An errant post on X may have just shaken the stock market, showing how influential — and unreliable — the social media platform can be. Unsourced “headlines” about a potential “90-day ...

The stock market is volatile following headlines suggesting Trump was considering a 90-day pause on tariffs. White House press secretary Karoline Leavitt calls the headlines "fake news." ...

investors sparked a momentary rally Monday apparently based on what turned out to be fake news. The S&P 500 rallied 8.5% in 34 minutes midmorning, briefly adding $3.6 trillion in market value.