GLOBAL MARKETS-Shares push higher, bonds steady before Fed

* Fed expected to end QE after two-day meeting

* Wall Street points to higher open, Twitter (Xetra: A1W6XZ - news) 's wings clipped

* European, Asian shares up; Nikkei wilts despite data

* Dollar firmer after overnight weakness, bond yields flat

By Marc Jones

LONDON, Oct 28 (Reuters) - World stocks and U.S bond yields

extended almost three weeks of steady gains on Tuesday, as

markets prepared for the Federal Reserve to formally end six

years of aggressive, crisis-driven monetary stimulus.

The Fed kicks off a two-day meeting later with analysts

wagering that it will try to soothe the recent market volatility

by reinforcing that, while stimulus is being wound up, it could

wait quite a while before raising interest rates.

With the euro zone hobbled and China's giant economy

struggling to regain pace, the prospect of a world without the

crutch of U.S. stimulus has troubled markets, but they finally

seem to be getting used to the idea.

European shares rose for the fourth time in six

days, helped by better-than-expected results from pharmaceutical

group Novartis (Xetra: 904278 - news) and Swiss bank UBS (NYSEArca: FBGX - news) , as the

dollar, commodity markets and U.S. yields also nudged higher.

"In the last few days we have had a reality check," fund

management group Hermes' chief economist, Neil Williams, said.

"The world is certainly not a happy place at the moment but it

hasn't got that much worse in recent weeks.

"I'm expecting the Fed to re-assert its dovishness; they

haven't come this far -- including six years of QE (quantitative

easing) -- to end it abruptly and leap towards a rate hike."

Markets currently expect the Fed to make the first tentative

increase at the end of next year but with U.S. inflation

weak, Europe stumbling and the dollar on the rise, the big

question is to what extent it acknowledges risks to the U.S.

recovery.

Helping fill the wait for the Fed, markets have a heavy set

of economic data to digest including industrial production, home

prices and consumer confidence that will give the latest

temperature reading of the world's largest economy.

Wall Street futures pointed to early gains of 0.5-0.6

percent, though Twitter shares fell 13.1 percent in

premarket trading after it posted a slide in a closely-watched

measure of usage.

In tandem with rising stocks, gold recovered its

footing after falling to its lowest in nearly two weeks, while

emerging market stocks, which are also seen as

vulnerable to reduced stimulus, rose 0.7 percent as hopes of

more reforms of state-owned firms helped Chinese stocks

jump 2 percent.

CROWN SLIPS

As European banks continued to benefit from their weekend

stress-test results, London's FTSE, Germany's DAX

and France's CAC rose 0.5, 1.5 and 0.5 percent.

In the currency market, the dollar the dollar edged

lower after a surprise drop in U.S. durable goods orders and the

euro, the pound and benchmark German government

bonds traded little changed.

Sweden's crown though slid to a four-year low against the

dollar and a four-month trough against the euro after the

central bank, the Riksbank, surprised markets with a cut in

interest rates to zero.

Like many advanced economies, Sweden is fighting the threat

of deflation. Most analysts had forecast the bank would lower

rates to 0.1 percent from 0.25 percent, but it went a step

further and also forecast an even lower future rate path.

"Reading between the lines, it looks like the Riksbank will

keep rates low ... This will weigh on the Swedish crown, with

most losses likely to come against the dollar," SEB (Paris: FR0000121709 - news) 's chief

currency strategist in Stockholm, Carl Hammer, said.

Among commodities, U.S. crude was flat at $81.50 per

barrel after dropping as low as $79.44 on Monday, its lowest

level since June 2012, after Goldman Sachs (NYSE: GS-PB - news) cut price forecasts.

Brent crude added 0.2 percent to $86.03 as concerns

about weak global demand and ample supply receded and

growth-attuned metals -- copper, nickel and

aluminium -- continued their recent rebound.

But the firmer commodity prices did little for Russia's

rouble, which fell 0.7 percent to another record low against the

dollar despite interventions from the central bank and the

chance of further action when it meets on Friday.

(Editing by Louise Ireland/Ruth Pitchford)