An emerging markets investment trust run by fund manager Mark Mobius has launched a new strategy to allow disenchanted investors to put a quarter of their capital into a index-tracking fund, following criticisms over the trading discount of its shares.

The £1.9bn (€2.8bn) Templeton Emerging Markets Investment Trust, or Temit, was criticised in December last year by shareholder City of London Investment Management for repeatedly trading shares at a discount to the value of the assets.