Most customers lose money because they take profit to early but they don't cut there losses... Professionals let the winners run (add positions) and cut there losses..
Just an observation: the initial posting is much different from the title of the thread. Also the title itself is misleading when it says "best length for selling a weekly option?" Aeh... what? It's frustrating to attempt to read & understand such badly worded postings. Please add some more quality to your postings. Thx.
I am not sure. I am trying to learn as much as I can so I am not the 90%. I am learning different strategies also. What strategies do you use?
What formula or method do you use to compare them (ie. premium and pITM) to each other for making such a decision?
I have two formula's I use. 1. I like the annualized gain/prob. of expiring ITM > 1 2. probability of expiring OTM + annualized gain > 100%