What Is a Long Straddle?
A long straddle involves buying both an at-the-money (ATM) call and an ATM put at the same strike price and expiration date. The trader pays premium for both options and profits when the stock makes a large move in either direction that exceeds the total cost of both options. The long straddle is a pure volatility buying strategy with unlimited profit potential on the upside and substantial profit potential on the downside.
Long straddles are the go-to strategy for traders who expect a big move but are uncertain about the direction. Common applications include positioning before earnings announcements, FDA decisions, major economic data releases, or technical breakouts from tight consolidation patterns. The challenge is that ATM options are the most expensive, so the move must be large enough to overcome the combined premium cost.
Buy 1 ATM call + Buy 1 ATM put at the same strike and expiration. You pay premium for both options. Maximum loss = total premium paid (both options expire worthless). Profit is unlimited upward and substantial downward. You need the stock to move more than the combined premium to profit.
Long Straddle Formulas
- 1Total cost = ($4.00 + $3.50) x 100 = $750
- 2Upper breakeven = $100 + $7.50 = $107.50
- 3Lower breakeven = $100 - $7.50 = $92.50
- 4Implied move = $7.50 / $100 = 7.5%
- 5Max loss = $750 (stock stays at $100)
- 6At $115: Profit = ($115 - $107.50) x 100 = $750 (100% return)
- 7At $85: Profit = ($92.50 - $85) x 100 = $750 (100% return)
- 8The stock must move 7.5% in either direction to break even
Long Straddle P&L at Expiration
| Stock Price | Call Value | Put Value | Total P&L | Return |
|---|---|---|---|---|
| $85 | $0 | $15.00 | +$750 | +100% |
| $90 | $0 | $10.00 | +$250 | +33% |
| $92.50 | $0 | $7.50 | $0 | 0% (breakeven) |
| $100 | $0 | $0 | -$750 | -100% (max loss) |
| $107.50 | $7.50 | $0 | $0 | 0% (breakeven) |
| $110 | $10.00 | $0 | +$250 | +33% |
| $115 | $15.00 | $0 | +$750 | +100% |
When to Buy a Straddle
Long Straddle Trade Setup
- Long straddles have defined risk: you can only lose the premium paid
- Time decay (theta) works against you on both sides every day
- IV expansion helps; IV contraction hurts (even if the stock moves)
- The stock must move more than the implied move percentage to profit
- Best risk/reward when IV is in the lower quartile of its 52-week range
Both options in a long straddle lose value every day due to theta decay. If the stock does not move enough before expiration, you lose your entire investment. The rate of decay accelerates in the final 2-3 weeks. If the trade is not working by halfway to expiration, consider closing to salvage remaining time value.
Even if you do not trade straddles, the ATM straddle price tells you the market's expected move. Divide the straddle price by the stock price to get the implied percentage move. This is invaluable for planning covered calls, iron condors, and other strategies around expected price ranges.