UK's Autotrader Group shares jump on report Palliser Capital takes stake
** Shares of British automotive marketplace Autotrader Group AUTOA.L jump 5.3% to 526.8 p ** Activist investor Palliser Capital has built a stake between 1% and 2%, according to a Sky News report ** Stock among top gainers on FTSE 100 .FTSE ** YTD, stock has fallen ~10% (Reporting by Tuhina in Bengaluru) ((tuhina@thomsonreuters.com))