Strangle Options Strategy: How to Trade Big Moves at Lower Cost

How a Strangle Works

To construct a long strangle, buy an OTM call with a strike price above the current stock price and an OTM put with a strike below the current stock price, both with the same expiration date. If the stock is at $100, you might buy the $110 call for $1.50 and the $90 put for $1.00. Total cost: $2.50/share ($250 per contract). The maximum loss is the total premium paid ($250), which occurs if the stock price stays between $90 and $110 at expiration — the "zone of death" where both options expire worthless. The upper breakeven is the call strike plus total premium ($110 + $2.50 = $112.50). The lower breakeven is the put strike minus total premium ($90 - $2.50 = $87.50).

The strangle benefits from increasing implied volatility — if volatility rises after you enter, both options gain value even if the stock does not move. This makes strangles popular before high-impact events like earnings, FDA decisions, and central bank meetings. The trade also suffers from time decay (theta), which accelerates as expiration approaches. Because both options are OTM, time decay works against the position from day one. You need the big move to happen before theta erodes the position. Most strangle traders enter 1 to 14 days before the expected catalyst and exit immediately after the event — they rarely hold to expiration. The key advantage of the strangle over the straddle is lower capital at risk, but the disadvantage is the wider breakeven points. Compare strangles to straddles →

Strangle vs Straddle

The choice between a strangle and a straddle depends on your expectations for the size of the move and your budget. A straddle uses the same at-the-money strike for both options, costs more upfront (typically 5% to 15% of the stock price), and requires a smaller move to break even. A strangle uses different OTM strikes, costs less upfront (typically 2% to 6% of the stock price), but needs a larger move to become profitable. As a rule of thumb, choose a straddle when you expect a moderate move (5% to 10%) and want a higher probability of profit. Choose a strangle when you expect an extreme move (10%+) and want to minimize upfront cost. The strangle's lower cost also means a higher percentage return if the big move materializes.

There is also a "short strangle" where you sell the OTM call and put instead of buying them. The short strangle profits when the stock stays within the strike range and volatility decreases. This is the opposite trade — collecting premium rather than paying it. Short strangles have undefined risk and are not recommended for beginners. Iron condors are a popular way to define the risk of a short strangle by adding protective wings. Learn about Iron Condors →

When should I use a strangle instead of a straddle?

Use a strangle when you expect a very large price move (10% or more) and want to minimize your upfront cost. The strangle is also preferable when implied volatility is already high and straddle prices are prohibitively expensive — the strangle's OTM options are cheaper and give you a better risk-reward ratio for extreme moves. Specific scenarios: before binary events like FDA drug approvals (stock can move 20% to 50%), during earnings season on volatile stocks like TSLA or NVDA, or before major economic releases like Fed rate decisions. Avoid strangles when you expect only a moderate move (5% to 8%) — the stock may not reach your breakevens and both options will expire worthless.

How do I choose the strikes for a strangle?

The strike selection depends on the expected move size and your risk tolerance. A common approach is to select strikes at approximately one standard deviation from the current price, based on the options market's implied volatility. If a $100 stock has 30% implied volatility and 30 days to expiration, one standard deviation is roughly 5% to 6%, suggesting the $105 call and $95 put. For a more aggressive strangle (cheaper but needs a bigger move), use wider strikes like $110/$90. For a more conservative strangle (more expensive but breakevens are closer), use strikes like $103/$97. The ratio of call price to put price can signal market bias — if calls cost much more than puts, traders are pricing in upside risk.

What's the best time to buy a strangle?

The best time to buy a strangle is before a major catalyst when implied volatility is likely to expand. Implied volatility typically rises in the days leading up to known events (earnings, Fed meetings, product launches) as uncertainty increases. Entering 1 to 2 weeks before the event allows you to capture some of the IV expansion while still having time for the move to develop. Avoid buying strangles in low-volatility environments where options are cheap and the stock is range-bound — time decay will destroy the position. Also avoid holding strangles through the event if the move was smaller than expected — IV crush will decimate the option values even if the stock moved modestly.

Can I sell strangles instead of buying them?

Yes. A short strangle (selling an OTM call and OTM put) is a neutral strategy that profits when the stock stays between the two strikes and implied volatility declines. You collect the premium upfront and keep it if both options expire worthless. The risk of a short strangle is significant — if the stock makes an extreme move beyond either strike, losses can be very large and theoretically unlimited on the upside. Short strangles are typically used by experienced traders who have a strong view that volatility is overpriced. Beginners should avoid short strangles and instead consider iron condors, which limit risk by adding protective long options. Learn about implied volatility →

Related Resources