Stocks turned lower in afternoon trading, and that pressure continued through Friday. The S&P 500 fell as much as 1.6%, and has now given back more than half of its torrid 4% post-election gain. The Nasdaq Composite dropped 2.7% at intraday lows.

U.S. stocks fell to their worst loss since Election Day as the boost that Wall Street got from last week’s victory for Donald Trump and a cut to interest rates by the Federal Reserve kept fading.