Markets opened Tuesday morning by continuing their recent sell-off, with the Dow falling as much as 560 points to start the day. The index breifly fell into correction territory, down more than 10 percent from its all-time high hit just a few days ago.

Lululemon's stock was also down after news CEO Laurent Potdevin resigned over his "conduct." It's the latest issue for the company, whose founder stepped down in 2015 amid a series of controversial comments.

Plus Apple supplier Cirrus Logic shares dropped after the company said slowing smartphone demand hit results in its latest quarter. General Motors shares, though, were on the rise after the automaker said earnings and revenue were better than expected for the quarter.