I wouldn't short ARIA personally but all of your points, especially the first one, are why I continue to be on the sidelines and have no intention of taking a long position. I think the expectation is that ponatinib will be a more potent drug than the generics that will be on the market in the next few years, and will work on the mutation that the generics will not, but it's a reasonable question to ask if that market alone is enough to support current valuation, let alone any reasonable upside. And what are the chances ponatinib will make any reasonable headway into the rest of the market served by the soon-to-be generics. Seems like a fair question, especially at current valuation. There is still rida and the ALK drug but I haven't seen enough convincing data on rida yet and the ALK drug is a bit too early itself.
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