Shares in Rank Group jumped 6.2 per cent after it became clear the bingo and casino operator will retain its London listing, ending lingering questions in the wake of a 150p a share offer from Hong Kong-based Guoco Group. The Rank board initially said the deal significantly undervalued the company. Guoco could have delisted the business if it had achieved a 75 per cent stake in the company, but it fell narrowly short as the offer closed. The announcement marks the end of a turbulent time for Rank, whose board flip-flopped a staggering four times in its recommendation to shareholders over the offer. It also parted company with its chief executive Ian Burke before re-hiring him within a week.