What is a Strangle? Definition, Formula, and Example
A strangle is an options strategy that simultaneously buys an out-of-the-money call and an out-of-the-money put on the same underlying and expiration, profiting when the stock makes a large move in either direction.
What is a Strangle?
A strangle is an options strategy that simultaneously buys an out-of-the-money (OTM) call and an out-of-the-money put on the same underlying asset with the same expiration date but different strike prices. It is a long-volatility, direction-neutral position: it profits when the underlying moves significantly in either direction before expiration. The strangle costs less than a straddle because both legs are OTM, but it requires a larger underlying move to reach breakeven.
How It's Calculated
Net debit = Call premium + Put premium
Upside breakeven = Call strike + Net debit
Downside breakeven = Put strike − Net debit
Maximum loss = Net debit (realized when the underlying closes between the two strikes at expiration)
Maximum gain = Unlimited to the upside; bounded at (Put strike − Net debit) to the downside
A short strangle (selling both legs) reverses the payoff: max profit is the net credit received; loss is theoretically unlimited on the call side.
Worked Example
NVDA is trading at $875 the day before earnings. Implied volatility is elevated to 72 IV.
- Buy the $910 call (10 delta) expiring this Friday for $18.40
- Buy the $840 put (11 delta) expiring this Friday for $15.60
- Total debit: $34.00 per share ($3,400 per contract)
- Upside breakeven: $910 + $34 = $944
- Downside breakeven: $840 − $34 = $806
NVDA must move more than $69 (≈7.9%) from $875 in either direction for the position to profit at expiration. If NVDA gaps to $960 on a blowout quarter, the $910 call is worth $50 intrinsically — a net gain of $16 per share. If NVDA closes at $865, both options expire worthless and the full $3,400 is lost.
When Traders Use It
Long strangles are opened before binary events with uncertain direction: earnings announcements, FDA rulings, central bank decisions, or merger outcomes. Traders who expect a large move but have no directional conviction buy strangles instead of outright calls or puts. Shorter-dated strangles (weekly expiration) limit capital at risk while maximizing sensitivity to the event.
Premium sellers take the opposite trade — selling strangles on assets expected to stay range-bound, collecting time decay on both legs. Short strangles are a core strategy for volatility sellers and market makers who delta-hedge their net exposure continuously.
Limitations and Common Misconceptions
IV crush is the primary risk for long strangles. Implied volatility spikes before a catalyst and collapses the moment the event resolves. A stock that moves 6% post-earnings can still leave the long strangle buyer at a loss if IV fell from 70 to 30 on the print — the extrinsic value evaporating faster than intrinsic value accrues. Options vega quantifies exactly this exposure.
A common misconception is conflating strangles with straddles. A straddle uses at-the-money strikes, costs more, but breaks even on a smaller move. The strangle is cheaper to enter but demands a larger swing to profit — selecting the wrong structure for the expected move size is a frequent retail mistake.
Short strangles carry theoretically unlimited upside risk. A short strangle on a stock that gaps 30% on a buyout can produce losses many multiples of the premium collected.