S&P, Nasdaq, Dow Jones slump as rates bounce on Fed concerns

Markets Open Monday Morning As Concerns Over Volatility Grow

Spencer Platt/Getty Images News

Stocks fell Wednesday after Treasury yields jumped on Fed comments.

The S&P (SP500) -0.6%, Nasdaq (COMP.IND) -0.7% and Dow (DJI) -0.3% were slightly lower.

The S&P was getting some support from its 200-day moving average around 3,940.

The 10-year Treasury