NEW YORK CITY

The companies whose shares are moving in pre-market trade on Tuesday are: National Semiconductor, Nvidia, Advanced Micro Devices, Microsoft, Analog Devices, Texas Instruments, H & R Block and Pultegroup.

Exchange operator Nasdaq OMX Group Inc said on Tuesday it will rebalance its benchmark Nasdaq-100 index, cutting the weighting of Apple Inc.

Stock index futures pointed to a lower open on Wall Street on Tuesday, with futures for the S&P 500 down 0.3 percent, Dow Jones futures down 0.1 percent and Nasdaq 100 futures down 0.8 percent at 3:52 a.m. EDT.

Stock index futures pointed to a lower open on Wall Street on Tuesday, with futures for the S&P 500 down 0.3 percent, Dow Jones futures down 0.1 percent and Nasdaq 100 futures down 0.8 percent at 3:52 a.m. EDT.

Deutsche Boerse will wait until bid target NYSE Euronext responds to a rival approach from Nasdaq and Intercontinental Exchange before considering raising its own offer, sources familiar with Boerse's thinking said on Monday.

The S&P 500 met tough overhead resistance on Monday as traders saw little reason to push up stock prices in the face of lingering geopolitical uncertainties that have weighed on equities recently.

Stock index futures were little changed on Monday, with the S&P 500 facing a level where selling has clustered in recent sessions.

U.S. stocks advanced in early trade on Monday as investors looked to extend a two-week winning streak in the major indexes.

Deutsche Boerse won't make a decision on a higher bid for NYSE Euronext until the U.S. exchange's board reacts to last week's counter-offer from Nasdaq and IntercontinentalExchange, sources said.

Stocks were set to open slightly higher on Monday, with the S&P 500 facing a level where selling has clustered in recent sessions.

NEW YORK Stock index futures pointed to a flat to higher opening for Wall Street on Monday, with futures for the S&P 500 up 0.1 percent, Nasdaq futures up 0.1 percent and Dow Jones futures trading flat by 0841 GMT.

Found: One tweeting Egyptian cobra that slinked out of its cage at the Bronx Zoo a week ago and fascinated more than 210,000 people following its Twitter feed as it traveled around New York.

Compensation packages for the chief executives of bailed-out firms American International Group , Ally Financial and General Motors will not increase in 2011, the Treasury Department said late on Friday.

U.S. stocks started a traditionally healthy month on strong footing on Friday after solid jobs figures, but the S&P 500 may need help to break to new multi-year highs.

U.S. stocks rose on Friday after employment notched a second straight month of solid gains while the jobless rate fell to a two-year low.

The companies whose shares are actively trading in Friday's morning session include Bank of Ireland, Alexander & Baldwin, NYSE Euronext, SRA International, Logitech International, Office Depot, Ascent Solar and Omeros.

U.S. stocks advanced in early trade on Friday following better-than-expected monthly non-farm payrolls and unemployment data.

U.S. stocks rose on Friday after employment notched a second straight month of solid gains while the jobless rate fell to a two-year low.

U.S. stock index futures pointed to a higher open on Friday as employment notched a second straight month of solid gains while the unemployment rate fell to a two-year low.

The top pre-market NASDAQ Stock Market gainers are: Golar LNG, Star Scientific, Ebix, Sino Clean Energy, and AEterna Zentaris. The top pre-market NASDAQ Stock Market losers are: Omeros, Atrinsic, Logitech International, Ascent Solar Technologies, Xyratex, and Nasdaq OMX Group.

The Bronx Zoo's Egyptian cobra was found in the dark corner of the zoo's reptile house after being missing for almost a week.