@EddyElfenbein Historical rallies (after declines/during economic crisis): 
From Sept 2000 - Mar 31, SP500 decline = -23%. Apr - May 31 2001 = +8.5%
Nov 2007 - Mar 31 2008 = -13.9%. Apr through May 31 2008 = +6.2% gain.
Sep - Nov 30 1929 = -33% . Dec 1929 - Mar 1930 = +21%. 
Apr - May? 2020 = ?