Long Straddle
Buy a call and a put at the same strike. You need a large move in either direction to cover the two premiums.
Illustrative expiry sketch. Sample price is 50. Points are teaching numbers, not a quote.
Description
Long Straddle starts from a simple idea: Buy a call and a put at the same strike. You need a large move in either direction to cover the two premiums. The construction is long one call and long one put, same strike and expiry.
The sketch on this page uses a sample price of 50 and round teaching premiums, so you can see the shape. A live quote will use different strikes and a different debit or credit, and the picture before expiry is softer than the line at expiry because leftover time still has value.
Read Long Straddle as a finished bet on where price will be when the options expire, not as a forecast of every day in between. If price stays near the strike, both options decay and the debit can be lost. A rise in implied volatility helps the position before expiry.
When it fits
You expect a break and you do not want to pick the direction. Traders usually file it under Sharp Move Up or Down, Implied Volatility Increase. That label is a starting filter, not a promise that the trade will work.
It is a poor fit when your forecast needs a payoff this structure cannot deliver. If you need unlimited upside, do not choose a capped spread. If you cannot carry an open-ended loss, do not choose a naked or ratio position that still has an uncovered short option. Match the forecast to the shape on the chart before you match it to the name.
How the legs work
You own 1 50 call and 1 50 put. There is no short option. There is no share leg, so the result comes only from the options.
Every option in the sample shares one expiry, so the line is the profit or loss if you hold to that date and the options are settled for their intrinsic value.
The sample is opened for a debit of 8 points. That debit is cash you pay at the start, and it is the amount the move has to earn back.
Maximum gain
Long Straddle does not have a ceiling in this sample. Past the last strike, the line is still rising, which means another point of favorable movement adds another point of profit.
Unlimited on a chart is not unlimited in an account. Margin, gaps, and the decision to close early all cut the result off in practice. The useful question is how far price has to travel before the trade has paid for its risk.
Maximum loss
The worst expiry result in this sample is -8 pts. Both the long and short options have finished on the wrong side of that number, and the remaining loss is the net debit or the strike gap that the credit did not cover.
A capped loss is still a real loss. It is the amount you should be willing to spend or reserve before you open Long Straddle, not a figure to discover after the move.
Breakeven
In this sample the line crosses zero at 42 and 58. The gold dots sit on that zero line. The dashed line is only the sample spot of 50, not a target.
Each breakeven already includes the debit you paid or the credit you received. If you pay more than this sample, the profitable zone shrinks. If you receive a larger credit, the zone widens. Long Straddle should be judged from your fill, not from these round numbers.
Volatility
Before expiry, a rise in implied volatility tends to lift Long Straddle, because the long premium outweighs the short premium. That help disappears at expiry. The settlement value is only intrinsic value, and intrinsic value does not contain volatility.
Buying when implied volatility is already high means you paid a rich premium. The forecast then has to be large enough to cover that cost even if volatility falls back.
Time decay
You paid for Long Straddle, so the clock reduces that premium whenever price does not move enough to replace it. The long option needs the forecast to arrive before expiry.
A short leg in the same package gives some of that decay back, but not all of it. If the opening trade is a net debit, assume time is a headwind until price proves otherwise.
Assignment risk
Long Straddle has no short option, so another trader cannot assign stock to you or call stock away from you through this position.
A long option can still be exercised, but only if you send the instruction. Expiry will exercise it automatically only when it finishes in the money under the usual clearing rules. If you do not want the shares, close the long option before the final session.
What to watch
If price stays near the strike, both options decay and the debit can be lost. A rise in implied volatility helps the position before expiry.
The sample breakeven sits at 42 and 58. Into the last day, decide whether you will close or hold. A short option that finishes near its strike can be assigned or not, and you may not know which until the next session. Long Straddle is easier to manage when that decision is made while the market is still open.
Example
- Long 1 50 call
- Long 1 50 put
- Sample net debit: 8 points
- Max gain
- Unlimited
- Max loss
- -8 pts
- Breakeven
- 42, 58