Below are some of the main news-driven share price changes at 4.00pm.
RISERS
Edenville Energy (LON:EDL), up 50%. The mining licence for its Rukwa coal deposit in Tanzania has been granted.
Minoan (LON:MIN), up 39%. Reports in Greek travel media suggest that the four requisite signatories required for the Presidential Decree in respect of Minoan's Crete Project have now been delivered.
Ascent Resources (LON:AST), up 24%. The company said its IPPC permit application for the construction of a new processing facility to clean the gas from the Petišovci field is likely to be reviewed ahead of schedule.
FALLERS
ECR Minerals (LON:ECR), down 24%. Paul Johnson has reduced his stake from above 6% to a level where he is not required to disclose the size of his holding.
New World Resources (LON:NWR), down 19%. The company confessed it is likely to be cash flow negative for several years to come and as part of its strategic review it is contemplating closing some of its coal mines.
First Quantum (LON:FQM), down 11%. Fourth quarter results from the copper producer underwhelmed, with earnings per share slumping to 17 cents from 76 cents the year before.
Below are some of the main news-driven share price changes among FTSE 350 stocks at 12.30pm.
RISERS
Acacia Mining (LON:ACA), up 7.0%. Deutsche Bank has raised its target price from 290p to 300p.
Petrofac (LON:PFC), up 4.8%. The oil field support services firm's full-year results found the City in forgiving mood, as underlying earnings (EBITDA) slumped to $792mln in 2015 from $581mln in 2014, even excluding the nightmare Laggan-Tormore loss, on which it has made a big loss.
Interserve (LON:IRV), up 2.7%. The construction and urban regeneration specialist cheered the market with a 9% increase in headline pre-tax profit.
FALLERS
BHP Billiton (LON:BLT), down 8.3%. Most miners of industrial minerals are getting clobbered, and that includes BHP, even though Deutsche Bank has edged up its price target by 15p to 950p and the altogether more pessimistic JP Morgan Cazenove has upped its target by 50p to 600p.
Hays (LON:HAS), down 7.0%. The recruitment giant warned that the UK recruitment market is cooling.
Man Group (LON:EMG), down 6.6%. Profits tumbled as the hedge fund manager's performance fee profits tailed off in 2015.
Below are some of the main news-driven share price changes at 9.30am.
RISERS
Independent Resources (LON:IRG), up 133%. The shares more than doubled to 0.25p after the company issued 6mln shares at 0.6p, a premium of around 445% to Monday night's closing price.
LGO Energy (LON:LGO), up 47%. A non-binding term sheet has been signed with an institution for a US$20 million investment into the up-for-sale Trinidad-focused energy company.
eServGlobal (LON:ESG), up 30%. HomeSend, a joint venture between Mastercard, eServGlobal and BICS, has expanded its global framework agreement with Vodafone Group for M-Pesa, including the launch of remittance services into five new markets during 2016.
FALLERS
Grafenia (LON:GRA), down 25%. The print software and supplies group warned trading has not picked up and results this year will be well below market forecasts.
International Personal Finance (LON:IPF), down 13%. Chief commercial officer David Broadbent has been made redundant on the same day the board boasted of strong underlying growth in profit before tax (excluding one-off items).
Tristel (LON:TSTL), down 12%. Hygiene products specialist Tristel said its interim results were better than expected at the time of its 15 December annual general meeting, but evidently not as good as the market had been expecting.