Last week scored a follow-through win for the bulls: The Nasdaq 100 climbed 2.9%, its biggest daily percentage gain since May 26th when Nvidia gapped up on earnings. The big news late Friday was that Moody’s Investors Service cut its outlook on the U.S. sovereign credit rating to negative from stable, citing higher interest rates and doubts about the government’s ability to implement effective fiscal policies. It was more of a warning then credit downgrade.