U.S. stock indexes got off to a mixed start Monday, as investors weighed the meaning of soft construction and manufacturing data. At 11 a.m., the Dow rose 63.66 points, or 0.22% to 15.149, rebounding from the 209-point decline on Friday. But the Standard & Poor’s 500 index fell 0.25% to 1,626.7 points, and the Nasdaq [...]