Amid growing hype around OpenAI’s technology, investors have ploughed money into any company remotely linked to ChatGPT-like services. Shenzhen-listed Hanwang Technology, which develops “neuro-linguistic programming”, saw its stock price double in the last eight trading days. Shares of Hong Kong-listed Zhihu, a Quora-like question-and-answer platform, jumped 40 per cent on Wednesday based on speculation that its data might enable a service like ChatGPT.