Gold prices rose on Tuesday, buoyed by lower treasury yields and a weaker dollar amid prospects of lower U.S. interest rates, while investors looked ahead to the Federal Reserve chair's speech at Jackson Hole later this week.

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.

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.

Subdued world markets eyed proposals for a Ukraine-Russia summit with caution, while updates on the shaky U.S. housing market on Tuesday and this week's Federal Reserve conference in Jackson Hole dominated thinking.

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,

Jerome Powell has the ideal platform Friday to deliver a clear signal the Federal Reserve is about to resume cutting interest rates. But the economy isn’t giving him an equally clear signal that now is the time.

Incoming information has confounded Fed Chair Jerome Powell's data-dependent strategy by pulling in both directions.