Trading term

What is Vertical spread?

A vertical spread is an options strategy that buys one option and sells another of the same type and expiry but a different strike. Selling one option offsets part of the cost of buying the other, which caps both the maximum risk and the maximum reward — a defined-risk, defined-reward trade.

In a vertical spread, both legs are calls (or both puts), same expiration, different strikes. A 'bull call spread,' for example, buys a lower-strike call and sells a higher-strike call: the sold call reduces your cost, but also caps your gains at the higher strike. The result is a trade with a known maximum profit and a known maximum loss, both smaller than an outright option — you've traded some upside for a cheaper, lower-risk position.

Spreads are how traders express a directional view with controlled risk. A debit spread (you pay a net premium) profits if the underlying moves your way, up to the short strike; a credit spread (you receive a net premium) profits if the underlying stays away from the short strike. Because the risk is capped and defined at entry, spreads are far more forgiving than naked options — you always know the worst case. The cost is a ceiling on the reward.

Vertical spread — defined risk & reward
$0 P&Lprofitlossbuy $50sell $55break-even $52underlying price at expiry →Bull call spread · max profit $3, max loss $2 — both defined at entry

Buy the $50 call, sell the $55 call for a net $2. Below $50 you lose $2; above $55 you make the maximum $3. Both the best and worst case are fixed at entry.

For example

With a stock at $50 you buy a $50 call and sell a $55 call for a net $2 debit. Below $50 you lose the $2. Above $55 you make the maximum $3 (the $5 strike width minus the $2 cost). Break-even is $52. Both the most you can make ($3) and lose ($2) are fixed.

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Why it matters to you

Vertical spreads are the workhorse of defined-risk options trading — they let you take a directional bet with a known maximum loss decided at entry, and they cost less than a single option. That controlled, capped-risk profile is why spreads are often the first 'real' strategy traders graduate to after buying single calls and puts.

⚠ The reward is capped too

Because you sold an option to cheapen the trade, your upside is capped at the short strike — a big move beyond it earns you nothing extra. Traders sometimes forget this and hold a spread hoping for a runaway move that the structure can't capture. A spread is a bet on a defined move, not an open-ended one.

Frequently asked questions

What is a vertical spread?

A vertical spread buys one option and sells another of the same type (both calls or both puts) and expiry, at different strikes. The sold leg offsets part of the bought leg's cost, capping both the maximum profit and maximum loss — a defined-risk, defined-reward trade.

What's the difference between a debit and a credit spread?

A debit spread costs a net premium and profits if the underlying moves toward the long strike (directional). A credit spread pays you a net premium upfront and profits if the underlying stays away from the short strike (often a range or income play). Both cap risk and reward.

What's the difference between a bull and bear spread?

A bull spread profits when the underlying rises (e.g. a bull call spread buys a lower call, sells a higher one); a bear spread profits when it falls (e.g. a bear put spread buys a higher put, sells a lower one). The 'vertical' structure is the same — only the direction differs.

Why use a spread instead of a single option?

A spread is cheaper (the sold leg offsets cost), has a defined maximum loss, and reduces the impact of time decay and volatility changes. The trade-off is a capped maximum profit. Spreads suit traders who want a controlled, directional bet rather than open-ended upside.

Related terms

Call optionA call option is a contract giving the buyer the right — but not the obligation — to buy an asset at a fixed 'strike' price before a set expiry date. Call buyers are betting the price will rise; their risk is capped at the premium paid, while the potential profit is open-ended.Cash-secured putA cash-secured put is an options strategy where you sell a put option while setting aside enough cash to buy the stock if you're assigned. You collect the premium as income; in exchange, you agree to buy the stock at the strike if it falls there. It's a way to get paid to buy a stock you want at a lower price.Covered callA covered call is an options strategy where you own 100 shares of a stock and sell a call option against them. You collect the premium as income; in exchange, you cap your upside at the strike. It's a popular way to generate income on shares you're happy to hold or sell.DeltaDelta measures how much an option's price moves for each $1 change in the underlying. A delta of 0.60 means the option gains about $0.60 if the stock rises $1. It ranges from 0 to 1 for calls (0 to −1 for puts) and doubles as a rough probability the option finishes in the money.
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