Short straddles allow traders to profit from the lack of movement in the underlying asset, rather than having to place directional bets hoping for a big move either higher or lower. Premiums are collected when the trade is opened with the goal to let both the put and call expire worthless.
Why short straddle is best?
The advantage of a short straddle is that the premium received and maximum profit potential of one straddle (one call and one put) is greater than for one strangle. The first disadvantage is that the breakeven points are closer together for a straddle than for a comparable strangle.
When should you leave a short straddle?
The short straddle could be exited anytime before expiration by purchasing the short options. If the cost of buying the contracts is less than the initial credit received, the position will result in a profit. Implied volatility will have an impact on the price of the options.