U.S. stocks ended a volatile session slightly higher, helped by gains in technology shares, though uncertainty over Britain's exit from the European Union kept investors on edge about global growth.
U.S. Bank, senior portfolio manager, Eric Wiegand:
(SOUNDBITE) (English) U.S. BANK, SENIOR PORTFOLIO MANAGER, ERIC WIEGAND, SAYING:
"You know, investors continue to confront what seems to be an increasing wall of worry. You know, there's genuine concern over a policy mistake being made, and whether that's a monetary policy or fiscal policy, you know, investors are just anxious to get clarity around what what type of support they they will see."
The rate-sensitive bank stocks - including Wells Fargo, Citigroup, and Bank of America - tumbled on worries that Brexit could hamper global growth.
Energy stocks retreated on falling oil prices.
And global pharma stocks weighed.
Apple stock fell on news that Qualcomm won a preliminary order from a Chinese court banning several iPhone models in the country due to patent violations. But later reversed its course after it appealed the decision. That lifted the entire tech sector.
In Europe, markets closed lower on Brexit confusion, unrest in France, and U.S - Chinese trade tensions.