just like the dow did when it dropped to 12.000 back in march
$SSEC closed above 4000 after breaking above 3050 15 yr trend line resistance as alerted during March 2007.
Also, noted "1000" price action performance after breaking out during 2006 mid year reversal, now, market participants are anticipating 1000 point action after each breakout.
Even though $SSEC closed above 4000, being cautious is a good thing with an overshoot consideration for ST, but as we can see, the breakout from the LT trendline is bullish.
http://www.stockcharts.com/c-sc/sc?s=$SSEC&p=M&st=1991-01-07&i=p41832746448&a=103246091&r=37.png