Did an anonymous X account send markets reeling today?

Monday’s trading action was bizarre in many ways.

But one specific mystery — about a misleading headline that sent stocks ping-ponging all over the place — highlights just how fragmented and expensive access to breaking financial news can be, even at times when it really matters to retail investors.

The US stock market did indeed go bananas this morning, thanks to a headline that falsely* claimed White House adviser Kevin Hassett had said President Donald Trump was considering a 90-day…