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BullishUnlimited riskExpertShort / Credit

Ratio Call Spread option strategy

Call Ratio Spread is Neutral to Mildly bullish Strategy. In this we expect stock to remain below upper breakeven point.

Payoff at expiry

Nifty, lot size 65 · Nifty future 22,650 · 6 Oct 2026
−60k−40k−20k021,55022,10022,65023,20023,750Nifty
ProfitLossBreakeven

Legs

ActionOptionStrikeLotsQtyPremium
BUYATM Call22,650165₹135.47
SELLOTM Call22,7002130₹112.10
Strikes around the Nifty future; premiums modelled at the current at-the-money IV (live prices were unavailable).

How it works

  1. Buy 1 ATM call at the 22,650 strike for ₹135.47, paying the premium.
  2. Sell 2 OTM calls at the 22,700 strike for ₹112.10 each, collecting the premium.
  3. You receive a net ₹5,767 upfront for the position. Your maximum profit is ₹9,017.
AT EXPIRY

Below 22,839 you profit, up to ₹8,699.

Above 22,839 you lose, and the loss keeps growing as Nifty rises.

Set-up: Buy 1 lot ATM call and Sell 2 lots OTM Calls with same expiration date.

What happens if Nifty moves

Profit or loss at expiry
Nifty at expiryMoveProfit / loss
21,300−6%+₹5,767
21,950−3%+₹5,767
22,400−1%+₹5,767
22,650Unchanged+₹5,767
22,900+1%−₹3,983
23,350+3%−₹33,233
24,000+6%−₹75,483

How the Greeks affect it

DeltaNegative
Gains when Nifty falls, loses when it rises.
GammaNegative
Delta moves against you as Nifty moves, so large moves hurt, especially near expiry.
ThetaPositive
Time decay works for you: the position gains value each day if Nifty holds still.
VegaNegative
A fall in implied volatility helps; a rise hurts.
Signs are for the position as a whole at entry and change as the market and time move.

When to use

When you expect decrease in volatility with stock price remaining range bound.

  • Net credit received act as a cushion for any downside movement in stock.
  • Profitable when stock remains range bound between two strikes as it has higher theta gain.

Things to watch

  • Uncapped risk if stock rises above higher BEP.
  • Managing the trade if stock rises too fast too early.
  • Comparatively complicated trade for intermediate trader.

Ratio Call Spread: questions

What is a Ratio Call Spread strategy?

Call Ratio Spread is Neutral to Mildly bullish Strategy. In this we expect stock to remain below upper breakeven point.

When should you use a Ratio Call Spread?

When you expect decrease in volatility with stock price remaining range bound.

How do you set up a Ratio Call Spread?

Buy 1 lot ATM call and Sell 2 lots OTM Calls with same expiration date.

What is the maximum profit of a Ratio Call Spread?

Maximum Profit limited to difference between the strikes plus( the net credit received) or minus( net debit paid) all multiplied by net long contracts.

What is the maximum loss of a Ratio Call Spread?

Maximum Loss is unlimited above higher breakeven point as you are short more option then being long.

What is the breakeven of a Ratio Call Spread?

With Nifty at 22,650, the example on this page breaks even at 22,839 at expiry.

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