Wall Street sentiment quickly shifted Thursday and Friday. After November retail sales data from the U.S. Census Bureau and a Federal Reserve System report on industrial production were released Thursday morning, a two-day stock market plunge ensued.

The two bad economic data surprises came after the Federal Reserve Board chair, Jerome Powell, said at a press conference on Wednesday that policymakers had voted at their December 13-14 meeting to raise the central bank’s lending rate by a half-point.