https://blog.wongcw.com/2021/02/03/robinhood%e7%b9%bc%e7%ba%8c%e6%8e%a8%e9%80%b2%e4%b8%8a%e5%b8%82%e8%a8%88%e5%8a%83%e5%b0%87%e8%80%83%e6%85%ae%e5%82%b3%e7%b5%b1ipo%e6%96%b9%e5%bc%8f%e6%88%96%e8%88%87spac%e5%90%88%e4%bd%b5%e6%96%b9/