Buying a naked call or put is simple, but you pay full premium and face full time decay. Selling a naked option collects premium, but the risk is unlimited. Vertical spreads sit in between: defined risk, defined reward, and lower cost.

This guide explains two of the most useful spreads, the bull call spread and the bear call spread, how they differ, when traders use each, and how to build them for NIFTY, BANKNIFTY and SENSEX.

Bull call spread

Setup (example): NIFTY at 25,000.

• Buy 25,000 CE at ₹150
• Sell 25,200 CE at ₹70

Net cost (debit): ₹80.

When traders use it: they expect a moderate rise and want to cut the cost and time decay of a plain call.

Bear call spread

Setup (example): NIFTY at 25,000.

• Sell 25,200 CE at ₹70
• Buy 25,400 CE at ₹25

Net credit received: ₹45.

When traders use it: they expect the index to stay below a resistance level, or fall. Time decay works in their favour.

Prices are illustrative.

Side by side

Build either spread on OPIFY

1. Open the Strategy Builder.
2. Pick Bull Call Spread or Bear Call Spread from the ready strategies, or add the two legs yourself.
3. Adjust strikes and check max profit, max loss, risk-reward, breakeven, POP and margin.
4. Use Estimated P&L to see the result if the index reaches your target before expiry.

Common mistakes

• Choosing strikes too far apart, which raises cost and risk.
• Choosing strikes too close, which leaves too little profit.
• Ignoring liquidity on the far strike.
• Holding to expiry when most of the profit is already there.

Frequently asked questions

Which is better for beginners?

Both have defined risk. Many beginners find the bull call spread easier to understand because it works like a cheaper call.

Can I test spreads on historical data?

Yes. Use the options backtester to run either spread across months or years of NIFTY, BANKNIFTY or SENSEX data.

This article is for education only and is not investment advice. Options trading involves risk.