss

−221 pts (₹14,371 per lot)

Breakeven

25,421

Legs: Sell CE ATM · 2× Buy CE ATM +200. Illustration, not live prices: an index at 25,000, strikes 100 points apart, Black-Scholes premiums at 13% implied volatility, 7 days to expiry, 6.5% interest, no skew and before charges. Rupees per lot use a NIFTY lot of 65.

How it works

The sold call pays for the two bought calls. A fall leaves all three worthless (keeping any credit); a big rally runs on the extra long call; a moderate rise to the bought strike is the worst case.

When traders use it

  • Expecting a large upside move, with little cost if wrong on direction.

Greeks

DeltaSmall at entry, growing positive on a rally.
GammaPositive near and above the bought strike.
ThetaNegative near the bought strike.
VegaPositive.

Profit, loss and margin

Max profitUnlimited above the upper breakeven.
Max loss(Strike gap − net credit, or + net debit) × quantity, at the bought strike.
BreakevenUpper: bought strike + strike gap − net credit (or + net debit). Lower, only if entered for a credit: sold strike + credit.
MarginThe short call is covered by one of the long calls, so little beyond the debit.

In India

  • SPAN margins the whole position, so a defined-risk spread usually blocks far less than its short leg alone. Brokers grant the hedge benefit only when the protective leg is actually in the account, which is why the long leg is usually placed first.
  • A long option that finishes in the money is exercised automatically. STT is then charged on its intrinsic value at the exercise rate (0.15% from 1 April 2026 in Arthfy's cost model), instead of the sale rate on the premium (also 0.15%) that applies when the option is sold before the close. See the lesson on the STT exercise trap.

Arthfy numbers

Arthfy's history does not cover backspreads yet.

Try it in the F&O hub
Opens the tool with this structure on today's NIFTY chain. Reading is free with an Arthfy account; some runs use free attempts.
Open in the builderPayoff, Greeks, scenario grid and charges on today's NIFTY chain
Backtest since 2016Daily data, every NIFTY expiry
Replay on expiry daysMinute data since October 2024
Open the option chainLive premiums, IV and Greeks

Related

Ratios & backspreads
Call ratio spread
For education: how the structure works and what it did historically, not a recommendation to trade it.