In case of short straddle, though the investor earns an income, one should use it with extreme caution as the losses could be high if the expectations of limited volatility prove incorrect.
Short Straddle: This strategy is the reverse of long straddle and is implemented by selling a call and a put option with the same underlying security, strike price and expiry date.
Rajesh purchases 6,450 RST Index options and enters the long straddle; Naveen sells 6,550 RST Index options and enters short straddle. The cost of trade for long straddle is Rs 9,500 [(100+90)x 50], and for short straddle, it is Rs 9,250 [(80+105)x 50].
Short straddle reaches its break-even points at 6,365 and 6,735.