Apple reports its best quarterly earnings ever, beating expectations for Mac and iPhone sales over Christmas. On a conference call, CEO Tim Cook says that supply chain issues are showing signs of fading. Not so for Tesla, however, with shares dragging down Wall Street during another volatile session on Thursday after CEO Elon Musk sounded a warning over chip shortages. Luxury giant LVMH enjoys record FY profits and sales buoyed by demand for high-end accessories in the U.S. and China. And President Biden has warned Ukrainian President Volodomyr Zelenskyy that an invasion by Russian forces may be imminent after Pentagon reports of further troop build-ups at the border overnight.   

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