Weak global economic conditions and a downgrade of Well Fargo by prominent banking analyst Richard Bove spooked investors even as Morgan Stanley and Yahoo reported better-than-expected earnings.  The Dow Jones industrial average slipped below the 10,000 level yesterday as markets pulled back in the final hour of trading.

Bove of Rochdale Securities said earnings at Well Fargo (NYSE:WFC) were helped by mortgage-servicing fees rather than improving business trends, and trimmed his rating on the bank to “sell" from “hold."  However, Well Fargo and Morgan Stanley (NYSE:MS), which reported its first quarterly profit in a year, were behind the market’s strength earlier in the session.  Bove also cited accelerating loan losses at the firm for the downgrade.  After Bove’s cut, FBR slashed its rating on the firm to "underperform," questioning Well Fargo's earnings quality.

The Dow Jones industrial average fell below the psychologically important 10,000 level, declining 92.12 points, or