Call Backspread (Call Ratio Backspread)

What is a Call Backspread?

A call backspread is the reverse of a call ratio spread. You sell one call at a lower strike and buy two calls at a higher strike, all at the same expiration. The trade profits from a big upside move. The two long calls give you unlimited upside exposure, while the single short call partially funds the position.

The ideal scenario is a sharp rally where the two long calls far outpace the single short call. If the stock goes down, you keep any net credit received. The danger zone is a moderate move to the long call strike, where you lose the most.

How to Set It Up

Sell 1 call at a lower strike
Buy 2 calls at a higher strike
Same expiration for all legs
Strike selection: Sell the ATM or slightly ITM call. Buy two calls 5-10 points higher.
Credit or debit: Often entered for a small credit, especially if the lower strike call is at or near the money.
Expiration: Choose enough time for the expected move. 30-60 days is typical.

The net credit or small debit depends on the strike spacing and volatility.

When to Use This Strategy

Use a call backspread when:

You are strongly bullish and expect a big upside move
You want unlimited upside with defined or limited downside
A catalyst is expected that could cause a sharp rally
You want a cheaper alternative to buying two calls outright
IV is relatively low and you expect a volatility spike

Call backspreads are event-driven trades. They work best when you expect a big move up but want some protection if you are wrong.

Example Trade

Stock XYZ is trading at $100. You expect a breakout above $110.

Sell 1 XYZ $100 call for $4.00
Buy 2 XYZ $105 calls for $2.20 each ($4.40 total)
Net debit: $4.40 - $4.00 = $0.40 ($40 total)

If XYZ stays at $100 or drops: All calls expire worthless. You lose the $40 debit.

If XYZ goes to $105: The $100 call is worth $5. The two $105 calls expire worthless. Net: -$500 + $0 - $40 = -$540 loss. This is the max loss zone.

If XYZ goes to $115: The $100 call is worth $15 (-$1,500). The two $105 calls are worth $10 each (+$2,000). Net: $2,000 - $1,500 - $40 = $460 profit.

If XYZ goes to $130: The $100 call is worth $30 (-$3,000). The two $105 calls are worth $25 each (+$5,000). Net: $5,000 - $3,000 - $40 = $1,960 profit. Profits accelerate from here.

Risk and Reward

Max profit: Unlimited. The two long calls outpace the one short call by an ever-growing margin as the stock rises.
Max loss: Occurs at the long call strike at expiration. (Short strike value - credit/+ debit) adjusted for the position. In our example, $540.
Breakeven: On the upside, the long strike plus the max loss per share. On the downside, if entered for a credit, anywhere below the short strike.

The payoff curve is a V-shape with the bottom at the long call strike. Below the short strike you are flat (or keep a small credit). Above the upper breakeven, profits are unlimited.

Tips and Common Mistakes

You need a big move. A moderate rally to the long strike is the worst outcome. Make sure you expect a real breakout, not a gentle drift.
Enter for a credit if possible. This eliminates downside risk entirely.
More time helps. Longer expirations give the stock more time to make the big move.
Close if the stock moves to the long strike with little time left. That is where max loss occurs.

Related Strategies

Call Ratio Spread — the opposite trade (buy 1, sell 2) for moderate moves
Long Call — simpler bullish trade with unlimited upside
Long Straddle — profits from a big move in either direction