Apple loses crown

Apple shares extended their losses Friday, ending a miserable week for the California tech giant as it surrendered its position as the world's biggest company based on market value.
Apple ended down 2.36 percent at $439.88, giving it a market capitalization of $413 billion, while oil giant ExxonMobil rose 0.36 percent to $91.68 with a market cap of $418 billion to edge into first place.