all you have to do is use the rule."would I buy this stock today?" if the answer is yes, then hang on.... if not then sell immediately.... as portee44 said, when you learn to buy a GOOD company and hang on thru all the ups and downs then you won't get ulcers and at the other end of the rollercoaster you have your pockets filled with money.... very simple really... KXL has so much potential that its crazy even to try to guess what it is..... W.