Here is what you need to know.

President Donald Trump is in Singapore for his historic summit with North Korean leader Kim Jong Un, which is scheduled to kick off at 9 a.m. local time on Tuesday (6 p.m. ET on Monday).

Larry Kudlow, the director of the National Economic Council, accused Trudeau of "diplomatic betrayal" for the comments he made at the closing of the G7 summit in regards to his disagreement with Trump's tariffs.

The Vollgeld reform - which would have moved control of money creation from private to public hands - was vetoed in a referendum on Sunday by a vote of 76% opposed.

The cryptocurrency plunged more than 10% over the weekend after the South Korean crypto exchange Conrail announced it was under "cyber intrusion" and that it lost 30% of its coins, Reuters reports.

US investment grade credit has been selling off even as stocks keep grinding higher.

The profits and stock prices of US companies have been dislocated since the financial crisis, Deutsche Bank analysts said in a recent research note.

The smartphone maker reported a loss of 7 billion yuan ($1.09 billion) ahead of what is expected to be the first Chinese depository receipts (CDR) offering, Reuters says.

Argo Blockchain has announced plans for an initial public offering, which it expects to value the company at 40 million pounds ($53.4 million).

China's Shanghai Composite (-0.48%) lagged in Asia and Britain's FTSE (+0.74%) is out front in Europe. The S&P 500 is set to open little changed near 2,779.

Dave & Buster's reports after markets close.