18 Mar, 2022
Percent to Double
We use this with respect to options trades in determining if we like an option enough to buy it or if we are in an option, if we want to stay in it. This calculation tells you how far the underlying stock must move before the option will double in value. We prefer a 7%-10% value, less if we can get it. This does not mean we will not buy an option, but it does give us insight as to how long we will hold it. Percent to double is a Smith Barney proprietary calculation.