Check out which companies are making headlines after the bell Thursday:
Google - The search engine posted fourth-quarter earnings per share of $12.01, excluding items, on $16.86 billion in revenue. Analysts had estimated earnings excluding items of $12.20 a share on sales of $16.75 billion. Its shares were slightly higher in after-hours trading.
Amazon.com - The online retailer's shares tumbled after it tallied fourth-quarter EPS of 51 cents versus an estimate of 66 cents. It reported $25.59 billion in revenue, versus a $26.06 billion estimate. It forecast first-quarter revenue of $18.2 billion to $19.9 billion, versus a $19.67 billion estimate.