The survey, carried out by Reuters, questioned ten asset managers, managing nearly Â£800 billion between them.
It found that the average equity holding was at 73.2 per cent in April, up 0.3 per cent from last month.
Meanwhile, bond holdings were down 0.2 per cent from 19.3 per cent last month to 19.1 per cent in April, and cash holdings were down slightly at 4.4 per cent of total assets.
The increased interest in equity is down to the investment gains being higher than before, however industry insiders have urged caution, believing that equity prices have either reached their peak, or will do by the end of the year.
Fund managers appear to be unconcerned by China's decision to raise interest rates, believing that steady economic growth will not be curtailed in one of the fastest growing economies in the world.
The US economy, however, is more of a concern, with the prospect of increased wages and fears that the economy is weaker than was first thought making investors less confident.