Investing.com - BlackRock (NYSE:BLK) fell by 8.31% to trade at $395.12 by 09:33 (13:33 GMT) on Thursday on the NYSE exchange.
The volume of BlackRock shares traded since the start of the session was $53.35K. BlackRock has traded in a range of $394.03 to $396.88 on the day.
The stock has traded at $497.7700 at its highest and $394.0300 at its lowest during the past seven days.