Nvidia nears $6 trillion market value after 23% stock rally

Nvidia shares rose as much as 3% on Friday, reaching an intraday high not seen since May, before closing 1.3% higher. The gain extended its 23% rally from a late-July low, while its market value reached $5.6 trillion, less than $400 billion short of $6 trillion. Investor optimism over AI agents and Nvidia's $150-billion buyback plan has boosted the stock.