What matters in U.S. and global markets today By Mike Dolan, Editor-At-Large, Finance and Markets Subdued world markets eyed proposals for a Ukraine-Russia summit with caution, while updates on the shaky U.

The stock market is heading into a catalyst-filled week as Fed Chair Jerome Powell gets ready to speak at Jackson Hole and big retailers report earnings.

Federal Reserve Chair Jerome Powell is slated to speak on Friday at the Fed’s annual gathering of central bankers in Jackson Hole, Wyoming, and Evercore ISI warns that market participants might not love what he has to say.

According to Bloomberg Economics, "Federal Reserve Chair Jerome Powell has the opportunity to settle the speculation with his speech at the annual Jackson Hole Symposium", but economists Anna Wong, Stuart Paul, Eliza Winger, Estelle Ou and Chris G. Collins think he won't be as frank this year.

U.S. stocks ended mostly flat on Monday as investors followed the meeting between U.S. President Donald Trump and Ukrainian President Volodymyr Zelensky and awaited Federal Reserve Chair Jerome Powell's Friday speech at the annual monetary-policy symposium in Jackson Hole,