Threadneedle's head of European equities William Davies has said it is "inevitable" Greece will default in the next two years.
Allianz Global Investors has warned European growth will not return to pre-credit crisis levels for years to come.
The UK economy officially grew by 0.5% in Q1, according to the Office for National Statistics'(ONS) third and final estimate for the period.
With many headwinds facing the globe, it is going to be a long and colourful summer for equities markets, says Julian Chillingworth, chief investment officer, Rathbone Unit Trust Management.
US Gross Domestic Product (GDP) increased at an annual rate of 1.9% in Q1 2011, marginally up from a previous estimate of 1.8%.
The Federal Reserve has scaled down its growth forecast for the US in the face of higher energy costs and weak manufacturing data.
Negyal and Timberlake's stockpicking approach ensures year of solid positive performance.