Strategy guide

Long Straddle Strategy

A long straddle buys an at-the-money call and put with the same strike and expiration.

Strategy

Strategy summary

Market outlook
volatility
Risk type
defined
Capital requirement
Call + put premium × 100
Maximum profit
Unbounded upside; limited only by the downside to a zero-price move
Maximum loss
Both premiums, if price finishes at the strike
Theta / vega
negative / positive
Assignment risk
low
Typical use
Event volatility when the direction is unknown

Payoff at expiration

Profit and loss at expirationSpot $100.00 · Breakevens $93.00, $107.00
spot $100.00$50.00$150.00$4,300.00-$700.00
Profit LossMax profit unbounded · Max loss -$700.00
  • Max profitUnbounded
  • Max loss-$700.00
  • Breakevens$93.00, $107.00

How Straddle works

It profits from a large move in either direction, but pays two premiums and needs the move to exceed them.

Exact option legs

Buy same-strike call + put

  • BUY 1 × $100.00 call expiring 2026-01-16 at $3.60
  • BUY 1 × $100.00 put expiring 2026-01-16 at $3.40

Payoff, breakeven and risk

At expiration the position is worth the intrinsic value of each leg. The maximum profit is unbounded in theory, the maximum loss is -$700.00, and the position breaks even at $93.00 and $107.00.

Worked example

With the underlying at $100.00:

  • The straddle costs 7.00 and breaks even at 93.00 and 107.00.
  • Maximum loss is the 7.00 premium if the stock pins the strike.
  • Profit grows the further the stock finishes from the strike.

Strike selection

Use the at-the-money strike so the position is balanced and breaks even symmetrically.

Expiration selection

Longer expirations cost more but reduce the impact of time decay on the total premium.

Effect of time decay

This structure is negative on theta: net time decay works against it.

Effect of implied volatility

It is positive on vega: rising implied volatility helps.

Effect of stock movement

The position suits a volatility view, and it is tested most when the underlying moves outside the modelled strikes.

Assignment considerations

Assignment risk is low. Short legs can be assigned, especially when they are in the money or before a dividend; long legs have no obligation but can be exercised.

When it works poorly

  • Quiet markets where the stock pins the strike.
  • A fall in implied volatility after purchase.
  • Very short expirations.

Common mistakes

  • Buying a straddle after implied volatility has already spiked.
  • Ignoring the double time decay.
  • Assuming any move is enough to profit.

Tax caveat

Option outcomes can receive different tax treatment from share trades, and assignment changes the holding period and cost basis. This is general information, not tax advice; confirm your situation with a qualified professional.

FAQ

Is a straddle bullish or bearish?
Neither: it profits from movement in either direction.
Why two breakevens?
The premium must be exceeded on either side before the position profits.

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