NBIX is looking like many biotechs this last week. It's getting pushed down by the MM pre earnings, only to fly high again by the end of next week. Investors are nervous about the annoucement of a 2nd offering. Not a big chance it will happen, but even at a 20% chance, that's enough to scare people into selling. Either hold tight or sell going into the weekend, only to rebuy at a lower entry point 7-10 days later.