By Hilary Russ
NEW YORK (Reuters) - European stocks scored consecutive daily gains for the first time in three weeks on Wednesday, drawing support from a weak euro, but U.S. and Canadian stocks drifted down as lower metal and oil prices weighed on the materials sector.
Emerging market stocks retreated 1 percent, led by political risk-driven losses in South Africa and Turkey, while broader sentiment was dented by a revival of U.S. rate rise expectations.
Markets are largely waiting for clues about the timing of the next U.S. interest rate in a speech from Federal Reserve Chair Janet Yellen on Friday at a meeting of global central bankers in Jackson Hole, Wyoming.
Futures markets assign a roughly one-in-five chance it will be in September, and 50-50 odds by the end of the year.
On a light day for data, investors' nerves may have been soothed by signs that the anticipated economic seizure in Britain - and beyond - from the shock vote in June to leave the European Union had not materialised.
"Brexit? What Brexit?" asked Holger Schmieding, chief economist at Berenberg Bank. "In the rest of the EU, the repercussions of the Brexit vote have been rather mild."
The FTSEuroFirst index of the leading 300 European shares closed up 0.3 percent, having earlier fallen as much as 0.4 percent, and Germany's DAX staged a similar rebound to trade up 0.5 percent before paring some gains.
Britain's FTSE 100 ended 0.48 percent lower, underperforming European peers, hurt by weakness in mining giant Glencore.
Sterling rose to a three-week high as speculators further cut bets against the currency after data indicated the economy was holding up after the Brexit vote.
The euro fell to a fresh one-week low against the U.S. dollar, last down 0.4 percent to $1.1257.
Materials were the biggest loser on the S&P 500 index, with the sector dropping 0.6 percent.
The Dow Jones industrial average fell 41.02 points, or 0.22 percent, to 18,506.28, the S&P 500 lost 4.56 points, or 0.21 percent, to 2,182.34 and the Nasdaq Composite dropped 9.16 points, or 0.17 percent, to 5,250.92.
Oil extended losses, with U.S. West Texas Intermediate (WTI) crude falling 3.2 percent to $46.56 per barrel, after an unexpected large build up in U.S. crude stockpiles renewed worries about oversupply.
Brent crude prices were down 2.22 percent at $48.85.
Slumping oil prices drove Canadian stocks lower. The Toronto Stock Exchange's S&P/TSX composite index was down 0.41 percent.
U.S. Treasury yields rose slightly after data showing existing home sales fell in July after four straight months of gains. The 10-year yield was last at 1.549 percent.
The long-dated yield curve had flattened to the lowest in one-and-a-half years on Tuesday. A flattening curve is often seen as a harbinger of low growth, inflation and rates.
(Reporting by Hilary Russ, Additional reporting by Jamie McGeever, Anirban Nag and Sujata Rao in London, Fergal Smith in Toronto, Barani Krishnan in New York and Lucia Mutikani in Washington; Editing by John Stonestreet and Nick Zieminski)
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