Nike's controversial Kaepernick ad has millennials snapping up the stock

Nike sank more than 2% following the release of its newest "Just Do It" ad starring former NFL quarterback Colin Kaepernick. 
The ad prompted swift reaction on Twitter, from both supporters and those who say Kaepernick's protests during the national anthem are disrespectful. 
On Robinhood, investors were piling into the stock at a rate of three times more than usual.
Watch Nike trade in real time here.
News that Nike had chosen Colin Kaepernick, the polarizing leader of NFL protests du