U.S. stocks were mixed Tuesday, as investors considered disappointing economic reports, and a drop in Coca-Cola, against a $25 billion deal by Actavis to acquire Forest Laboratories. -The Dow Jones Industrial Average dropped 0.15% or 23.99 points to 16130.40 -The S&P 500 index advanced 0.12% or 2.12 points to 1840.75 -The NASDAQ Composite advanced 0.68% or 28.76 points to 4272.79 Forest Laboratories surged 29 percent after Actavis Plc agreed to buy the maker of the Alzheimer's drug Namenda. Shares of Coca-Cola were down 3.9% after the beverage company's fourth-quarter profit and revenue came in below analyst forecasts. D.R. Horton Inc. and PulteGroup Inc. lost more than 1.5 percent as a gauge of homebuilder confidence declined by the most on record in February amid bad weather that hurt sales. A gauge of confidence among home builders plunged in February, dropping to the lowest level in nine months, led by weaker views on present sales of single-family homes, according to data released Tuesday. The housing-market index dropped to 46 this month from 56, signaling that builders, generally, are pessimistic about sales trends, according to the National Association of Home Builders/Wells Fargo, which cited "unusually severe weather conditions," among other factors. Manufacturing activity in the New York region gave up most of the strong gains made during the prior month although it remained in positive territory, according to data released Tuesday. The report fits a picture of a manufacturing sector struggling with severe winter weather. The ISM index for the U.S. showed manufacturers suffered from January's cold weather last month.