Asian stocks, gold slide, bonds yields climb on stimulus end prospects

Asian shares and gold retreated on Wednesday and bond yields were near two-week highs after markets were rattled by a report flagging the possible withdrawal of global stimulus measures.

MSCI's broadest index of Asia-Pacific shares outside Japan .MIAPJ0000PUS slid 0.5 percent in early trading. Japan's Nikkei gained 0.1 percent, aided by a weaker yen.

Bloomberg reported on Tuesday that the European Central Bank (ECB) would probably wind down its 80 billion euro ($90 billion) monthly bond purchases gradually before ending its quantitative easing program, citing unnamed officials at euro zone countries' central banks.

ECB media officer Michael Steen later tweeted that the central bank's decision-making body has not discussed reducing the pace of its monthly bond buying.

Rates would remain low until inflation gets up to the ECB's target, its chief economist Peter Praet told bankers on Tuesday.

The yield on the benchmark 10-year U.S. Treasury notes US10YT=RR surged to a near two-week high of 1.6920. It was last at 1.6725 on Wednesday.

German 10-year government bonds DE10YT=RR also touched a two-week high of minus 0.043 percent on Tuesday before closing at minus 0.091 percent.

"International bond markets appear to be at a stage where nervousness about the prospect of central bank stimulus ultimately ending is outweighing the positive impacts of any near term moves to temporarily extend that stimulus," Ric Spooner, chief market analyst at CMC Markets in Sydney, wrote in a note. "This is reflected by bond yields rising and gold crashing."

Gold XAU= plunged 3.3 percent, its biggest tumble since January 2015. It was last up 0.2 percent at $1,270.80.

The euro dropped as much as 0.7 percent on Tuesday, and was last trading little changed at $1.12110.

Sterling remained near its 31-year low on concerns about Britain's exit from the European Union, following losses of almost 2 percent over the past two days after British Prime Minister Theresa May said on Tuesday the country's separation from the EU will not be "plain sailing."

The strength in the dollar, driven by growing expectations of a rate increase by the Federal Reserve this year, also weighed on other currencies.

Richmond Fed President Jeffrey Lacker argued that borrowing costs might need to rise significantly to keep inflation under control. Lacker, one of seven policymakers who currently do not have a vote but who participate in policy discussions, made clear on Tuesday he would have been in the camp gunning for higher rates.

Traders have priced in a 63 percent chance of the Fed raising rates in December, according to the CME Group's FedWatch tool.

The dollar index .DXY, which tracks the greenback against six major global peers, slipped 0.1 percent to 96.069 after advancing 0.5 percent on Tuesday.

The dollar gained 1.2 percent to 102.885 yen on Tuesday, its strongest level since Sept. 14. It was last trading down 0.1 percent at 102.78.

Crude oil defied the stronger dollar to surge after a report suggesting another weekly drop in U.S. crude inventories.

U.S. crude futures CLc1 rose 1 percent to a three-month high of $49.18. Brent crude LCOc1 gained 0.8 percent to $51.28. It hit a four-month high on Tuesday.