Ran-dumb:

$SPX declined more than -0.50% today and it's RSI(14) is still &gt; 70.  

That's not the norm.  

All dates that match:

6/9/2020
1/29/2018
3/2/2017
6/18/1997
2/14/1996
9/21/1995
1/10/1992
2/14/1991
2/12/1991