U.S. stocks started Tuesday's session on the back foot after retreating from fresh records Monday, even as quarterly corporate results continued to come in strong. The Dow Jones Industrial Average /zigman2/quotes/210598065/realtime DJIA +0.66% dipped 120 points, 0.4%, to open near 33,597, while the S&P 500 /zigman2/quotes/210599714/realtime SPX +0.74% lost 11 points, 0.3%, and started trading near 4,153. The Nasdaq Composite /zigman2/quotes/210598365/realtime COMP +0.88% shed 11 points,0.1%, and traded near 13,904. Stock-market bellwethers like International Business Machines Corp. /zigman2/quotes/203856914/composite IBM -0.90% and Johnson & Johnson /zigman2/quotes/201724570/composite JNJ +0.45% both beat analyst expectations. IBM shares were nearly 3% higher after the bell, while Johnson & Johnson share dipped.