Tesla CFO steps down, KKR earnings, Wayfair upgrade: Top stories

The S&P 500 (^GSPC) started Monday in the green, up slightly after ending the prior week lower. Tesla (TSLA) shares fell after the EV maker announced Chief Financial Officer Zachary Kirkhorn had stepped down. The company promoted Vaibhav Taneja, its Chief Accounting Officer, to the role. Private equity firm KKR & Co. (KKR) reported second quarter results that topped analyst estimates, despite seeing a slump in asset sales. Shares of Wayfair (W) were also in focus after the home retailer got an upgrade to "buy" from neutral" at UBS.