 A loss of just over 24 percent on May 5, 1893 from 39.90 to 30.02 signaled the apex of the stock effects of the Panic of 1893; the 2008–09 crash was a 61.8 percent retracement thereof that began on October 11, 2007 and lasted until the closing low on March 9, 2009.A point swing is the difference between the intraday high and the intraday low.