In 2006 his Special Situations Fund was split. The success of the fund had brought in so much money from investors, it had become the UK's largest open ended fund (OEIC) and it was feared that the fund was becoming too big to manage successfully.  The fund was split into UK and Global Special Situations funds, with the Global fund passed to Jorma Korhornen and the UK fund continuing under Bolton's stewardship until the end of 2007.  With Bolton's step back from fund management, many questioned whether the fund could continue to outperform the market in future. 