Here is what you need to know.

The S&P 500 settled at 2,874.69, erasing any doubt about this being the longest-running bull market in US history.

"The economy is strong," Fed Chairman Jerome Powell said in his speech at the Kansas City Fed's Jackson Hole Symposium on Friday. "Inflation is near our 2 percent objective, and most people who want a job are finding one... If the strong growth in income and jobs continues, further gradual increases in the target range for the federal funds rate will likely be appropriate."

The spread between the US 10-year and 2-year yields touched 19 basis points on Monday. It has gone negative prior to every recession dating back to the 1960s.

Fewer mutual funds are missing their benchmarks and JPMorgan and Vanguard Group recently announced new announced products that could put the active-management industry under even more strain.

Main Street workers enjoy their lowest unemployment rate in 18 years, the fact that it's so low could be portending a very dangerous period ahead for markets, according to Leuthold's chief investment strategist, Jim Paulsen.

After giving this a lot of thought, I have come to the conclusion that the best path for the foreseeable future is for Tesla to remain a public company," Musk told Tesla employees in an email sent Friday. "There are certainly a number of very compelling reasons to go private, so this is far from an obvious decision, but, on balance, being public appears to best serve the interests of Tesla and those who have invested in our future."

They are down 4.49% at $308.32 apiece following Musk's announcement. He had previously said he was trying to take the electric-car maker private at $420 a share.

The lira is weaker by 3.36% at 6.1839 per dollar as Turkish markets reopened after a week of holiday.

Hong Kong's Hang Seng (+2.17%) led the gains in Asia and Germany's DAX (+0.57%) is out front in Europe. The S&P 500 is set to open up 0.26% near 2,882.

Dallas Fed manufacturing will cross the wires at 10:30 a.m. ET. The US 10-year yield is up 1 basis point at 2.82%.