All the Shorts and longs either bashing or pumping this stock have me laughing. This company, in it's current form, is just a year old. There is nothing to baseline it against, since Invitrogen bought AB last year and became 'Life'. It started at the worst possible time, stock wise, right at the bottom of the stock luge at about $22 a share, and has come up steadily from there - not surprising based on the fact that the whole market has climbed out of that hole. The CEO, Greg Lucier, seems to have taken up a crusade of aquisitions in the last few years, so I doubt this is the last. So far, the market has responded favorably to this, and his descions seem to be good, but who know's if he can keep that up.
Just because this stock is at an all time high, is no reason to sell, nor is it's upward trend a reason to buy. It seems to be a solid player in the biotech community and has good financials, so I think only a fool would short right now. On the other hand, cheerleading a run up to 60 is just about as unfounded. In my opinion, this stock has support in the 50's, so if you think Greg continues to have that 'vision' thing when it comes to company growth, invest in the company. If you don't, don't, or even short.... it's your money.