KEY POINTS
  • The 9-year bull market will likely end in mid-2019 or 2020, says J.P. Morgan strategist David Kelly.
  • "We got all this sugar rush of fiscal stimulus right now," he says. "But it's a sugar rush."
  • Kelly recommends international stocks for long-term investing.

The party might be over soon for the 9-year-long bull market, J.P. Morgan strategist David Kelly told CNBC.

"This economy will slow [in the] second half of 2019, 2020," Kelly, who is chief global strategist at J.P. Morgan Asset Management, said Wednesday on "Power Lunch."