Strota / Bull Call Spread — Bullish, Cheaper than a Naked Call

Bull Call Spread — Bullish, Cheaper than a Naked Call

Buy a lower-strike call, sell a higher-strike call. Reduces cost. Caps upside. Best in high-IV regimes when naked calls are expensive.

Build a bull call spread →

Bull call spread = buy a lower-strike call + sell a higher-strike call, same expiry. Reduces net cost vs the naked call by collecting premium from the short leg. Caps upside at the short strike.

Best in high-IV regimes when naked calls are expensive — the short leg subsidises the long. Trade-off: you give up unlimited upside for ~40-60% cost reduction.

Worked NIFTY example

NIFTY at 22,000. You're moderately bullish for a 1-2% move.

Buy 22,000 CE at ₹100 + Sell 22,200 CE at ₹35. Net debit = ₹65 × 25 = ₹1,625 per lot.

Max profit = (22,200 - 22,000 - 65) × 25 = ₹3,375 per lot, reached if NIFTY closes ≥ 22,200 at expiry.

Max loss = ₹1,625 (net debit), if NIFTY closes ≤ 22,000.

Breakeven = 22,000 + 65 = 22,065. Reward:risk = 3375:1625 ≈ 2:1.

When to prefer bull call spread over naked call

High IV. Naked calls are expensive — the short leg of the spread becomes valuable.

Capped upside acceptable. You expect the move to top out near the short strike anyway.

Lower capital outlay. Same directional view at ~50% of the naked-call cost.

Greeks profile at entry

Net Delta: positive (long Delta from long leg > short Delta from short leg). Net Gamma: positive but smaller than naked call. Net Theta: less negative than naked call (the short leg pays you Theta). Net Vega: positive but smaller than naked call.

Effectively: the spread is 'a naked call with less risk and less reward.' All four Greeks compressed roughly proportionally.

What to do with this: Pick the short strike where you EXPECT NIFTY to top out. If you think NIFTY tops at 22,250, sell the 22,200 CE — you capture most of the move and the short premium offsets cost. If you sell 22,500 you collect very little premium and the spread is mostly equivalent to a naked call.

Common misreads

Choosing strikes too far apart. Wide spreads cost more and offer marginally smaller short-leg subsidy. Tighter spreads (100-200 points on NIFTY) are usually optimal.
Buying the spread in low-IV regimes. Short leg pays little — you're paying nearly naked-call cost for the capped-upside disadvantage. Just buy the naked call in low-IV.
Closing only the long leg before expiry while leaving the short open. You're now naked short — unlimited risk. Close as a package.

← Previous

Long Put

Bear Put Spread

Key takeaways

Buy lower call + sell higher call. Both same expiry.
Caps upside at short strike. Reduces cost by 40-60% vs naked call.
Best in high-IV regimes or when you expect the move to top out.
Reward:risk typically 1.5-3x depending on strike spacing.

Bull call spread — common questions

How wide should the spread be?

On NIFTY, 100-200 points typically. On BANK NIFTY, 200-400 points (BANK NIFTY's strike spacing is 100). Narrower spreads = lower cost but lower max profit. Wider spreads = larger max profit but more expensive.

When should I close before expiry?

Common: at 50-70% of max profit. Why? The last 20-30% of profit takes most of the remaining time and the short-leg Gamma risk grows. Better to take partial gain and free capital.

Can I leg into a bull call spread?

Yes — buy the long leg first if you're confident in the move, then sell the short leg once the underlying has moved up (so you collect more for the short). Risky if the move reverses, but can improve the trade economics significantly.

Is a bull call spread better than a bull put spread?

They have similar payoff but different mechanics. Bull call spread = debit (you pay). Bull put spread = credit (you receive). For directional traders, bull call is more intuitive. For income-oriented traders, bull put captures Theta from day one.