Downside risks in Europe and an unexpected slowing in the US services sector has investors rethinking the outlook for a second day.
European Central Bank President Mario Draghi quashed hopes for relief in the form of lower borrowing costs by saying policy makers this week didn't discuss cutting interest rates. The central bank kept its key rate at 1 per cent, even as it issued a warning.
"The economic outlook continues to be subject to downside risks," Draghi told a news conference in Barcelona.
Across the Atlantic, the Institute for Supply Management reported that its services index dropped to 53.5 in April from 56 in March. Economists polled by Reuters expected a 55.5 reading.
"We're seeing some softness in the economy after a good start to the year," Gary Thayer, chief macro strategist at Wells Fargo Advisors in St. Louis, told Reuters. "We think it's a temporary cooling off and that the outlook is still favourable this year because of easy money policies around the world and declining inflation."