Just days after the S&P 500 climbed to a fresh record high as artificial intelligence stocks extended their remarkable rally, investors got a reminder that markets rarely move in a straight line. Friday’s sell-off erased roughly $1.4 trillion in market value from S&P 500 companies and marked the benchmark index’s steepest one-day decline since October ... The S&P 500 Wiped Out $1.4 Trillion in Market Cap After Red-Hot Jobs Report. Here’s Why