Amarin Corp Plc (AMRN)

[ferretmoney]

The calculus changes as the spread widens, but for one example I don't need $7 margin for $7 put spread. Need 1.20 if premium is 5.80. If the put spread and call spread have the same risk reward I choose the put spread because as price rises the sold put declines in mark where the sold call increases in mark. So if the price moves in my favor I can exit easily from the sold put.