STOCKS TAKE A DIVE: Here's what you need to know

US stocks slipped for a second straight day as weakness in commodities dragged raw-material producers lower. The S&P 500 and the Dow Jones Industrial Average lost 0.6%, while the more tech-heavy Nasdaq Composite index all fell 0.5%. First up, the scoreboard: Dow: 23,271.28, -138.19, (-0.59%) S&P 500: 2,564.62, -14.25, (-0.55%) Nasdaq: 6,706.21, -31.66, (-0.47%) US 10-year yield: 2.34%, -0.05 WTI crude oil: $55.24, -0.46, -0.83% 1. Stocks are flashing an ominous signal not seen...