Hong Kong stocks rose by the most this month after JPMorgan Chase upgraded its recommendation on some of China's biggest technology companies.

Sentiment was also boosted by news that Shanghai, the mainland's financial capital, plans to reopen in phases starting next month.

The Hang Seng Index had climbed 3.3 per cent to 20,602.52 by the close on Tuesday, the highest level since May 5. The Hang Seng Tech Index surged 5.8 per cent, while China's Shanghai Composite Index added 0.7 per cent.

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An exodus of capital from the city lingered, pushing the Hong Kong dollar down to 7.85 against the US currency, the lowest end of its trading band, for a sixth consecutive day. A breach of that level would trigger an intervention by the Hong Kong Monetary Authority to protect the local currency's peg to the US dollar.

NetEase, JD.com and Alibaba Group Holding all rallied by more than 6 per cent to lead the gains after JPMorgan upgraded 17 Chinese tech companies trading in Hong Kong and the US, citing a return of some certainty to the sector amid a softening of Beijing's regulatory stance.

The rating change, issued on Monday, was a reversal of the US bank's bearish call in March that called China's tech sector "uninvestable." Bloomberg later reported that the word - which sparked a massive sell-off - had been published in error.

"Looking at the market in a one-year horizon, stocks have fully priced in the fallout of the pandemic and the geopolitical risk," said Lu Bin, chief investment officer at HSBC Jintrust Fund Management in Shanghai. "Opportunity overrides risks now."

China's top political advisory body held a special symposium on Tuesday to promote the digital economy, seen by traders as another sign that Beijing will ease off on its scrutiny of the tech industry.

Alibaba, the owner of this newspaper, rallied 7 per cent to HK$90.55 and Tencent gained 5.3 per cent to HK$368.40. Kuaishou Technology rose 5 per cent to HK$71.75 and NetEase added 6.4 per cent to HK$151.20.

JPMorgan lifted its recommendation on the four stocks to overweight from underweight, while raising the rating on JD.com, Baidu and Bilibili to neutral from underweight.

"Significant uncertainties facing the sector should begin to abate on the back of recent regulatory announcements," analysts led by Alex Yao wrote in the report on Monday.

Meanwhile, confidence returned as traders re-evaluated China's growth prospects after Shanghai said on Monday it will lift a two-month lockdown in phases starting on June 1 and aim to fully reopen the economy later in that month. The city of 25 million people reported no community infections for a third straight day in the past 24 hours.

SMO ClinPlus, which provides clinical research service, surged 59 per cent to 74.64 yuan on its first day of trading in Shenzhen.

This article originally appeared in the South China Morning Post (SCMP), the most authoritative voice reporting on China and Asia for more than a century. For more SCMP stories, please explore the SCMP app or visit the SCMP's Facebook and Twitter pages. Copyright © 2022 South China Morning Post Publishers Ltd. All rights reserved.

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