Valeant Pharmaceuticals plunged as much as 42 per cent to the lowest since 2011 after cutting its sales forecast. Photograph: Christinne Muschi/Reuters

Global stocks dropped on Tuesday as the biggest two-day slide for commodity prices in a month reminded investors of the financial-market turmoil that (...)

In Dublin, Ryanair closed up 2.3 per cent, while while Paddy Power, which is preparing a merger with Betfair, was up 1.3 per cent after €240 million worth of its shares changed hands. Photograph:  Nick Ansell/PA Wire

European stokcks rallied on Friday, trimming their worst January drop since 2008. The Iseq rose more than 2 per cent while the FTSE climbed 2.4 per c(...)

 The German Bundestag lower house of parliament approved government plans to deploy up to 1,200 soldiers, Tornado reconnaissance jets, refueling aircraft and a frigate as part of the military campaign against Islamic State. Photograph: Fabian Bimmer/Reuters

Germany’s parliament has approved plans to provide military assistance in the fight against Islamic State militants, including reconnaissance jets and(...)

The company said it was currently pursuing a policy of geographic and sectoral diversification with resources being deployed on developing business in the UK and in the Caribbean, where Denis O’Brien’s telecoms firm Digicel has a large foothold

The Denis O’Brien-owned infrastructure and utility support services company Siteserv, which recently rebranded as Actavo, is forecasting turnover of a(...)

Engine trouble: Weaker than expected earnings reports in Europe included another profit warning from Rolls-Royce, which sent its shares skidding. Photograph: Romeo Gacad/AFP/Getty

MARK PAUL The Iseq beat its peers on yesterday with a marginal gain, as the top European stock index posted its biggest fall in six weeks due to wea(...)

Apple: results out on Tuesday. Photograph: Josh Edelson/AFP/Getty Images
For your diary

TODAY Results: TNT Express. Indicators: Irish retail sales (Sept); German IFO business climate (Oct); US Dallas Fed manufacturing index (Oct); US new (...)

Aer Lingus surprised observers to close up 7.7 per cent at €2.67

European shares suffered their worst monthly performance in four years yesterday, as concerns over a Chinese economic slowdown and a possible US inter(...)

Phelim Rooney: “They had no understanding of the expertise needed to do something in the sea”

Phelim Rooney specialises in pipes. Not the kitchen variety, but 400 metre-long jumbos pumping millions of euro worth of oil from the bottom of the se(...)

Burnt out: Ageing oil fields in the North Sea look very vulnerable and could face early closures and accelerated moves to decommission them

Shouting to be heard over an Arctic blast, Alistair Hope points out a dozen oil platforms, some nearby, their gas flares illuminating a heavy North S(...)

Ryanair put in another strong performance, on back of steady volumes, closing the day 29 cent or 3.3 per cent up at €9.96 following a sector-wide trend. Photograph: Robin Townsend/EPA

Stock markets around the world clung to modest gains on Thursday, with European equities retreating from seven-year highs, after Germany rejected a(...)