NYSE Trader

Check out the companies making headlines after the bell Monday:

Shares of technology giant Alphabet climbed after the bell Monday, ballooning its market capitalization to $570 billion to unofficially surpass Apple as the world's largest company. The technology giant posted quarterly earnings that beat analysts estimates by a wide margin, with earnings per share of $8.67 on revenue of $21.33 billion, versus the expected $8.10 earnings on $20.77 billion.