FGEN ...Lin ...If I'm fortunate to be up over 100% I'll usually just set a stop loss at roughly 10% below the last high ( it varies depending on how volatile the stock is ) and take at least 20% off the table if and when that stop is hit If it then drops another 10% I'll consider taking another 20% off .
Either way ...no position will ever be more then 20% of my portfolio ....so if my stop is never hit , I'll start trimming anyway.
Its just what works for me , what I can sleep with ..:-)