A strangle is an options strategy in which the investor owns positions in both a call and a put option with different strike prices, but the same expiration date and underlying asset. If an investor believes the underlying asset will have a large price move in the near future but is unsure of the direction, a strangle is a suitable technique to address this scenario. However, a strangle is profitable only when the asset's price does fluctuate significantly. In contrast to a straddle, which employs a call and put with the same strike price, a strangle uses options with separate strike prices.