* MSCI world share index rises after 4 days of modest falls
* Germany leads struggling Europe, Japan, Hong Kong top Asia
* U.S.-China tentative agreement to trade truce - SCMP
* Market pares bets for half-point Fed rate cut in July
By Marc Jones
LONDON, June 27 (Reuters) - World shares and the dollar were left clinging to gains on Thursday amid conflicting reports on whether the United States and China will agree a truce on trade at a meeting of their leaders this weekend.
Risk appetite had risen after the South China Morning Post said Washington and Beijing were laying out an agreement that would help avert the next round of tariffs on an additional $300 billion of Chinese imports.
On Wednesday, U.S. President Donald Trump had said a trade deal with Chinese President Xi Jinping was possible this weekend, though he was prepared to impose tariffs on virtually all remaining Chinese imports if the talks fail.
The Wall Street Journal then cited Chinese officials as saying that Beijing was insisting on the removal of a ban on the sale of U.S. technology to Huawei as part of any rapprochement.
"But the truce cake seems to have been baked," the Morning Post quoted one of its sources as saying.
Hopes that the world's two biggest economies would finally reach an agreement remained just strong enough to raise MSCI's broadest index of world shares almost 0.2% after four days of losses.
Germany's trade-sensitive DAX had led an early advance by Europe with a 0.7% jump, then pulled back almost to flat again as data showed euro zone economic sentiment has fallen to its lowest point in nearly three years.
Wall Street futures were still higher despite more woes for planemaker Boeing. Asia finished strongly, with China's blue-chip index closing up 1% and Hong Kong's Hang Seng and Japan's Nikkei ending 1.4% and 1.2% higher.
"The market is focusing on the hope that there will be a trade truce," said ING's chief EMEA FX and rates strategist, Petr Krpata. "We still think, though, that it would be temporary and that things will get worse again over the summer before they get better."
The trade row has already rattled investors, who have ditched shares for the safety of bonds and gold this year. It has also prompted the U.S. Federal Reserve to shift 180 degrees from raising interest rates in December to now signalling a cut as soon as next month.
Many traders still expect the market to remain in a narrow range until after the G20 meeting, where Trump is also holding bilateral talks with other nations.
"Overall it seems more likely that tariffs are hiked than not, following the meeting, though the timing of this may be confused by a desire for positive optics," JPMorgan said in a note.
China's central bank on Thursday promised again more support for the economy if it's needed.
Trump, meanwhile, had weighed back into U.S. monetary policy, accusing Fed Chairman Jerome Powell on Wednesday of doing a "bad job" and "out to prove how tough he is" by not cutting interest rates.
Markets are convinced the Fed will indeed ease at its next meeting in July, but had to scale back bets on a half-point cut following cautious comments from various policy makers.
Futures are 100% priced for a cut of 25 basis points next month, and imply a 22% chance of 50 basis points.
The probability of a less aggressive Fed and expectations of a Sino-China trade truce helped nudge up bond yields and ease the selling pressure on the U.S. dollar, which hovered at 96.300 against a basket of currencies, up from a three-month low of 95.843.
The dollar gained against the yen to 108.13, after reaching a low of 106.77. The euro also eased to $1.13505 , down from $1.1412.
Gold broke a six-session winning stretch and slipped to $1,403.94 per ounce.
Oil prices ran into profit-taking, having gained overnight on a larger-than-expected drawdown in crude inventories as exports rose to a record high and refined-product inventories unexpectedly fell.
Brent crude futures fell 55 cents to $65.92. U.S. crude lost 47 cents to $58.91 a barrel.
Additional reporting by Wayne Cole and Swati Pandey in Sydney; editing by Angus MacSwan, Larry King