Straddle

What Is a Straddle?

A straddle buys (or sells) both a call and a put on the same underlying at the same strike and expiration. The most common version is the long ATM straddle: buying both the at-the-money call and put, paying two premiums in exchange for the right to profit from a large move in either direction.

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A long straddle profits when the underlying moves significantly — up or down — by more than the total premium paid. If you pay $5.00 for the call and $4.50 for the put, total cost is $9.50. At expiration, the stock must be above $109.50 (strike + combined premium) or below $90.50 (strike - combined premium) to profit. Between those boundaries, the position loses some or all premium.

A short straddle sells both legs, collecting both premiums, and profits when the underlying stays near the strike through expiration. It has theoretically unlimited risk in either direction. Maximum profit is the combined premium collected when the underlying closes exactly at the strike at expiration.

Why It Matters for Options Traders

Straddles are the primary instrument for trading volatility around binary events — earnings, FDA decisions, macro releases. The question isn’t directional; it’s whether the actual move will exceed the priced-in move. Buying a straddle before earnings is betting realized volatility will exceed implied volatility.

The ATM straddle price defines the market’s implied move. Dividing straddle cost by stock price gives the percentage move the market expects. A $100 stock with a $5.00 ATM straddle implies a ~5% move. This benchmark helps assess whether options are cheap or expensive relative to the event.

IV crush is the primary risk for long straddle buyers. Even when a stock moves significantly on earnings, the post-announcement volatility collapse can offset directional gains. Buying into high-IV environments requires a larger-than-priced move to profit. Selling straddles into elevated IV harvests premium from expected compression, with risk from moves exceeding the implied range.

Key Characteristics

• Direction-neutral: Profits from large moves in either direction, not from predicting which direction
• Max profit (long): Unlimited to the upside; capped at the put strike value on the downside
• Max loss (long): Total premium paid when the underlying closes exactly at the strike at expiration
• Max profit (short): Combined premium collected when the underlying closes at the strike at expiration
• IV benchmark: The straddle price divided by the underlying price gives the market’s implied move percentage
• IV crush risk: Post-event volatility collapse can erase directional gains for long straddle holders, even when the move is substantial