By Elliot Gulliver-Needham Rumours are circulating in the City that investment trusts listed in the UK may be looking to move their listings as far as Switzerland to avoid old EU rules over cost disclosure. Currently, UK institutions and wealth managers must ‘double dip’ and disclose investment trust costs as part of their own costs, making the products look more expensive. While this is also the case for open-ended funds, investment trusts are traded instruments which, campaigners argue, means their market values should fully reflect fees. Anger over this problem has pushed a rumour to circul…