Stocks Slump for First Time This Week as Fiscal-Cliff Talks Skid

Tickers in this article: AA DLPH FDX GDI GE GIS GM JCI KCG NAV ONTY ORCL SPW TIE UBS ^DJI ^GSPC ^IXIC

General Motors (GM) said Wednesday it will buy 200 million shares of common stock held by the U.S. Treasury for $5.5 billion, or $27.50 a share. Shares climbed 6.6%.

Navistar International (NAV) , the manufacturer of international brand commercial and military trucks, posted a steeper-than-forecast fourth-quarter loss as revenue declined by 24%. Shares tumbled 8.5%.

-- Written by Andrea Tse and Joe Deaux in New York.

>To contact the writer of this article, click here: Andrea Tse .