They use futures and options to shield investors from the full impact of market falls. At the same time they aim to provide most of the benefit of increases in share prices.
The UK fund will have an estimated gross yield of 5 per cent a year, paid twice yearly. Minimum investment is pounds 1,000 with an annual charge of 1.5 per cent. The initial charge is 5.25 per cent and there will be a 1 per cent discount until 23 November.