Bull Call Spread - A Lower-Cost Bullish Trade With a Capped Payoff

Reviewed by Leon Moyer - Published October 9, 2026 - Last reviewed October 9, 2026

A bull call spread is a bullish options strategy that buys one call and sells another call on the same stock with a higher strike and the same expiration. It is a debit spread: you pay to open it, and that net debit is the most you can lose. The sold call lowers the cost and the break-even, but it also caps the profit at the difference between the strikes minus the debit.

The Options Industry Council (OIC) also calls it a debit call spread. If you understood the long call in Call Options Explained, you already know half of this trade.

How does a bull call spread work?

You buy a call at a lower strike (usually at or near the stock price) and sell a call at a higher strike, one contract each:

• The long call is your bullish bet. It gains as the stock rises.
• The short call is sold to help pay for it. In exchange for its premium, you give up every dollar the stock rises above its strike.

Think of the short strike as the price where you would be happy to take your profit. Above it, the long call keeps gaining, but the short call loses exactly as much, so the spread's value at expiration stops at the width.

What is the max profit, max loss and break-even of a bull call spread?

Each one in a sentence, per spread:

• Maximum loss is the net debit times 100: $1.64 x 100 = $164, if XYZ is at or below the long strike at expiration.
• Maximum profit is the strike width minus the net debit, times 100: ($5 - $1.64) x 100 = $336, if XYZ is at or above the short strike at expiration.
• Break-even at expiration is the long strike plus the net debit: $50 + $1.64 = $51.64.

The OIC's strategy page gives the same three formulas. Note the risk and reward here: you risk $164 to make up to $336, about two to one in your favor, but XYZ has to rise at least 3.3% just to break even and 10% to earn the full amount.

Is a bull call spread better than buying a call?

It depends on how far you expect the stock to go. Here is what the short 55 call trades away, using the same 50 call bought alone for $2.24:

• Cost: $164 for the spread versus $224 for the call. The spread risks $60 less.
• Break-even: $51.64 versus $52.24. The spread starts paying 60 cents sooner.
• At $55: the spread makes $336, the call $276. A move to the short strike favors the spread.
• At $60: the call makes $776; the spread is still at $336. A big rally favors the call.

So the bull call spread fits a moderately bullish view with a target. If you expect a large move, or do not want a ceiling, the call alone keeps the upside open. Risk-to-Reward Ratio in Options - What It Tells You and What It Hides takes these comparisons further.

How does a bull call spread behave before expiration?

The table above is for expiration day. Before then, both calls still carry time value, and that changes how the spread trades:

• It moves less than a single call. When XYZ rises, the short call's losses offset part of the long call's gains. That cushions a drop too.
• It rarely reaches full value early. With XYZ above $55, the short 55 call still has more time value than the deeper 50 call, so the spread trades below its $5 width. Under the same model, with XYZ at $57 and 45 days left the spread is worth about $3.86, and with 15 days left about $4.45; only a much larger move or the last few days bring it close to $5. Traders often close for part of the maximum rather than wait.
• Time decay works on both legs. Below the long strike, decay hurts you, as with any long option. Near or above the short strike, the short call's decay starts to help.

What are the risks of a bull call spread?

The loss is limited to the debit, but there are still practical risks:

• Early assignment on the short call. American-style stock options can be exercised any business day. A short call that is in the money just before an ex-dividend date is the most common case. If you are assigned, you are short 100 shares at $55, and your long 50 call still covers them. Spread Width and Early Assignment - Managing a Vertical's Short Leg, later in this module, walks through what to do.
• Expiration near the short strike. If XYZ closes right around $55, you may not know whether the short call will be assigned until after the weekend, as the OIC's strategy page notes. Closing the spread before expiration avoids the guesswork.
• Fees and fills. Two legs mean two sets of commissions and contract fees, and a wide bid-ask spread on either leg costs you on the way in and out. Use one multi-leg limit order.