Under Armour, American Airlines and Medtronic are the Yahoo Finance charts of the day.

Let's check out the Yahoo Finance charts of the day. Under Armour (UA): Shares are up in early trade, at around 2.7%. J.P. Morgan upgraded Under Armour stock to "neutral" from "underweight". The firm said it believed the athletic apparel maker will meet consensus earnings estimates for fiscal 2018-2019. American Airlines (AAL): Shares up here, 2.9%. The airline is the latest to raise their checked bag fee by $5 joining United Continental, Delta Airlines and Jet Blue. The first checked bag will be $30 and the second bag will be $40. Medtronic (MDT): Shares down here, around .24%. Medtronic has reached a deal to acquire medical device maker Mazor Robotics for about $1.64 billion in cash. The company is focused on strengthening its provision of technology for robotic-assisted spine surgeries. For more on today's big stock movers check out the Final Round, live at 3:30 p.m. ET, right here on Yahoo Finance.