Occupy Wall Street sounds off after the protestors are allowed back into lower Manhattan's Zuccotti park.
Shares of Amazon are down sharply after the company posted weak earnings results, due to heavy investments in new warehouses and digital products like the Kindle Fire.
Shares of Netflix plunge after the online and mail-order movie company shed 800,000 subscribers last quarter.
Investors cheer Caterpillar's latest earnings report, as the construction equipment maker beat estimates and raised its forecast.
General Electric reported lukewarm profit and sales, disappointing investors who had hoped for more from the economic bellwether.
At the CNN Western Republican debate in Las Vegas, the GOP presidential field ganged up on front runner Herman Cain.
The tech giant reported stellar sales of Macs and iPads but its fourth-quarter earnings and revenue missed forecasts.
Goldman Sachs is in the red for the first time since 2008, while BofA ekes out a $6.2 billion profit.
Kinder Morgan's acquisition of rival pipeline operator El Paso will create the fourth-largest energy company in North America.
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