Mainland Chinese investors purchased a record HK$37.2 billion worth of Hong Kong shares in a single session through the Stock Connect trading link, marking the largest daily inflow since the programme began linking mainland and Hong Kong markets.

The surge in buying reflects a rapid shift in investor sentiment and underscores the rising influence of mainland capital in the city’s financial markets.

The purchases were executed through the so-called southbound channel of Stock Connect, which allows investors in Shanghai and Shenzhen to trade shares listed in Hong Kong.

Data compiled from market transactions show the record inflow surpassed the previous high of HK$35.9 billion recorded in August, highlighting how quickly investor activity can swing between heavy selling and strong buying.

The latest inflow comes after mainland investors had staged a wave of selling in Hong Kong stocks just days earlier, demonstrating the volatility that often characterises cross-border trading flows.

Analysts say the reversal illustrates how investors in mainland markets frequently react swiftly to changing global conditions and domestic policy signals.

Despite broader market turbulence linked to geopolitical tensions and a global sell-off triggered by surging oil prices and concerns about conflict involving Iran, mainland buyers moved aggressively into Hong Kong equities.

Their activity helped cushion losses in the city’s market even as global stocks faced pressure.

Overall, mainland investors have already purchased about HK$188.7 billion worth of Hong Kong shares through Stock Connect since the start of the year.

That total amounts to roughly sixty percent of the volume recorded during the same period a year earlier, suggesting sustained demand for Hong Kong-listed companies despite periods of volatility.

Hong Kong’s market occupies a unique position as an international financial hub and gateway between China and global capital.

Through programmes such as Stock Connect, mainland investors can access companies listed in Hong Kong that may not be available through domestic exchanges, including many large technology and financial groups.

Policy signals from Beijing have also supported sentiment toward domestic markets and home-grown technology companies during the country’s annual legislative meetings, where leaders reaffirmed support for economic growth and innovation.

Market analysts say the record inflow illustrates how mainland investors are becoming an increasingly decisive force in Hong Kong trading activity.

Their growing participation has reshaped liquidity patterns in the city’s exchange and may continue to influence price movements as cross-border capital flows expand.

The episode also highlights the fast-moving nature of modern financial markets, where large inflows and outflows can occur within days as investors respond to economic signals, geopolitical developments and shifting expectations for global growth.