SP500 ∆ High made, Oct 1973 2,744 days (7.5 yrs later) Made NEW all Time high in Sept 1980   ∆ High made, March 2000 2,623 days (7.2 yrs later) Made NEW all Time high in May 2007  ∆ High made, Sept 2007 1,997 days (5.5 yrs later) Made NEW all Time high in March 2013  Now 2020