People walk past a T-Mobile store in San Francisco, California
Justin Sullivan | Getty Images
Check out the companies making headlines on Monday after the bell:
T-Mobile – T-Mobile shares rose more than 2% in after-hours trading after Warren Buffett's Berkshire Hathaway announced a stake in the wireless company. A 13F filing revealed that the conglomerate bought 2.4 million shares of T-Mobile in the third quarter.
Costco – The wholesale giant's shares rose more than 2% after the company decided to pay a special dividend of $ 10 per share. CFO Richard Galanti said this is possible thanks to Costco's "strong balance sheet".
SmileDirectClub – SmileDirectClub rose 3.2% after the bell as quarterly results were better than expected. The tele-dentistry company posted a loss of 11 cents per share on sales of $ 168.5 million. Analysts polled by Refinitiv expected a loss of 14 cents per share on sales of 146.2 million US dollars.
Baidu – The Chinese internet company saw its share price decline 0.6% even after it released quarterly results that exceeded analyst expectations. Baidu posted adjusted earnings of CNY 20.35 per share on revenue of CNY 28.23 billion. Analysts had forecast earnings per share of CNY 13.62 on sales of CNY 27.45 billion.
Tesla – Tesla shares rose more than 9% in after-hours trading after S&P Dow Jones Indices announced it would add the electric car maker to the S&P 500 effective December 21.