* Euro surges, lack of surprise in Basel III, China data help
* Aussie at 4-mth high,kiwi 1-mth peak as China data supports
By Charlotte Cooper
TOKYO, Sept 13 (Reuters) - The euro surged on Monday as positive market sentiment following upbeat Chinese data and a lack of surprises from new banking rules tripped automatic buy orders and sent it 1 percent higher against the dollar.
The upbeat economic numbers out of China also propelled the Australian dollar to its highest in four months against the greenback as share markets around Asia rose on positive risk sentiment and the low-yielding yen retreated.
Automatic buy orders triggered at around $1.2720/30 and $1.2750/70 helped extend the euro's rally, with talk of buying by a commodity trading adviser early on also said to have helped the rise. It peaked at $1.2809 <EUR=> before retreating to $1.2800.
Analysts said the positive sentiment for the euro could last for a while but they wanted to see how European financial shares and credit markets responded.
"The introduction of the new Basel rules is years away, so the market's focus will soon shift back to more immediate factors such as euro zone debt auctions and suspicions on the EU stress test," said Keiji Matsumoto, a strategist at Nikko Cordial Securities.
The euro has been in a broad downtrend against the dollar this year on concerns about sovereign debt and the European banking system. It corrected from a four-year low below $1.19 set in June and is now holding above its 100-day moving average of $1.2652, which has tended to act as a trendline.
It now has resistance from its 55-day moving average at $1.2815 and has moved above the 20-day moving average in its Bollinger bands, giving scope to the upper band at $1.2915.
It gained 0.8 percent to 107.60 yen <EURJPY=R>.
New Basel rules agreed on Sunday will require banks to hold top-quality capital totalling 7 percent of their risk-bearing assets, which is up from 2 percent under current rules.
The regulations give banks longer than expected to comply and Germany won a key concession for its savings and cooperative banks -- both factors supporting markets. [
] [ ]RISK ON, YEN OFF
Data at the weekend showed Chinese factories ramped up production in August and money growth topped expectations, indicating the economy remained buoyant despite government efforts to clamp down on bank lending and property speculation.
While inflation rose to its fastest pace in 22 months, the rate of 3.5 percent was in line with expectations. Some rumours had circulated ahead of the weekend that China might tighten policy but the data generally painted a picture of an economy gliding in for a soft landing. [
]"There's a general risk-on move as relatively benign Chinese data over the weekend and a lack of policy tightening, which had been rumoured, are all encouraging risk," said John Horner, a foreign exchange strategist at Deutsche Bank in Sydney.
That helped the New Zealand dollar <NZD=D4> gain and sent the Australian dollar up as far as $0.9320 <AUD=D4>, its highest since late April, before it came back to stand 0.5 percent up on the day at $0.9305.
The Aussie now faces resistance from April highs of $0.9325 and $0.9389 and then its 2009 peak at $0.9407.
"If the Aussie breaks above its high since Lehman's collapse of around $0.94 that could send a strong bullish signal on the currency," a Japanese bank trader said.
It also gained to 78.51 yen <AUDJPY=R>, its highest for a month and above its 100-day moving average at 78.00 yen.
The yen was on the back foot across the board with the dollar holding off a recent 15-year low of 83.34 yen to stand at 84.12 yen <JPY=> on Monday, following a rise in U.S. Treasury yields.
Data from the Commodity Futures Trading Commission showed currency speculators slightly raised their net long yen position in the week ending Sept. 7, just before the yen's latest 15-year high. They also raised their net long position in the Australian dollar. See [
] <^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ PDF presentation on the yen: http://r.reuters.com/mam52p PDF on Japan leadership vote: http://r.reuters.com/vyk92p ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^>Japan's ruling party holds a leadership election on Tuesday in which Prime Minister Naoto Kan is being challenged by powerbroker Ichiro Ozawa in what is expected to be a close vote.
One trader said political risk was weighing on the yen, and a Reuters poll shows financial markets expect that a win by Ozawa, who has said Japan should intervene to curb yen gains, would put downward pressure on the yen in the short term. [
]Tohru Sasaki, chief FX strategist Japan at JP Morgan Chase, said some investors expected yen selling intervention after or even before Tuesday's vote.
"My main scenario is no intervention, but the market may try to speculate on that possibility, and in the next few days the yen may be under downward pressure," Sasaki said. (Additional reporting by FX analyst Rick Lloyd in Singapore and Hideyuki Sano in Tokyo; Editing by Michael Watson)