Vertical Spread

What is a vertical spread?

A vertical spread is an options strategy that buys one option and sells another of the same type and expiration at a different strike. The strike width and entry price fix the maximum profit and maximum loss at expiration before the trade is placed. Bull call and bear put spreads pay a debit; bear call and bull put spreads collect a credit.

The two legs share the underlying, option type, expiration, deliverable, and quantity. Two calls create a call vertical; two puts create a put vertical.

The four standard versions cover bullish and bearish views. A bull call spread buys the lower call and sells the higher call. A bear call spread reverses those sides. A bear put spread buys the higher put and sells the lower put. A bull put spread reverses those sides.

How to calculate vertical spread max profit and max loss

Bull call and bear put spreads pay a net debit. Their maximum expiration loss equals that debit, and maximum expiration profit equals strike width minus debit.

Bear call and bull put spreads receive a net credit. Their maximum expiration profit equals that credit, and maximum expiration loss equals strike width minus credit.

Multiply per-share values by the contract multiplier and quantity. For a standard one-contract equity spread, the multiplier is 100.

The example buys the 100 call for $4.00 and sells the 110 call for $1.50. The spread costs $250, has $750 maximum expiration profit, and breaks even at $102.50. At $95, it loses $250. At $106, it earns $350. At $110 and above, it earns $750.

How to calculate vertical spread breakevens

For debit calls, add the debit to the long strike. For debit puts, subtract it from the long strike. For credit calls, add the credit to the short strike. For credit puts, subtract it from the short strike.

These boundaries identify profit independently of the short strike. A 100/110 bear call spread opened for $2.50 credit still earns $150 at an expiration stock price of $101. Its breakeven is $102.50.

Strike placement also determines how much movement a trade needs. A 90/100 bull call spread opened for an $8 debit earns $200 at expiration with stock at $105, including when that is also the entry stock price.

Call vs put verticals and P&L before expiration

Bull call and bull put spreads with matching strikes and expiration have equivalent expiration profit shapes after entry prices and financing are included. The same relationship holds for bear call and bear put spreads.

Before expiration, add the signed Greeks and reprice both legs at the dates, prices, and volatility inputs in the plan. Compare the package’s complete closing price with its entry debit or credit. The options profit calculator compares entry cost, breakeven, maximum expiration profit and loss, and target-date value before the spread is chosen.

How to trade and close a vertical spread

Use gamma exposure, price structure, and options flow to select the stock-price scenarios to test. Inspect linked prints as one position by matching quantity, expiration, strikes, and execution details.

Open and close both legs with a net price limit. If holding physically settled contracts through expiration, map the stock transactions created by exercise and assignment and manage the resulting shares.

Risks and limitations of vertical spreads

• Set the short strike at your price target, because it caps the gain. The example’s $750 maximum profit holds at $110 and above at expiration, so a larger rally earns nothing more.
• Place the strikes for the move you expect. A debit spread often needs a move to profit. The bull call example needs a finish above $102.50 to make money and a rise to $110 to earn the full $750.
• Compare the closing price with the full width before you exit early. Before expiration the spread is usually worth less than its full width even with the stock past the short strike, so closing early gives up part of the maximum profit.
• Close both legs together to keep the risk defined. Defined risk applies to the complete option payoff. If one leg is assigned or exercised, the resulting stock position has to be managed with the remaining option.
• Bid-ask spreads and fees affect the net entry and exit prices you can obtain. Calculate P&L from the package fills and count separate fees once.

Bottom line

The bull call spread pays $2.50 a share for the move from 100 to 110, and its strikes cap both the gain and the loss. Pick debit or credit by the view and the price, set the strikes around the target, and judge the trade by its breakeven and the move it needs.