Global Markets: Shares stay on record run as metals skid

By Marc Jones

LONDON (Reuters) - Asia and Europe's big bourses kept world shares on their record-breaking run on Tuesday, although a steadier dollar halted the sizzling start to the year for the euro, yen and yuan and sent metals markets skidding.

Wall Street traders were ready for another set of highs having seen MSCI's world index notch its third consecutive all-time best following a sharp jump in Japan, where the heavyweight Nikkei hit its highest since 1991.

The pan-European STOXX 600 crawled up 0.3 percent as technology, car and insurance stocks offset a 1 percent drop in miners caused by buckling metals prices.

Copper slumped 2.2 percent, while nickel plunged almost 4 percent. For both it was their biggest drop since early December, after which they went on to surge 10 and 20 percent respectively.

Analysts put the wobble partly down to supply issues after stockpiles of iron ore at China's ports leapt to the highest since at least 2004, but also to the dollar -- used to price commodities -- pulling out of a four-day dive.

"Everything this year (in commodity markets) has been largely about the dollar," said Credit Agricole FX Strategist Manuel Oliveri.

"It has been selling off regardless of rate expectations, regardless of the growth outlook," he added, saying he expected the currency to start stabilising.

The steadier dollar also brought an end to the euro's four-day hot-streak though again there were other factors at play too.

The single currency was buffeted in early European trading by reports that parts of Germany's main opposition party were resistant to reforming a "grand coalition" with Angela Merkel's conservatives.

It then took another step back after sources at the European Central Bank told Reuters that despite growing talk it will stop its mass stimulus at the end of September, policymakers were unlikely to flag an end to the programme just yet.

The euro slipped all the way down to $1.2204 from Monday's three-year high of almost $1.23. The Japanese yen, which has also been on a strong run, was 0.15 percent lower at 110.6 per dollar.

Euro zone government bond yields switched direction too, with German Bunds coming off recent highs and low-rated Italian and Portuguese debt outperforming as investors returned to some of 2017's most profitable trades.

"We need more thorough analysis before making any change," one of the ECB sources said.

BITCOIN SLUMPS

Wall Street was set to keep global stocks rolling with futures markets pointing to 0.5 percent to 0.9 percent gains for the S&P 500, Dow and Nasdaq which had been closed for a public holiday on Monday.

Ahead of the bell, Citigroup's quarterly profit topped analyst expectations as its consumer businesses made up for lower trading revenues, though General Electric looked set for a tumble as it took $6.2 billion hit on its insurance portfolio.

Overnight moves in Asia included a 1 percent jump by Japan's Nikkei that saw it touch its highest since November 1991 and more gains for high-flying Chinese bourses.

Australian shares had stumbled 0.5 percent though as its heavyweight miners were bruised by the slide in metals prices.

"The yen's appreciation against the dollar has stopped and this brightened sentiment, along with expectations for robust company quarterly results," said Sumitomo Mitsui Asset Management's Masahiro Ichikawa about Tokyo's gains.

Japanese Finance Minister Taro Aso said on Tuesday that he did not see problems with the dollar weakening to around 110.80 yen, but that big swings in currencies would be problematic.

Crude oil prices were also softer after being driven to their highest levels since December 2014 this week by the dollar's weakness and signs that production cuts by OPEC and Russia are tightening supplies.

Brent crude futures were down 30 cents, or 0.4 percent, at $69.94 a barrel after touching a high of $70.37 a barrel on Monday. Gold also shuffled back to $1,334 an ounce, after hitting a near four-month peak.

The other eye-catching move was another battering for crytocurrencies which have had a torrid start to the year following spectacular gains in 2017.

Bitcoin tumbled 18 percent to almost $11,000, after reports that a ban on trading of cryptocurrencies in South Korea was still an option drove fears grew of a wider regulatory crackdown.

The slide triggered a massive selloff across the broader digital currency market, with biggest rival Ethereum down 23 percent on the day and the next-biggest, Ripple, plunging 33 percent.

"It's mainly been regulatory issues which are haunting the cryptocurrency, with news around South Korea's further crackdown on trading the driver today," said Think Markets chief strategist Naeem Aslam.

"But we maintain our stance. We do not think that the complete banning of cryptocurrencies is possible," he said.

(Reporting by Marc Jones; Additional reporting by Lisa Twaronite in Tokyo and Jemima Kelly in London; Editing by Jeremy Gaunt and John Stonestreet)