Shares in Regent Inns fell 11p to a new low closing price of 50.5p yesterday, 17.9% down, after the company issued a profits warning over continued sales losses at its Walkabout chain. Punch Taverns shares were also hit, down 3.6% to 545p, despite interim results which showed like-for-like outlet profit growth of 3.9%. Among other fallers in the sector, Luminar shares were down 5% to 456p.