An earlier version of this story was incorrect and withdrawn by Reuters.
This story was revised to delete incorrect references to who owns eHarmony.
This story was revised to correct the full name of NATO, the North Atlantic Treaty Organization.
This story was revised to correct the spelling of Wardwell.
This story was revised to correct that Klaus Friedl is managing director for Phoenix Solar Oman.
This story was updated to state that U.S. crude oil closed at $50.35.
This story has been revised to reflect that Lululemon shares are down 20 percent this year.
This article has been altered to accurately reflect what Ben Rogoff, a fund manager at Polar Capital, told CNBC.
Thirty-three of the largest American oil producers have hedged 648,000 barrels a day of production since the fourth quarter of 2016. An earlier version misstated the year.
This story has been updated to accurately reflect Adam Michel's name.