Ocado's share price fell dropped by 14% after 11% shareholder John Lewis cashed in now that the six month lock-up period following last July's float has ended. Also lower is pubs group Mitchells and Butlers after naming senior independent director Simon Burke as its new chairman, taking over from John Lovering who steps down today.On the rise is contractor and support services specialist Carillion, which is paying £306.5m for green support services business Eaga.Emergency repair service provider Homeserve is still predicting a year of strong growth with profit matching City expectations.Shaftesbury, the property company focused on London's theatre-land district, was marginally higher after saying demand for its properties has remained healthy since the end of September. JKX Oil and Gas has entered into an agreement with Hungarian Horizon Energy (HHE) to farm-in to the drilling of up to seven exploration wells in the Turkeve area of north east Hungary.FTSE 250 - RisersGem Diamonds Ltd. (DI) (GEMD) 295.00p +4.24%Aquarius Platinum Ltd. (AQP) 417.60p +3.62%JPMorgan Indian Inv Trust (JII) 407.90p +3.50%SDL (SDL) 653.00p +3.49%John Wood Group (WG.) 571.50p +3.07%AG Barr (BAG) 1,115.00p +2.76%Fidessa Group (FDSA) 1,680.00p +2.75%BlackRock World Mining Trust (BRWM) 801.50p +2.62%Hansen Transmissions International NV (DI) (HSN) 52.15p +2.46%London Stock Exchange Group (LSE) 929.50p +2.42%FTSE 250 - FallersOcado Group (OCDO) 244.60p -14.18%F&C Asset Management (FCAM) 86.35p -3.03%Supergroup (SGP) 1,766.00p -2.97%Brown (N.) Group (BWNG) 272.30p -2.72%Imagination Technologies Group (IMG) 349.70p -2.59%Exillon Energy (EXI) 343.70p -2.36%Kesa Electricals (KESA) 132.60p -2.14%Cable & Wireless Communications (CWC) 46.42p -2.03%AZ Electronic Materials SA (WI) (AZEM) 311.00p -2.02%Dixons Retail (DXNS) 21.85p -1.80%