The title began more than 11% above its IPO price, reaching a high of 45 dollars, according to Reuters data, before losing ground and return to its IPO price, 38 dollars.

The transaction enabled the world's first social network to raise $ 18.4 billion (14.4 billion euros) and to be valued at $ 104 billion, more than Hewlett-Packard and Starbucks combined. 

After a delay in its quotation that fueled the impatience of traders and commentators around the world, the title began in Facebook stock at 1530 GMT at 42.05 dollars.

The group's headquarters in Silicon Valley and the applause of his employees, the founder and CEO of Facebook Mark Zuckerberg, 28, rang the bell to mark the debut of Exchange community site for 900 million users.

Outside the offices of the company thronged reporters and photographers. Above their heads, even a helicopter had been sent by U.S. television on the occasion of the IPO, the largest history of American technology stocks.

"A jump of 15% to 20% is about as possible," thought Tim Loughran, a finance professor at the University of Notre Dame, Indiana, before the start of trading .

Some investors believe the stock could gain 30% or more, on Friday despite persistent questions about the actual ability of Facebook to generate sustainable profits.

After just one hour of trading, Pivotal Research Group already recommended to sell the security. 

"The market is currently valuing Facebook as an asset less risky than Google, which we believe is absolutely not the case," said Brian Wieser, one of the firm's analysts in a research note .

The average of analysts' estimates compiled by Morningstar predicts a closing price Friday of $ 50.

At 16:30 GMT, gained 9.53% to 41.62 dollars.

The head of Syriza, which will attempt to form a coalition government after the Conservatives came top of Sunday's parliamentary had renounced, advocated putting banks under the controlled the desired state and an international commission investigating the legality of government debt. 

"The bailout was clearly canceled by the popular verdict," said Tsipras, whose formation was propelled the rand against the odds of the second political force .

In Paris the CAC 40 was down 1.41% (-47.86 points) to 3,244.65 points at 10:50 GMT. In Frankfurt, the DAX yields 0.78% and London, the FTSE drops 0.35%. The pan-European index Stoxx 50 was down 1.19%.

The index futures point to a New York opening of Wall Street down.

In Europe, the sector suffers utilities Iberdrola clearances especially after the sale of a stake of 3.69% by ACS. The mining sector benefited from the publication by BHP Billiton of a quarterly activity report showing a drop in production of iron ore lower than feared by analysts. The sector index Stoxx Europe 600 commodity earns 0.87%.

Values, the British retailer Tesco, which has announced plans to spend one billion pounds (1.2 billion) to overhaul its operations in Britain to regain market share and reconnect with sales growth, gaining 0.4%.

The world number two home appliances Electrolux sells more than 4% in after announcing a 16.7% decline in shipments to the North-im Rican for its six major product categories.

ASML is the title back in the same proportions as the world leader in machinery engravings of semiconductors declined to disclose its prospects of orders on the occasion of the publication of its quarterly results .

In early trade, the Dow Jones gained 0.8% or 103 points to 12,822 points. The Standard & Poor's, wider, takes more than 1% or 14.10 points to 1372.81 points while the Nasdaq composite was ahead by 0.9% (26.61 points) to 3017, 80 points.

Alcoa wins over 7%. The group, considered a good barometer of the U.S. industrial sector, has emerged, to everyone's surprise, a positive net income in first quarter 2012, the for improved market conditions.

"We need to cut unnecessary costs, streamline the sectors that do not work well, because if we do not, we can not guarantee the viability of the system," said Minister of Economy, Luis de Guindos, invited the SER radio.

The government of Mariano Rajoy last week presented a draft budget for 2012 includes € 27 billion reduction in public spending as part of a reorganization plan intended to bring the public deficit to 5.3% of GDP against 8.5% last year.

Expected savings on health and education in addition to this effort. 

The Spanish health system, shared between central government and executives of the 17 autonomous regions, is a debt of 15 billion euros.

According to Luis de Guindos, one of the lines of inquiry could focus on free public health services offered to the Spaniards, whatever their income.

"We need to open the debate, both within the central government in the regions, on whether health should be free for someone earning 100,000 euros (per year)", said the minister. 

In terms of education, Spanish media report that the government would consider a lower number of teachers, that would offset an increase in the number of students per class , and higher tuition fees in universities.

The Popular Party (PP) Mariano Rajoy, who has an absolute majority in Parliament, also controls eleven of the 17 autonomous regions.

The German state, through the state development bank KfW, would take over the holdings of automaker Daimler and several private banks, the source said, confirming a report in the German press.

"The draft supplementary budget foresees 1.6 billion euros for this purpose," the source said.

Germany had already indicated that it would buy 7.5% of EADS Daimler. The additional 4.5% will be purchased from the banking consortium Dedalus.

Around 10 am at the Paris Bourse, EADS gained 1.29% to 30.63 euros.

EADS is currently controlled by a partnership between Daimler, the French Lagardère and the French state.

The approach of Germany could weigh in the debate between Berlin EADS on the location of production sites, while the group has already warned Germany against any attempt to engineer ; reference.

The CEO of EADS Louis Welsh defended the project in early March of his designated successor Thomas Enders to domicile a greater number of group activities in Toulouse, where the headquarters of Airbus, attracting criticism from Berlin. 

A spokesman for the German Economy Ministry had refused Thursday to comment on the information on the purchase of greater participation by the state revealed by the Financial Times Deutschland, while a representative of EADS also refused to do so.

For the past year, Exonhit reduced its loss to 7.1 million euros, against a loss of 7.7 million in 2010, and indicated that on 31 December 2011, his strated ; Flow was $ 12.9 million, giving it about 24 months of cash.

She also announced today have repaid all its long-term debt.

Turnover dropped to 5 million euros last year, against 8.4 million a year earlier. 

The company claims to have achieved savings in 2011 of two million euros in a full year after abandoning a planned acquisition and cut expenses on clinical Aclarus DX, the blood test of Alzheimer's disease.

Present equally in the market for drugs for neurodegenerative diseases and the diagnosis, Exonhit gives no numerical targets for 2012 merely say "more than ever" confident in achieving its prospects.

"The year 2012 will Exonhit to that of expanding our portfolio of diagnostic products, its own or in collaboration, while maintaining a solid financial structure," said the pre Chairman of the Executive Loïc Maurel, said in the statement of results. 

At 11:10, the action Exonhit lost 9.36% to 1.84 euros in large volumes, showing a market capitalization of 62.78 million euros. At this price level, the title was up 73.6% since the beginning of the year, after a loss of 48.29% last year.

At Bryan Garnier, Sebastien Malafosse the analyst points out that the market "expects a start-up Exonhit as it invests in its future development rather than focus on reducing of its cost structure ".

The views of the steps taken in 2011, he continues, "the road is still long for Exonhit and maturity of 24 months of cash could happen quickly."

With other analysts, however, it notes that the action has Exonhit, like those of other biotechs, gained much ground in recent sessions, so the decline of this morning can also be explained by profit taking.

The German central bank considered it prudent to increase reserves while increasing concerns about the bill that the issuing institutions in the euro zone will have to pay under rescue the European banking system.

The ECB has helped to avoid a credit crunch by injecting in the space of two months 1,000 billion euros in the area banks, through loans and rates 3 years reduced, and by relaxing its criteria for acceptance of collateral. 

The chairman of the Buba Jens Weidmann said he was concerned about the risks to the balance sheet of the ECB and national central banks of the Eurosystem, arguing that risk-taking should be lowered e, for instance by raising the quality of the collateral required for banks wishing to finance with the ECB.

But even if the Bundesbank's balance sheet reflects this concern, Jens Weidmann did not call for an immediate withdrawal of bank support.

"But that does not mean that all measures of crises must be lifted immediately, rather, it means that we, as a central bank, thinking against their abil re to organize the withdrawal of these measures."

One who is also a member of the Governing Council of the ECB played down his differences with the president of the institution in Frankfurt Mario Draghi in monetary policy. He stressed that he did not feel isolated within the council and had a good working relationship with the Italian

. "I do not feel isolated in the Governing Council of the ECB because I see that the arguments that I or others put forward are discussed "said Jens Weidmann at a press conference on the occasion of the presentation of annual results of the Buba

…. ….. He added that there was no predefined camps at voting time on the board. Last week, Mario Draghi also said that the Bundesbank was not isolated within the ECB.

The benefit of the Buba fell to 643 million euros in 2011, against 2.2 billion euros in 2010, due to an increase of 4.1 billion euros of provisions related to credit risk, foreign exchange, gold and other prices, against an increase of 1.6 billion euros the previous year.

"The main reason for the decrease in earnings is higher provisions for risk," said its president.

"The counterparty risk in repurchase program bonds and refinancing operations rose perceptibly due to higher volumes and the high degree of risk," added ; Jens Weidmann.

The unemployment rate in France rose by 0.1 points in the fourth quarter 2011 compared to the previous quarter to 9.4% of the workforce (9.8% overseas departments included), announced the INSEE Thursday. This rate, calculated according to the standards of the International Labour Office (ILO), was also up 0.1 points versus the fourth quarter of 2010, INSEE said.

In France, 2,678,000 people were unemployed on average in the fourth quarter. But in total, 3.4 million people were unemployed and wanted to still work, or not available for this within two weeks and looking for work or not. This is the third consecutive increase, after the unemployment rate in the third quarter (9.3%) and second quarter 2011 (9.1%).

Labour Minister Xavier Bertrand noted but noted that "France has fared better than its main partners to the global crisis" between the second quarter 2007 and third quarter of 2011, citing OECD data. Unemployment among 15-24 year olds, great concern of the government, rose by 0.8 point compared to the previous quarter and by 0.2 percent yoy. The youth unemployment rate rises from 21.6% to 22.4%, or about 626,000 people.

Involuntary part-time increases

The unemployment rate for seniors is improving slightly on the contrary, down 0.1 points from the previous quarter. It remains up (0.2 pt) to the last quarter of 2010. Some 485,000 people aged over 50 were looking for a job in the last quarter of 2011. The employment rate of older, more and more likely to stay in business with the successive reforms of pensions, continued to grow (a point on the previous quarter, 1.6 points over one year). The increase was pronounced for those aged 55-64 (1.4 pt in the quarter, 2.8 points over one year).

The employment rate in permanent contract (CDI) is stable in the fourth quarter of 2011, to 48.7% of the population aged 15-64. Rate for those employed in CDD / Acting rose slightly and stood at 6.8%. Partial unemployment, the government and social partners come to reform to facilitate its implementation, down 0.3 percentage points and stood at 0.2% of employed persons. Involuntary part-time increased slightly to 5% of people with jobs. Finally, the unemployment rate is declining in women (-0.1 pt the quarter, -0.3 pt yoy) as he progresses on the contrary men (0.4 pt the quarter , 0.6 pt yoy).

Nick Hayek regularly manifests its opposition to the strong Swiss franc, which penalizes exports Helvetic.

"We want as close as possible to the threshold of 8 billion francs," he told the Sunday newspaper.

"This will be possible if there is no economic or political disaster, and that exchange rates remain stable or improve."

In early January, Swatch Group announced a turnover of more than seven billion francs, after a double-digit growth in sales of watches and jewelry division.