REFILE-Nikkei reverses course in volatile trade, rises on solid U.S. futures
(Adds missing word "said" in the 6th paragraph and corrects typographical error in the 9th paragraph)
* Falls present attractive buying opportunities - traders
* Nikkei lost 10 pct, or more than 2,000 points, in past 5 days
* More than half of Topix's 33 subsectors turn positive
By Ayai Tomisawa
TOKYO, Aug 25 (Reuters) - Japan's Nikkei share average changed course in extremely volatile trading and rose on Tuesday morning after solid U.S. stock futures eased concerns a global stock rout rooted in China worries would continue.
At the outset, after shares plunged in New York, the Nikkei touched a fresh six-month low. But losses were trimmed after U.S. stocks futures was up 2 percent during Asian trade.
The selloff in risk assets gathered pace, with U.S. stocks posting their worst day in four years and European shares hitting seven-month lows as concerns about faltering growth in China with the lack of any additional state intervention exacerbated the rout.
The Nikkei rose 1.1 percent to 18,744.90 at the midday break after falling to as low as 17,747.50 , the lowest level since mid-February. In the five sessions through Monday, the Nikkei dropped 10 percent, or more than 2,000 points. Continuación...