The only clue one gets is that when the market is tanking you can take a shot at buying near close, like Monday. And, if there is a huge dip at open it's attractive. Pulled $3 out of TRA ($28-$29) in the last couple days day flipping and am on track to buy at close again. Ford is one of my other ones...good for 15-20 cents and can make some money if you buy enough of it. I still can't get the hang of FAS and FAZ and haven't done well with either. Although I have figured out you need to buy 3 times as much FAS to get the effect.