Almost three-quarter of respondents to a recent survey in London of high net worth individuals and their advisors predict that Greece will have left the euro by May next year, adding to similar findings from a recent straw poll of private banks by this publication.

A poll undertaken by the World Gold Council found that 71 per cent of respondents said Greece would leave the euro next year, which the WGC said was a “major shift in just a few months”.

A week ago, WealthBriefing polled wealth management firms and although some declined to give their answers by name, some firms gave the chances of a Greek exit, or "Grexit", as high as 90 per cent. 

Some 76 per cent of respondents think that short-term investment decision-making has become the norm. Meanwhile, 45 per cent of total respondents believe European wealth assets will grow in real terms by 2020, compared to the level in 2012. 

Votes were counted electronically from among members of the audience at a conference, held at the London Stock Exchange late last week.

“In the current unprecedented environment where conventional wisdom on portfolio management does not appear to apply, short term decision making has become the norm as reflected in our poll. With the prospect of continued market uncertainty, the challenge for investors is to develop new strategies to cope with higher levels of ambient risk,” Marcus Grubb, managing director, investment, at the WGC, said.