It was only a matter of time before Intuitive Surgical (ISRG) surpassed it's previous all time high of $359.59 set on December 14, 2007. I have blogged many times about ISRG in my Chasing Value column. Today, I'm delighted that the stock is rising, but I think it is getting a bit rich and the value proposition has changed -- intra-day it hit $366.50.Intuitive has a trailing P/E ratio of 61 and a projected P/E of 46. I commonly average the two for such volatile stocks which translates to 53.5. There are certain times when that might be alright, but with a PEG ratio (price-to-earnings-to-growth) of 2.05, this is not one of them. If you own it I am not suggesting selling it, but if you do not it might be wiser to put it on your watch list and wait for the market to calm down.
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