Shares in financial software firm London Bridge Software have hit a four-year low as index-tracking funds bail out ahead of the company's dismissal from the FT-SE 250 Index on 24 June.
By mid-morning the company's stock was trading at £0.87, a ten per cent drop on the overnight close and well off a year high of £2.13.
London Bridge is one of ten stocks earmarked for the drop from the FT-SE 250 when the latest shake-up in the index takes place in ten days time. News of London Bridge's imminent exit from the top 250 was released to the markets after the close on Wednesday.