By Peter Starck
FRANKFURT, May 26 (Reuters) - Fears of more asset writedowns at Swiss bank UBS <UBSN.VX> weighed on Europe's stock markets on Monday, leaving Switzerland's benchmark SMI index <
> in the red, while German and French stocks eked out minor gains.Volumes were thin due to holidays in the United States and Britain.
"It's very, very slow. Nothing exciting today," a Frankfurt-based trader said.
The FTSEurofirst 300 <
> index of top European shares ended 0.2 percent lower at 1,319.55 points, having fallen 3.2 percent last week.UBS lost 5.8 percent to hit its lowest close since March 31 after saying in the prospectus for its upcoming $15-billion rights issue that it may suffer additional losses from its exposure to U.S. residential mortgages.
"The shares are really in the headwind: the whole subprime issue, the capital hike ... This could become very expensive for the bank," one trader said.
UBS, Europe's largest subprime casualty so far with $37 billion in U.S. subprime-related asset writedowns, will trade ex-rights on Tuesday and some traders saw that as another factor behind Monday's slide in the stock.
Zurich's SMI fell 1.3 percent, pulled down also by a 1.8 percent drop in the shares of UBS rival Credit Suisse <CSGN.VX>, while Frankfurt's DAX <
> and Paris's CAC 40 < > edged up 0.1 percent each.
GAS LEADER
French utility Suez <LYOE.PA>, up 1.5 percent, was among leading gainers after the company said it was looking to sell its Belgian natural gas trading arm Distrigas <DISTy.BR>.
Suez said on Saturday it had entered into exclusive talks with Italy's Eni <ENI.MI>, whose shares rose 0.1 percent to 26.42 euros. Distrigas's shares were suspended.
"The acquisition of Distrigas's assets should allow Eni to further strengthen its leading position in the European gas market," Banca Akros said in a note, reiterating its "buy" recommendation and price target of 33.70 euros for Eni.
The DJ Stoxx European utilities index <.SX6P> was the leading sectoral gainer with a rise of 0.7 percent.
Telecom operators such as France Telecom <FTE.PA> and Deutsche Telekom <DTEGn.DE>, up by 1.6 perecent and 0.9 percent respectively, were among safe-haven plays after the bout of profit-taking that saw Europe's top-300 index shed a total of 4 percent during Wednesday, Thursday and Friday last week.
The DJ EuroStoxx 50 index <
> of European blue-chip shares also fell 4 percent in the same period."One shouldn't expect anything more than at best a sideways move for the main indexes in the next few days," Commerzbank said in a note, referring to the DJ Eurostoxx 50, the U.S. Dow Jones industrial average <
> and Germany's DAX.Crude oil prices <CLc1> <LCOc1> held above $130 a barrel on Monday, keeping equities under pressure.
"The focus remains on oil prices, with concerns arising on how a number of sectors will cope with that. We've seen a sharp correction last week on airline stocks after company outlooks, citing high oil prices, disappointed the market," said Benoit De Broissia, analyst at Richelieu Finance, in Paris.
"The pressure from rising commodity prices is now so great that it reignites fears of second-round inflation, with wage hikes," he said. (Additional reporting by Blaise Robinson in Paris; Editing by David Cowell)