The opening of sales Wednesday of shares in Japan Post, whose origins date back to 1871, has been a decade in the making.
The initial public offering will make it the biggest IPO in the world this year — the biggest, in fact, since Alibaba Group Holding went public in September 2014.
Most share sales are aimed at individuals — part of Prime Minister Shinzo Abe's goal to get people to invest more of their savings.
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