While I wouldn't buy after the recent news and pop – when that injunction is lifted and it sells off it would make a lot of sense to pick it up…
That’s not a sensible approach to acquiring shares unless you are uncommonly patient.* If not overturned on appeal, the preliminary injunction against Amphastar will likely persist for a couple of years because that’s how long it will probably take for the patent trial to be completed.
*Based on my knowing you for almost a decade, I would say that patience is not an apt description of your investing style :- )
“The efficient-market hypothesis may be the foremost piece of B.S. ever promulgated in any area of human knowledge!”