BUZZ-Ingenico: worst day in almost 7 yrs as submits Worldpay bid

** French payments company Ingenico (Paris: FR0000125346 - news) down 9% & poised for biggest one-day decline since Dec 2008 in volume

** Submits a bid to buy UK firm Worldpay, two sources familiar with the matter say, as contest heats up to take control of co

** Worldpay, owned by private equity firms Advent and Bain, is heading for a London flotation in the autumn that could value it at around 6 bln pounds

** But co been targeted by several private equity houses, including CVC (Taiwan OTC: 4744.TWO - news)

** More than twice Ingenico's 90-day daily avg volume traded (RM (LSE: RM.L - news) : tricia.wright1.thomsonreuters.com@reuters.net)