World stocks fell for a third straight day on Wednesday, depressed by growing nervousness surrounding central bank policy and the recent spike in world bond yields, although European bank shares rebounded after two major earnings reports.
Japanese stocks led the way, pushed down nearly 2 percent by the recent surge in Japanese government bond yields and the strength of the yen, overshadowing the slight rebound in European shares from Tuesday's three-week lows.
Shares in European banks HSBC and Societe Generale rose as much as 5 percent after reporting second quarter earnings, a glimmer of light for the region's financials amid the recent gloom.
But that failed to lift the broader European indexes and U.S. futures pointed to a softer open on Wall Street.
In bond markets, yields were little changed on the day, but still well up from recent lows following the shakeout in debt markets globally since the Bank of Japan's policy meeting last Friday and as eyes turn to the Bank of England on Thursday.
"Investors are slowly realizing that with every spin of the central bank policy chamber the magazine is getting emptier," said Michael Hewson, chief market analyst at CMC Markets in London.
"The larger concern here given recent market reaction to policy moves by central bankers is that policymakers are losing the confidence of investors," he said.
In early trade the index of Europe's leading 300 shares was down 0.3 percent at 1,316 points and Germany's DAX was down 0.4 percent at 10,104 points.
Banking shares rose 1.5 percent, lifted by SocGen and HSBC after their respective earnings reports. SocGen profits beat expectations and HSBC announced a $2.5 billion share buyback plan.
MSCI's global share index fell 0.5 percent for its third straight decline, a run not seen since early June. Japan's Nikkei fell 1.9 percent.
The sharpest moves lately have been in sovereign bond markets where a sudden spike in yields stirred speculation that a multi-year bull run in prices might finally be nearing its end.
While Japanese bonds steadied on Wednesday they have still suffered the worst sell-off in over three years as investors feared the BoJ was out of easing ammunition and might leave it to fiscal policy to stimulate the economy.
Tokyo on Tuesday approved 13.5 trillion yen ($132 billion) in fiscal measures and the IMF urged Japan to mix fiscal stimulus with labor market reforms.
Bond bulls were worried the Bank of England might also under-deliver at its policy meeting on Thursday, putting the onus on debt-funded government spending to support growth.
"I would vote for no change in rates or QE (quantitative easing," former BoE policymaker Charles Goodhart told Reuters, adding that the Bank has effectively run out of policy ammunition and that further stimulus would be ineffective.
"There's so much assumption that the Bank will cut rates that even though the effect of that will be minimal, they will do it, because not doing it would have an adverse effect on their credibility," he said.