By Shinichi Saoshiro
TOKYO (Reuters) - An index of Asian shares reversed course and rose on Thursday as a slide in battered Chinese stocks was stemmed, at least temporarily, while the safe-haven yen was nudged off highs scaled against the dollar.
MSCI's broadest index of Asia-Pacific shares outside Japan, often held hostage to volatile Chinese stocks, was down 0.9 percent early in the day, but then was up 0.8 percent. During Wednesday, it touched a 17-month low.
At 0253 GMT, China's CSI300 index was up 1.6 percent and the Shanghai Composite Index had gained 0.6 percent. Both indexes started the day significantly lower.
The country's stock markets have plunged roughly 30 percent over the last three weeks, with a series of increasingly aggressive attempts by authorities so far having failed to stem the massive exodus from a once-booming market.
China's securities regulator took the drastic step late on Wednesday of ordering shareholders with stakes of more than 5 percent from selling shares for the next six months, in a bid to halt a plunge in stock prices.
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Also, Xinhua news agency reported that China's police will investigate potentially "malicious" short-selling of shares.
"Fundamentally, China is coming back to a point of attraction - the monstrous P/E ratios have come back to more realistic levels," Evan Lucas, market strategist at IG in Melbourne, wrote. "However, the bursting bubble means value is unlikely to factor into thinking in the interim. The repercussions haven't completely played out yet."
Japan's Nikkei trimmed earlier losses and was last down 0.7 percent as Chinese stocks reversed their fall. Hong Kong's Hang Seng soared 2.9 percent.
Australian shares lost 0.4 percent and South Korea's Kospi fell 0.7 percent.
U.S. shares slid sharply overnight on growing fears that nose-diving Chinese shares could destabilise the world's second- largest economy and have global implications.
Some commentators held a cool view towards the turbulent Chinese equities.
"Even if the sell-off in Chinese mainland equities continues for a while, we doubt it will have a major adverse effect on China's economy. Accordingly, we see little risk that it would trigger a rout of other emerging equity markets, either in the near future or further down the road," David Rees, economist at Capital Economics, wrote in a note.
The dollar gained 0.4 percent to 121.22 yen, putting distance between a seven-week low of 120.41 touched overnight when it suffered a bruising 1.5 percent fall against the safe-haven Japanese currency.
The dollar's overnight tumble against the yen helped the euro, which climbed to $1.1077 , pulling further away from a one-month trough of $1.0916 plumbed on Tuesday.
The Australian dollar, often used in proxy China trades, gained 0.5 percent to $0.7464.
Commodities, far from immune this week to the slide in global equities, also caught a breather. U.S. crude nudged up 0.9 percent to $52.13 but has still shed nearly nine percent so far this week.
Copper on the London Metal Exchange rose 1.1 percent to $5,578 a tonne after hitting a six-year trough of $5,240 a tonne on Wednesday.
(Editing by Kim Coghill and Richard Borsuk)