Stock markets around the world have regained positive momentum this year, and are likely to continue a gradual upwards climb for the rest of the year, leading investors told CNBC.

“The world isn’t as bad as we’re making it out, it’s just not getting better as quickly as we’d like it to,” Richard Madigan, chief investment officer, global access portfolios at J.P. Morgan Private Bank, told CNBC Tuesday. “Fundamentals are back, that’s great news.”