Tokyo Metro raised over $2 billion earlier this month in an initial public offering, the biggest stock listing in Japan in six years. Tokyo Metro had been owned jointly by the Japanese national and Tokyo metropolitan governments.

Tokyo Metro Co.’s stock price soared as much as 47% in its trading debut on Wednesday after its initial public offering drew strong demand from investors. The shares rose as high as ¥1,768 and opened at ¥1,

Shares of Tokyo Metro rose in their trading debut after its initial public offering raised about $2.3 billion, the largest IPO in Japan in nearly six years.