U.S. stock indices opened in the red Monday morning following losses in European markets after Greece failed to elect a new president. The Dow fell 17.7 points, or 0.1% to 18,033, while the S&P 500 dropped 2.4 points, or 0.12% to 2,086. The Nasdaq fell 7.6 points, or 0.16% to 4,799. Crude oil futures rose [...]