Bull Call vs Bull Put
Both are two-leg, defined-risk, moderately bullish spreads with the same payoff shape. They differ in cash flow, in which strikes they use, and in the sign of their vega and theta.
Quick answer: A Bull Call Spread is a debit — you pay ₹162, and time and falling volatility work against you. A Bull Put Spread is a credit — you receive ₹98, and both work for you. The payoff shape is identical; the choice turns on your view of time and volatility, not on cash flow.
The two payoffs, side by side
Bull Call Spread
At expiry, illustrative legs.
Bull Put Spread
At expiry, illustrative legs.
Side by side
| Bull Call Spread | Bull Put Spread | |
|---|---|---|
| Number of legs | Two | Two |
| Net flow | Debit ₹162 | Credit ₹98 |
| Max profit / unit | ₹138 | ₹98 |
| Max loss / unit | −₹162 | −₹202 |
| Breakeven | 24,162 | 23,902 |
| Risk type | Defined | Defined |
| Delta | Positive | Positive |
| Theta | Negative (time hurts) | Positive (time helps) |
| Vega | Long (up-vol helps) | Short (up-vol hurts) |
| Options used | Two calls | Two puts |
| Profit if flat/up | Needs price above BE | Keeps credit above BE |
| Assignment (stock) | Short call, limited | Short put, early-assign risk |
| Cash up front | You pay | You receive |
| What kills it | A fall, or vol drop | A fall below long put |
Identical shape, different plumbing
Plot the two and the payoff shapes are the same: a rising diagonal between two strikes, flat above and flat below, with a defined cap on both profit and loss. Both express a moderately bullish view and both are defined risk. What differs is the plumbing. The bull call spread buys a lower-strike call and sells a higher one, paying a net debit of ₹162. The bull put spread sells a higher-strike put and buys a lower one, receiving a net credit of ₹98. One pays to enter and profits as price rises into the structure; the other is paid to enter and profits by keeping the credit as price stays up. Because one is built from calls and the other from puts, their Greek signs are mirror images — which is where the real decision lives, not in the shape of the graph.
Opposite vega and theta — the real difference
The bull call spread is a net debit and, on these strikes, net long vega and short theta: rising implied volatility helps it, and every day that passes without a move hurts it. The bull put spread is a net credit, short vega and long theta: rising volatility hurts it, and time passing helps it. This is the substance of the choice. If you expect a slow grind higher or a quiet drift in a market where volatility is elevated and likely to fall, the credit structure's positive theta and short vega are working with you. If you expect a brisker move up, perhaps with volatility rising, the debit structure's long vega and directional punch fit better. The bullish direction is common to both; time and volatility are what separate them, and they pull in opposite directions.
The credit is not a cushion — it is the whole profit
The bull put spread is often mis-sold as safer because you receive money up front. The numbers on these strikes refute that. The bull put spread's maximum loss is ₹202 per unit; the bull call spread's is only ₹162. So the credit structure risks more, not less, and its maximum profit is capped at the ₹98 credit itself. The credit is not a buffer you keep on top of gains — it is the entire reward, and the loss beyond it runs to ₹202. Receiving ₹98 feels like a head start, but the position is worth −₹202 at its worst. A debit and a credit describe the direction of the opening cash flow, nothing about how much can be lost. On these strikes the credit spread is the one with the larger defined loss.
Assignment: stock options versus index options
The distinction matters only on physically-settled American stock options. There, the bull put spread contains a short put that can be assigned early — most likely if it goes in the money or around a dividend on the underlying — turning a defined-risk spread into a long-stock obligation overnight until you act. The bull call spread's short leg is a call and carries early-assignment risk in a different way, typically around dividends when the call is deep in the money. On Indian index options — European and cash-settled — neither position can be assigned at all; there is only cash settlement at expiry. So on NIFTY the assignment distinction disappears, while on single stocks it is a genuine, structure-specific hazard the credit side carries more visibly.
Costs and the break-even arithmetic
Each is two legs, four bid-ask spreads round trip, plus brokerage, STT, exchange charges, stamp duty and GST. The bull call spread breaks even at 24,162 — the long call strike plus the ₹162 debit — and pays a maximum ₹138 per unit, ₹138 × 75 = ₹10,350 per NIFTY lot, if the underlying finishes above the short strike. The bull put spread breaks even at 23,902 — the short put strike minus the ₹98 credit — and keeps ₹98 per unit, ₹7,350 per lot, if price stays above that. Note the credit structure's breakeven sits below spot, so it profits even if the underlying merely holds or drifts slightly down, whereas the debit structure needs price to rise past 24,162. That lower breakeven, not the cash flow, is the credit spread's actual structural feature worth weighing.
When Bull Call Spread is the closer fit
The Bull Call Spread is the closer fit when you expect a defined push higher within the life of the trade and want time-and-volatility working with a rising market. It is long vega and its loss (₹162) is smaller than the bull put spread's on these strikes. Accept that it is short theta — every quiet day costs you — and that it needs the underlying to climb past 24,162 to pay, rather than merely holding its ground.
When Bull Put Spread is the closer fit
The Bull Put Spread is the closer fit when you expect the underlying to hold up or drift gently, in a market where volatility is elevated and likely to ease. Its positive theta and short vega then work for you, and its breakeven at 23,902 sits below spot, so it can profit without any rise. Accept that its maximum loss (₹202) is larger than the bull call spread's, that its profit is capped at the ₹98 credit, and the credit is the whole reward, not a cushion.
The honest answer
The honest answer is that these are the same bullish bet wearing different clothes, and the deciding factor is not which one hands you cash. The payoff shapes match; what differs is the sign of vega and theta and, on stock options, assignment exposure. The costly misconception is that a credit is a safety margin — here the credit spread actually carries the larger defined loss (₹202 vs ₹162) and caps its gain at the credit itself. Choose on your read of time and volatility: if you want them working for a market that merely holds, the credit side fits; if you expect a real move up with volatility firm, the debit side does.
Frequently asked questions
Bull call spread vs bull put spread — what's the real difference?
Is the bull put spread safer because I receive money up front?
What is the max profit and max loss on each?
What are the breakevens?
Which one benefits from time passing?
Which one benefits from rising volatility?
Does the bull put spread have early assignment risk?
Are both defined risk?
Which should I use if I think the market just holds steady?
Why do they have the same shape but different strikes?
Which has the bigger maximum loss?
Do costs matter on these spreads?
Voice search & related questions
Bull call spread or bull put spread — which is better?
Is a bull put spread safer since I get paid to open it?
Which one likes time passing?
Do both have limited risk?
If I trade NIFTY, does assignment matter for these?
Read the full guides: Bull Call Spread · Bull Put Spread.
Last reviewed 9 July 2026. Educational content only — not investment advice.