bBritish Vita 320p (up 41p, 14.7 per cent). Says it has rejected a bid approach on the grounds that it undervalued the company.
bHHG 65.75p (up 3.25p, 5.2 per cent). Hopes that the fund manager will be the next group in the sector to be taken over drive its shares higher.
bMersey Docks 998p (up 21.5p, 2.2 per cent). Peel Holdings, the group's biggest shareholder, says it is considering a counter-bid at 1,000p.
bCelltalk 39.5p (up 7p, 21.5 per cent). Boasts that trading at the group continues to improve.
bTepnel Life Sciences 6.25p (up 1p, 19.1 per cent). Unveils research collaboration in Germany.
bDawMed Systems 18p (up 2.5p, 16.1 per cent). Wins NHS deal.
bInnovation Group 38.75p (up 1.5p, 4.0 per cent). KBC Peel Hunt urges investors to buy into the company after solid first-quarter results.
nWhitehead Mann 62.5p (down 28.5p, 31.3 per cent). Issues a profits warning and says it is considering a move down to AIM.
nCarbo 8.25p (down 3.5p, 29.7 per cent). Warns that it is facing a cash crunch and says it is looking at various ways to raise extra funds.
nFerraris 93.5p (down 9.5p, 9.2 per cent). Warns that its full-year results will miss City forecasts.
nCorvus 9.75p (down 0.75p, 7.1 per cent). Unveils pounds 11.4m write-down on recent acquisition.
nVirgin Mobile 240p (down 6p, 2.5 per cent). JP Morgan downgrades its rating on the stock to "neutral" from "overweight" and sets a fair value target of 250p.
nRio Tinto 1,685p (down 18p, 1.1 per cent). Investors fear the group may be table a counter-bid for Australia's WMC.
nRamco Energy 42p (down 3.5p, 7.7 per cent). Profits-taking after recent gains.
nAvocet Mining 96p (down 3p, 3.0 per cent). Reports a fall in third- quarter gold production.