From my memory in stocks, which does not go so long back, [they] tried at least twice in the past to get in control and signal a message of fear:
– The S&P500 crash to 666 points on March 6, 2009
– The Dow Jones drop of 666 points on February 2, 2018
I am now convinced this administration has put protection measures in place to avoid that to happen again e.g. around the election.