Arthfy
Vertical spreads
Neutral to bearish
Credit
Risk: Defined both ways

Bear call spread

Also called: Credit call spread, Call credit spread

Sell a call and buy a higher-strike call on the same expiry: keep the credit below the short strike, with the loss capped by the bought call.

Payoff sketch (per unit, index points)
At expiry
Today (7 days left)
−100+024,40024,60024,80025,00025,20025,40025,600Underlying at expirySpot 25,000BE 25,170
Net premium

Credit 70 pts

Max profit

+70 pts (₹4,574 per lot)

Max loss

−130 pts (₹8,426 per lot)

Breakeven

25,170

Legs: Sell CE ATM +100 · Buy CE ATM +300. 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

A short call with a ceiling on the loss: the higher call pays everything above its strike.

Index calls usually trade at lower implied volatility than puts the same distance away, so call credit spreads collect less than put credit spreads for the same distance.

When traders use it

  • A view that the price will stay below the short strike, with a known maximum loss.
  • The upper half of an iron condor.

Greeks

DeltaNegative.
GammaNegative near the short strike.
ThetaPositive while the price is below the short strike.
VegaNegative, smaller than a naked call's.

Profit, loss and margin

Max profitThe net credit less charges, when the underlying settles below the short strike.
Max loss(Strike gap − net credit) × quantity, when it settles at or above the long (higher) strike.
BreakevenShort strike + net credit.
MarginRoughly the maximum loss once the long call is in.

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.
  • STT is charged on the premium when an option is sold (0.15% of premium from 1 April 2026 in Arthfy's cost model). A short option left to expire, in or out of the money, is not charged STT again at settlement.
  • Since 20 November 2024 an extra 2% extreme-loss margin applies to short index options on their expiry day, so a position carried into expiry morning can need more margin than it did the day before.
  • Since 20 November 2024 each exchange keeps one weekly index expiry: NIFTY on NSE and SENSEX on BSE. Since September 2025 NSE contracts expire on Tuesdays and BSE contracts on Thursdays. BANKNIFTY, FINNIFTY, MIDCPNIFTY and stock options expire monthly (NSE on the last Tuesday). A holiday moves the expiry to the previous trading day.

Arthfy numbers

Arthfy numbers
Bear call spread: what it did since 2016
Bear call spread, 30 delta, wing 2 strikes beyond, entered 8-15 days before expiry.
0-2 d
3-7 d
8-15 d
16-30 d
31-45 d
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

Single options
Short call (naked)
For education: how the structure works and what it did historically, not a recommendation to trade it.