Webull shares dropped sharply Wednesday after a U.S. congressional report raised national-security concerns about the trading platform’s connections to China. CNBC and Investing.com both reported the move, which put renewed attention on regulatory and geopolitical risks facing financial-technology firms with cross-border ownership or data relationships.

CNBC reported that a congressional committee said Webull was not the ordinary U.S. company it presents itself as, arguing that customer data could be exposed to Chinese surveillance risks. The report triggered an immediate market reaction, with CNBC saying the stock fell about 18%.

Investing.com also reported that Webull shares declined after the congressional report flagged China ties as a security risk. The concern centers not only on corporate structure but also on the treatment of sensitive financial and personal data belonging to U.S. customers.

The episode comes as U.S. policymakers continue to scrutinize technology and financial firms with significant links to China. Data access, cybersecurity, ownership structures and potential state influence have become central regulatory questions across industries ranging from social media to semiconductors and financial services.

For Webull, the near-term issue is whether the congressional findings lead to additional investigations, restrictions or changes in how the company handles U.S. customer data. The severity of any eventual regulatory response will determine whether Wednesday’s selloff proves to be primarily a sentiment shock or the start of a more persistent business challenge.

For the US 500 and broader fintech sector, the development is another reminder that geopolitical and data-governance risks can reprice companies quickly even when their core operating trends have not changed. Investors will watch for responses from Webull, regulators and other federal agencies.