He Sai Technology rose to HK$230 per share in the Hong Kong dark market at one point.

Heisai Technology rose to HK$230 per share on the over-the-counter trading platform for securities on Monday and will be listed in Hong Kong on Tuesday. The company's stock was priced at HK$212.80 per share for its initial public offering in Hong Kong. According to the securities platform, the trading price for the stock dropped to HK$219 on Monday. Heisai Technology will start trading on Tuesday in Hong Kong.