Rollercoaster week in US stocks leaves investors braced for bumps ahead

A week of wild market swings has investors looking ahead to inflation data, corporate earnings and presidential polls for signals that could soothe a recent outbreak of turbulence in U.S. stocks. U.S. stock volatility has surged this month as a run of alarming data coincided with the unwinding of a massive, yen-fueled carry trade to deal equities their worst selloff of the year.