Stocks started the new year with a whimper, opening flat in the first trading session of 2009. The Dow rose 26 points, while the S&P and Nasdaq saw 0.3% and 0.2% gains. Many traders were watching oil, which fell $3 today after a 14% surge on Wednesday. GM shares rose almost 9% after GMAC amended its financing agreement with the auto giant, and Citi rose 2.4% when its CEO and chairmen said they’d forego their 2008 bonuses. (More stock market stories.)