I'm not sure I buy the idea it has anything to do with Clinton's tweet specifically. She's doesn't hold political office, and it's looking less and less likely by the day that she'll ever make it to the oval office.

I think I might have misread the article as the companies performance falling, not biotechs as a whole.

Knowing it was broader then that, It makes a bit more sense that the hit came after her comment around releasing her plan for pharmaceuticals.

Is it reasonable to accept causality here?