Energy groups come under pressure after weekend speculation that the government could force major suppliers to break-up in order to increase competition. But Centrica (CNA) and SSE (SSE) recover from early selling, down barely barely 1% a piece to 333.9p and £14.87 respectively.

Having fallen by more than 12% at the market open, the drop in Diploma's (DPLM) share price is pared back to a 7% decline to 707p following its currency-led profit warning. We take a look at the situation in this news analysis.

Oil services firm Kentz (KENZ) gains 6% to 777p after announcinga 17% increase in its order book to $4.1 billion alongside its 2013 results as we discuss in more depth here.

A profit warningsends call centre operator IBEX Global (IBEX:AIM) down 13% to 175.5p. We questioned the earnings forecasts in this article last October, saying the shares were so highly rated that they would be vulnerable to a sharp correction if it couldn't meet the earnings expectations.

Mr Kipling cakes maker Premier Foods (PFD) slumps 32.3% to 77p after 76.9 million new shares were admittedto the market as part of a big refinancing. It has raised £353 million in a deeply-discounted rights issue and £475 million through a bond issue to help pay down debt.

Egypt-based gold producer Centamin (CEY) rises 3.1% to 54.15p after full-year results hit analyst expectations. Stockbroker Numis calls it 'another solid result' from the miner, adding: 'We expect operations to continue to surprise to the upside and another decent year ahead, with a hopeful dividend on the cards. We maintain our view that this will be Centamin’s year, especially if legal issues/politics are resolved.'

Life sciences tool provider Horizon Discovery has raised £40 million of new money ahead of joining the stockmarket on Thursday (27 Mar). To be valued at £120.5 million cap upon listing, Horizon originally hoped to raise £25 million of new money. Existing shareholders are also selling £28.6 million worth of stock.

Closed life and pension fund consolidator Phoenix (PHNX) improves 4.8% to 721p on advanced talksto sell Ignis Asset Management to Standard Life (SL.). An update is expected on Wednesday (26 March).

Drug developer Allergy Therapeutics (AGY:AIM) falls 3.7% to 25.7p after gross profit dipped 11% to £20.7 million in the six months to January.

AIM-quoted unconventional oil and gas play Rose Petroleum (ROSE:AIM) gains 28% to 1.02p as the market continues to wake up to the implications of the group's acquisition(17 Mar) of shale assets in Utah.

Extendingthe contract to run London's mayoral and assembly elections pushes IT services microcap DRS Data & Research (DRS:AIM) 8% higher to 26.5p.

Driver monitoring kit designer Seeing Machines (SEE:AIM) climbs 3.6% higher to 7.12p after winning a new contractwith mining giant BHP Billiton (BLT). The FTSE 100 constituent will install Seeing Machines' driver fatigue and distraction monitoring systems across its Pilbara mine sites in Western Australia.

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Issue Date: 24 Mar 2014