Trip.com Group’s U.S.-listed ADS are moving lower as traders continue to discount regulatory and legal uncertainty tied to China’s antitrust investigation into the company. The probe remains a central overhang on valuation, and it has also helped fuel a wave of U.S. investor-alert/class-action activity that keeps headline risk elevated for the stock.

China’s market regulator opened an antitrust case into Trip.com in mid-January 2026, citing suspected monopolistic practices and abuse of market position. That regulatory cloud has since spilled into U.S. litigation, with class-action reminders alleging investors were not properly informed about the level of antitrust scrutiny, keeping sentiment fragile on down days.

Investors are also weighing potential incremental supply dynamics tied to Baidu’s exchangeable-bond structure referencing Trip.com’s Hong Kong–listed shares. Even when settlement mechanics are cash-first or contingent, the presence of a large exchangeable instrument can raise concerns about hedging activity and eventual stake reduction, amplifying pressure during risk-off sessions.