Mark Jones and Colin Rowlinson, the former Yates Group executives, are thought to have increased their holding in Inventive Leisure, the AIM-listed operator of Revolution vodka bars, to around 3.5%. Jones and Rowlinson are believed to have acquired the stake through a series of purchases over the past month, through a mix of ordinary share trading plus so-called Contracts-for-Difference (CFDs), a mechanism that enables investors to buy shares through a third party, thus maintaining their anonymity. The duo were recently parachuted in at rival Ultimate Leisure, the North-East based bar and pub group. Inventive is regarded as a takeover target for a number of companies including Ultimate, Regent Inns and Laurel.