As BofA’s Michael Harnett reminds us, on Thursday, April 28th, the US equity “bull market” becomes second longest ever. Next Thursday the current bull market will be 2607 days old, exceeding the bull market of June 1949 to August 1956 by one day; the longest bull market ever was October 1990 to March 2000 (3452 days). The following chart shows the evolution of the three Great Bull Markets.