Bull Call vs Bull Put Spread: Compare the Same Strikes

Paying $200 for a bull call spread and receiving $300 for a bull put spread can produce the same modelled expiration profit and loss. The comparison needs the same strikes, expiration and contract terms, plus consistent premiums and an explicit treatment of financing.

The opening payment alone cannot tell you which spread has the larger loss or needs the larger stock move. Start by matching the contracts. Then calculate what each position owes or receives at expiration.

Hold the strikes fixed

A bull call spread buys the lower-strike call and sells the higher-strike call. A bull put spread sells the higher-strike put and buys the lower-strike put. Each uses equal quantities and one expiration. The Options Industry Council discusses the two structures in its bull call and bull put references, including their comparable payoff profiles after carrying costs.

Consider two fictional alternatives on XYZ, each with $100 and $105 strikes, one shared expiration and a 100-share multiplier. Assume unadjusted, physically settled, American-style equity contracts. These are invented premiums for arithmetic, with zero financing cost and no dividends. Commissions, fees, tax and execution costs are excluded. This is an expiration model in which both legs' intrinsic values are accounted for; it assumes no earlier assignment or unmatched share exposure.

The net debit is $2 per share; the net credit is $3. Their sum equals the $5 strike width in this zero-carry illustration. OMP's vertical-spreads lesson introduces the component strategies. Holding the strikes fixed here lets us isolate the effect of using calls or puts.

Reconcile the expiration cash flows

At a fictional XYZ expiration price of $103, the call spread has $300 of net intrinsic value. Subtracting its $200 entry payment leaves a $100 modelled profit.

The put spread has a $200 net intrinsic obligation at that price. Subtracting it from the $300 entry credit also leaves $100. Receiving the credit earlier changes when cash enters the account; the remaining obligation determines how much is retained.

For the calls, the expiration breakeven is $100 plus the $2 debit. For the puts, it is $105 minus the $3 credit. Both equal $102. Each alternative risks $200 for a maximum $300 profit under these assumptions. A credit does not establish a higher probability of profit or a lower breakeven.

Those equalities depend on the assumed entry prices. If the put spread instead receives $2.80, its maximum loss becomes $220, maximum profit $280 and breakeven $102.20. It then produces $20 less than the illustrated call spread at every expiration price, before carrying costs. That is a separate hypothetical quote comparison, not evidence of an available market discrepancy.

Equivalent payoff arithmetic leaves practical differences

Real comparisons need borrowing costs, interest on collateral, dividends, exercise rights and executable prices. The OIC's carrying-cost qualification matters: do not require every live debit and credit pair to add to the undiscounted strike width. An apparent difference between midpoints cannot establish an executable saving. The two packages may have different liquidity and bid-ask costs.

Account funding also needs a separate check. The $300 credit is accompanied by an obligation, and the broker may restrict collateral or impose requirements beyond the simple $200 modelled loss. Compare actual buying-power treatment, charges and cash availability. The related cash-secured-put versus put-spread comparison shows how adding a long put changes a stock-purchase obligation; that is a different comparison from switching between matched bullish spreads.

FINRA's assignment guidance explains that American-style short options can be assigned during their term and that an assigned leg may require action on the rest of a spread. In this example, assignment of the short $105 put requires buying 100 shares for $10,500. Assignment of the short $105 call requires delivering 100 shares. A long option provides a right that must be managed under the broker's procedures; it does not guarantee automatic coordination with the short leg.

Physical delivery can leave shares after expiration, too. At $103, for example, exercise of the long $100 call can leave 100 shares, while assignment of the short $105 put can also leave 100 shares. The table values those shares at the assumed expiration price. It does not promise a realised cash profit or cover later share-price moves. Exercise instructions, cut-offs and assignment uncertainty require attention, especially near a strike. Closing or losing a protective leg changes the position being evaluated.

Before comparing a quote, write down both strikes, each signed leg, expiration, multiplier, deliverable, net price and broker funding terms. Then compare the expiration breakevens and dollar losses. OMP's bull-call-versus-long-call article covers the separate decision to surrender uncapped upside. Here, the useful next step is to verify that the two spreads describe the same price range before attributing a difference to debit or credit.

Sources and risk information

Primary sources were checked on 7 November 2026, Australia/Brisbane. All premiums, prices and calculations above are fictional author examples, not quotes, forecasts or suggested trades. Before-expiration exit values and tax outcomes are outside the calculation; different account and tax rules can change realised results.

Options Matrix Pro publishes this education and has a commercial interest in its analysis platform. This is general education, not personal financial, legal or tax advice. Options are not suitable for everyone. Obtain and read the current Characteristics and Risks of Standardized Options from your broker and confirm contract, funding, exercise and assignment procedures. See the general disclaimer.