Shares in Thomas Cook fell back after the holiday firm said winter bookings are going well after a year in which profits were blighted by the volcanic ash cloud in April.Adjusted underlying profit before tax in the year to 30 September was in line with market expectations at £277.0m, down 6.1% from £294.9m the year before.De La Rue is today's star performer after a report in the Financial Times said a Bank of America Merrill Lynch gave the beleaguered banknote printer a 'fair value' of as much as 830p. Mining stocks Hochschild (silver and gold, South America) and Talvivaara (zinc and nickel, Finland) are also going well.FTSE 250 - RisersDe La Rue (DLAR) 632.50p +9.43%ITE Group (ITE) 201.50p +7.70%SThree (STHR) 307.50p +7.14%Hochschild Mining (HOC) 562.00p +6.84%Micro Focus International Plc (MCRO) 354.00p +6.82%Sportingbet (SBT) 61.80p +6.55%Talvivaara Mining Company (TALV) 520.50p +6.07%Daejan Holdings (DJAN) 2,527.00p +5.78%John Wood Group (WG.) 491.70p +5.33%PartyGaming (PRTY) 246.80p +5.29%FTSE 250 - FallersThomas Cook Group (TCG) 180.50p -3.11%Xchanging (XCH) 102.30p -3.03%Kenmare Resources (KMR) 25.30p -2.32%Intermediate Capital Group (ICP) 309.00p -1.21%Helical Bar (HLCL) 276.80p -1.07%Pennon Group (PNN) 623.00p -0.80%Northumbrian Water Group (NWG) 327.40p -0.79%Pace (PIC) 184.00p -0.76%Computacenter (CCC) 361.00p -0.50%Gartmore Group Ltd. (GRT) 101.30p -0.49%