RE:Holy volatile batman
Investorshub seems to have the answer. From nutsyprofessor:
Looks like the recent 13G filings may have something to do with the recent price increase:
Franklin Resources increased their ownership by 7 million shares.
BlackRock Inc., is a NEW holder with 27.8 million shares, and
JP Morgan Chase decreased their holdings by about 1 million.
So we have a net increase of 25 million shares in new institutional holdings between these three filers.