Amazon ends year on strong note but forecasts weak upcoming quarter

1. Amazon's Q4 earnings exceeded estimates with $187.79bn revenue. 2. Holiday shopping showed an 8.7% year-over-year increase in online spending. 3. Next quarter's sales forecast fell short of analyst expectations at $151bn-$155.5bn. 4. Cost-cutting measures from layoffs have improved Amazon's financial performance. 5. AI innovations, including Trainium2, are expected to drive future growth.