Tokyo Metro has set a price range for an initial public at 1,100 to 1,200 yen per share, against an initial estimate of 1,100 yen, a regulatory filing showed on Monday.
At the top of the range, Tokyo Metro, one of two subway operators in Japan's capital, would raise 349 billion yen ($2.35 billion) in the largest IPO in Japan for six years.
The final IPO price for the subway operator, which is owned by the Tokyo and national governments, will be decided on Oct. 15 before a Tokyo Stock Exchange listing on October 23.
Elsewhere in Japanese IPOs, Rigaku, a maker of X-ray testing tools backed by buyout firm Carlyle Group CG.O, plans to list this month.
Bain Capital-backed chipmaker Kioxia has scrapped its plan for an IPO in October, Reuters reported last month.
Japan's stock market suffered a historic rout in early August, sparked by a surprise interest rate hike and fear of a U.S. recession, before regaining ground. The benchmark index .N225 is up around 18% so far this year.
Tokyo Metro's history dates back to 1920 with the establishment of the Tokyo Underground Railway Company.
Seven years later, it opened Japan's first subway line, between the Asakusa and Ueno districts of Tokyo.
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