Among individual stocks:
â¿¿ Google gained $5.14, or 0.7 percent, to $702.70 after releasing an updated map application for the iPhone. Google Maps came pre-loaded on previous iPhones but was dropped for the derided Apple Maps earlier this year.
â¿¿ SolarCity, which installs rooftop solar panels, began trading on the Nasdaq under the symbol SCTY. Shares were priced at $8 and shot to $11.79. Elon Musk, founder of PayPal and Tesla Motors, is the company's chairman.
â¿¿ Clearwire, a struggling provider of mobile Internet access services, jumped 41 cents, or 15 percent, to $3.16 in heavy trading after Sprint Nextel offered to buy out the minority shareholders of the company for $2.1 billion, giving Sprint total control.