Also, Adobe said said its sales outlook for the fourth quarter would be helped by new customer additions, allaying investor fears of a slowdown in its growth.
Also on the tech front, Texas Instruments said its proposed $6.5 billion acquisition of NationalSemiconductor cleared all necessary regulatory reviews.
United Technologies is discussing the final terms of an all-cash purchase of Goodrich with the aim of completing a deal within the next several days, according to people familiar with the matter.
Meanwhile, General Motors CEO expressed concern about the risk of a recession in the United States, but said pent-up demand was likely because of the need to replace aging cars in the world's largest economy.
Orexigen Therapeutics skyrocketed more than 70 percent after the drugmaker said it plans to start a large heart-safety trial of its obesity drug in 2012 and that positive results could win over regulators who rejected the pill earlier this year.
European shares were lowerafter strong gains in the previous session, with investors taking some money off the table ahead of the conclusion of the Fed meeting.
Meanwhile, the latest minutes of the UK’s central bank, released on Wednesday morning showed members of the bank’s rate setting committee saw an increased likelihood of further monetary easing link—if economic conditions did not improve significantly.
The news followed the latest IMF's forecast for UK economic growth which it cut from 1.7 percent for 2011 to just 1.1 percent.
In economic news, the Mortgage Bankers Association said applications for home loans edged upfor the week ending Sept. 17. The prior week showed an increase of 6.3 percent.
Existing home sales data for August is also due from the National Association of Realtors at 10 am New York time. Economists polled by Reuters predict a 2.7 percent increase for August, following a 3.5 percent decline in July.
—Follow JeeYeon Park on Twitter: twitter.com/JeeYeonParkCNBC—
On Tap This Week:
WEDNESDAY: Existing home sales, oil inventories, FOMC mtg announcement, Coca-Cola analyst mtg
THURSDAY: Jobless claims, FHFA home price index, leading indicators, Geithner speaks at Global Economy Summit; Earnings from Discover Financial, FedEx, Nike
FRIDAY: IMF/World Bank annual mtg; Earnings from KBHome
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