https://blog.wongcw.com/2022/09/21/%e4%bf%9d%e6%99%82%e6%8d%b7ipo%e8%aa%8d%e8%b3%bc%e9%9c%80%e6%b1%82%e5%bc%b7%e5%8b%81%ef%bc%8c%e8%b6%85%e9%81%8e%e7%99%bc%e8%a1%8c%e7%b8%bd%e9%a1%8d/