Amazon's advertising business grew 18% in the fourth quarter
1. Amazon's Q4 ad revenue was $17.29 billion, up 18% year-over-year. 2. Company's Q4 sales reached $187.79 billion, exceeding estimates. 3. Disappointing guidance led to a decline in Amazon's stock price. 4. Amazon ranks third in global digital advertising, trailing Alphabet and Meta. 5. Competitors like Meta and Alphabet reported strong revenue growth.