Long Straddle is just opposite Short Straddle and is a Volatility Strategy that aims to make money wherein you do expect underlying to show any significant movement or expecting rise in volatility. Long Straddle strategy demands underlying to move significantly i.e., this is non direction strategy. In other words, if the underlying shows a significant move and closes above or below bought strike trade will gain significantly.
A straddle is a neutral options strategy that entails purchasing a put option and a call option with the same strike price and expiration date for the underlying investment. When the price of the security differs from the strike price by a sum greater than the whole premium paid, a trader will earn from a long straddle. As long as the price of the underlying asset fluctuates drastically, the profit potential is essentially limitless.