US stocks up on European hopes

US shares extended gains on Tuesday as investors remained optimistic about forthcoming summit on December 9. S&P 500 Index added 0.1% or 1.39 points reaching 1,258.47while Dow Jones Industrial Average traded up 0.4% or 52.30 points to 12,150.13. Only the Nasdaq Composite Index experienced modest loss of 0.2% or 6.20 points and closed at 2,649.56.  Nevertheless, Art Hogan Lazard Capital Markets' strategist suggests absence of detailed news from summit could hit heavily the markets.