Apple overtakes Nvidia as world's most valuable company on iPhone Duo launch day

Apple shares traded above $351 on Friday, setting a new intraday record, as the company's market cap reached about $5.12 trillion. That returned Apple to the top spot among global companies by valuation, ahead of Nvidia and Google, on the day the $2,000 iPhone Duo went on sale.

• Apple stock traded above $351, a new intraday record
• Market cap reached roughly $5.12 trillion
• Apple reclaimed the top valuation spot from Nvidia
• The $2,000 iPhone Duo launched the same day