Browse Stacks: Patterns: content.screencast.com/use.../SPX41913.gif

$SPX 30 min chart 

The chart is a bit cluttered, but illustrates the market's desire over the past 2 weeks to retrace 50%, and then resume its fall. First, the fall from 4/11 - 4/15 was retraced 50% on 4/16 before resuming the fall. Next, the decline from 4/17 - 4/18 was retraced 50% on 4/19. I'm still looking for a flush under last week's lows.