Schaeffers Research: The number of self-proclaimed bulls just hit its lowest point in more than a decade, according to the latest American Association of Individual Investors (AAII) survey. Specifically, just 17.9% of respondents identified as bullish this past week -- a drop of 4.3 percentage points from the previous week -- marking the lowest point since April 14, 2005 (at 16.5%). The four-week average of bullish sentiment now stands at 22.9%, which is the lowest reading since Feb. 20, 2003..