We have talked about the weekly winning streaks of the major indices. As of Friday, most were 17 for 21 -- or winners 81% of the time. During that same time, the S&P 500 (SPX) jumped 27% and the Nasdaq and the Nasdaq 100 popped 30%. In sports, going 17/21 is about as good as it gets (although field goal kickers are sometimes better). One might expect a pullback (ce