China launched its most forceful crackdown on illicit cross-border stock trading on May 22, 2026, targeting capital outflows and imposing over US$330 million in fines on brokers operating without mainland licenses [1, 2, 3]. The China Securities Regulatory Commission fined Futu, UP Fintech Holding’s Tiger Brokers, and Longbridge Securities in the combined crackdown [1, 2, 3].

Following the announcement, Chinese investors rushed to sell overseas equities, causing the Nasdaq Golden Dragon China Index to fall 2.2% and Futu’s shares to plunge about 28% on the same day [1, 2, 3]. Futu’s billionaire founder, Leaf Li, saw his wealth decline by US$1.7 billion to US$4.7 billion [1, 2]. Richard Wang, an AI professional based in the US, sold his US stocks on May 22 and awaited the Hong Kong market’s reopening on May 26 to liquidate remaining holdings. Wang said, "China is concerned of more capital outflows so it’s shutting the cross-border trading channel and forcing the funds back to domestic markets. So I quit." [1, 2, 3]

The crackdown threatens liquidity and demand for IPOs in Hong Kong’s markets, where mainland Chinese investors play a significant role. Futu underwrote 30 IPOs in Hong Kong in 2026, more than any other bank [1, 2, 3]. CITIC Securities estimated the clampdown could affect roughly HK$250 billion (around S$40.7 to S$41 billion) in assets in Hong Kong, with Futu accounting for HK$150 billion to HK$180 billion of those assets [1, 2, 3].

Authorities have targeted schemes where investors circumvented a 2022 directive instructing brokers to stop onboarding new onshore investors and to rectify illegal cross-border trading by falsifying documents [1, 2, 3]. In 2025, an estimated US$1 trillion of "hot money" flowed out of China, the largest annual outflow recorded since Bloomberg Intelligence began tracking data in 2006 [1, 2, 3]. The crackdown is designed to stem such capital flight.

The Nasdaq Golden Dragon China Index and Chinese online broker stocks reflected the broader market impact of the crackdown on May 22. Investors are now closely watching Hong Kong’s stock market reopening on May 26 amid the fallout from China’s enforcement efforts [1, 2, 3].