What is a Break-Even Price? Definition, Formula, and Example
The break-even price is the underlying price at which an options position produces exactly zero profit or loss at expiration, calculated by adding or subtracting the premium from the strike price.
What is a Break-Even Price?
The break-even price is the price the underlying asset must reach at expiration for an options position to finish at exactly zero profit or loss. For a long call, it is the strike price plus the premium paid. For a long put, it is the strike minus the premium. For multi-leg spreads, each leg's premium nets into a single break-even, and complex positions can have two break-evens bracketing a profit zone. The break-even price is the first number a trader should compute before entering any options trade, because it defines how far the underlying must move, and in which direction, for the position to make money at expiration.
How the Break-Even Price Is Calculated
The formulas by position type:
- Long call: break-even = strike + premium paid
- Long put: break-even = strike - premium paid
- Short call (covered or naked): break-even = strike + premium received
- Short put (cash-secured): break-even = strike - premium received
- Debit call spread: break-even = long strike + net debit paid
- Credit put spread: break-even = short strike - net credit received
- Long straddle: two break-evens, strike + total premium and strike - total premium
- Iron condor: two break-evens, short put strike - net credit and short call strike + net credit
For stock positions, the break-even is simply the entry price adjusted for commissions and any dividends received.
Worked Example
Suppose AAPL trades at $232. A trader buys the $235 call expiring in 30 days for $4.50. The break-even is $235 + $4.50 = $239.50. AAPL must close above $239.50 at expiration, a 3.2% rally from the current price, for the trade to profit. If AAPL finishes at $238, the call is worth $3.00 and the trader loses $1.50 per share despite being right on direction.
Now a spread example: the same trader instead buys the $235/$245 bull call spread, paying $4.50 for the $235 call and collecting $1.80 for the $245 call, a net debit of $2.70. The break-even drops to $235 + $2.70 = $237.70, requiring only a 2.5% move. The trade-off is that profit caps at $7.30 per share above $245.
When Traders Use It
Traders use break-even prices to compare candidate trades on equal footing, to translate an options position into the required underlying move, and to sanity-check whether that move is realistic given the expected move implied by option prices. If a break-even sits outside the implied move, the market is pricing the trade as unlikely to profit. Break-evens also anchor management decisions: a trader rolling a covered call recalculates the position break-even after each roll to track the effective cost basis. Test break-even math across strategies in the paper trading simulator.
Limitations and Common Misconceptions
The expiration break-even ignores what happens before expiration. A long option can be profitable intraday well below its break-even if implied volatility rises or the underlying moves quickly, because the position gains through delta and vega before theta erodes the premium. Break-evens also exclude commissions, assignment costs, and the bid-ask spread paid on entry and exit, all of which shift the true break-even against the trader. Finally, for positions held through options assignment or exercise, the break-even must be recalculated on the resulting stock position.