REGN is up huge in past few days based on rumors of compounding pharmacies(where avastin is made) being regulated
But don't expect anything to come of this for a long time if at all. FDA doesn't have the resources or time to do this. States may regulate compounding pharmacies with more safety inspections but don't expect avastin to stop being made in smaller doses for optho's. The move in REGN will be faded imo so take your profits before the market takes them from you!