Google-parent Alphabet’s stock price plunges, erasing more than $500 billion in value

Alphabet shares plunged as much as 15.8% on Tuesday, on track for the company's worst single-day drop ever, erasing more than $500 billion in market value. The steep decline hit the Google parent amid a broad tech selloff, marking a historic loss for one of the world's most valuable companies. Investors reacted sharply, with the stock's slide wiping out hundreds of billions in a single session.