A Nasdaq rule change has created the perfect storm on Wall Street.
Statistically, Wall Street has enjoyed having President Donald Trump in the White House. During his first term, the preeminent Dow Jones Industrial Average (^DJI 1.35%), benchmark S&P 500 (^GSPC 2.64%), and tech-driven Nasdaq Composite (^IXIC 4.18%) ... [5590 chars]