LMS Capital will Tuesday join the rush to desert Aim as the private equity group run by the son of property baron Lord Rayne unveils plans to join the full list and revive its flagging share price.

Companies have been leaving the junior market at a rate of about 25 a month this year. The number of Aim-quoted companies slumped to 1,455 at the end of April, more than 200 fewer than a year earlier.