Morning Bid: Nvidia beats, but fails to provide spark

Investors hoping that Nvidia's eagerly-awaited earnings after the U.S. close on Wednesday would inject renewed vigor into world markets will be disappointed, heralding the prospect of a lukewarm open in Asia on Thursday. Wall Street spent all day Wednesday firmly in the red before a late rally, bond yields and the dollar were higher, and a weak 20-year U.S. Treasury bond auction was a reminder of how deep Washington's fiscal deficit runs and the strain on investors to fund it. Then came Nvidia.