What is a Call Back Spread? Definition, Setup, and Example
A call back spread is a bullish options strategy that sells one call at a lower strike and buys two calls at a higher strike, creating a net credit with unlimited profit potential if the stock rallies sharply.
What is a Call Back Spread?
A call back spread is a bullish options strategy that profits from a sharp upward move in the underlying stock. The position consists of selling one call option at a lower strike price and buying two call options at a higher strike price, all with the same expiration date. The strategy is a net credit trade, meaning the trader receives more premium from the sold call than they pay for the two bought calls. The position has limited risk at the lower strike and unlimited profit potential to the upside.
The call back spread is a type of ratio spread where the number of long options exceeds the number of short options. It is the bullish counterpart to the put back spread, which uses a similar structure with puts for bearish bets. The strategy is designed for traders who expect a large, sudden rally in the stock price.
How It's Calculated / Identified
The call back spread uses a 1:2 ratio. The trader sells 1 call at strike L (lower) and buys 2 calls at strike H (higher), where H > L. Both options share the same expiration date.
Net Premium Received = Call Premium at L - (2 × Call Premium at H)
The position collects a net credit if the premium from the sold call exceeds the combined cost of the two bought calls. The risk profile has three zones:
- If the stock closes below L at expiration: all calls expire worthless, and the trader keeps the net credit.
- If the stock closes between L and H: the short call loses value as the stock rises, and the loss equals (Stock Price - L) minus the net credit.
- If the stock closes above H: the short call loses (Stock Price - L), while the two long calls gain 2 × (Stock Price - H). The net profit is (Stock Price - L) - 2 × (Stock Price - H) + Net Credit, which grows as the stock rises.
The maximum loss occurs at the higher strike H, where the loss equals (H - L) minus the net credit received.
Worked Example
Consider META trading at $500.00. A trader expects a major rally and sets up a call back spread with 30 days to expiration:
- Sell 1 META $510 call for $8.00
- Buy 2 META $540 calls for $3.00 each, total cost $6.00
Net credit received = $8.00 - $6.00 = $2.00 per share, or $200 per spread
If META closes at $490 at expiration: all calls expire worthless. The trader keeps the $2.00 credit.
If META closes at $525 at expiration: the short $510 call loses $15.00. The two $540 calls expire worthless. Net loss = $15.00 - $2.00 = $13.00 per share, or $1,300 per spread.
If META closes at $570 at expiration: the short $510 call loses $60.00. Each $540 call gains $30.00, so two calls gain $60.00. Net profit = $60.00 - $60.00 + $2.00 = $2.00 per share, or $200 per spread.
The profit accelerates as the stock rises further above the higher strike. At $600, the short call loses $90.00, while the two long calls gain $120.00, producing a net profit of $32.00 per share.
When Traders Use It
Traders use a call back spread when they expect a massive rally, such as a positive earnings surprise, a product launch, or a short squeeze. The strategy profits from a large move rather than a gradual climb, so it suits event-driven trading around earnings dates or FDA approvals.
The net credit structure means the trade pays the trader to enter, which is attractive when implied volatility is high. Selling the lower-strike call collects premium inflated by elevated volatility, while the two long calls cost less relative to their potential payoff. The strategy also works as a hedge for a short stock position when the trader expects a sharp bounce but does not want to pay for a simple call purchase.
Limitations / Common Misconceptions
The call back spread has a maximum loss zone between the two strikes. A trader who expects a rally but gets a moderate gain suffers a loss. The position requires a move above the higher strike to reach profitability, and the breakeven point sits well above the higher strike.
A common misconception is that the net credit makes the trade risk-free. The credit is small relative to the potential loss in the middle zone. A stock that rises to the higher strike but not above it produces the maximum loss.
The position also suffers from early assignment risk on the short call. If the stock rises above the lower strike and the call goes in-the-money, the trader may be assigned and end up short 100 shares. The two long calls hedge that short position, but only above the higher strike.