Priceline faces FTC action over Guest Reservations hotel ads: what Booking Holdings had already disclosed, and how the stock reacted

Booking Holdings shares dipped on Wednesday, October 7, 2026 after Reuters reported that the Federal Trade Commission is preparing to take action against Priceline over online hotel ads that look like a route to a hotel's own website but send travelers to Guest Reservations, a third-party booking site, where they are often charged more. One of Reuters' sources put the potential penalties at more than $500 million. The first report reached the MoveSurge news feed at 11:51:59 ET with Booking at $158.00; within the next minute the stock touched $155.44, a 1.62% drop, and it ended that minute at $157.44.

The fall did not last. Reuters said the shares slipped 1.4% after the report and were last down about 0.2%. A follow-up headline at 11:53:20 ET found Booking at $157.44, and fifteen minutes later it was at $157.24, 0.13% lower; our reaction reading ten minutes after that headline had it at $156.73, down 0.45%. Most of the story was already public: Booking had disclosed in its quarterly filing in August that FTC staff intended to recommend a complaint, and San Francisco had sued the Guest Reservations sites and Booking in July. What Wednesday's report added was a penalty figure and a sense that action was close.

What Booking had already told investors

In its report for the quarter to June 30, Booking said FTC staff told Priceline in July 2026 that they intended to recommend a complaint against Priceline and a business-to-business affiliate partner, alleging unfair or deceptive practices around disclosures, fees, customer support and billing. Priceline said it did not agree with the FTC's position and remained in discussions to resolve the matter, and the filing warned that the outcome could include commitments to change business practices, damages or penalties.

"Affiliate" in that filing means a business partner, and Guest Reservations is not owned by Booking. San Francisco's City Attorney, in a lawsuit filed on July 29, 2026 against GuestReservations.com, BookOnline.com and Booking Holdings, described a Booking unit, Priceline Partner Solutions, as the supplier of the hotel inventory those sites sell, and alleged that travelers paid up to 85% more than booking directly. Reuters reported more than 1,000 Better Business Bureau complaints about Guest Reservations.

How large $500 million is for Booking

A penalty of that size would cost about a quarter of one quarter's profit, a one-time hit Booking can absorb. The larger exposure is the business model behind the complaint: if the FTC treats ads that resemble a hotel's own site as impersonation, every partner reselling Booking's hotel inventory under that kind of ad would have to change how it markets rooms. Reuters reported that the FTC is weighing whether the Guest Reservations sites break its rule against impersonating businesses, along with possible fee violations, and did not say whether the action would be a lawsuit or a settlement.

Timeline

1. July 2026: FTC staff tell Priceline they intend to recommend a complaint against it and a business partner.
2. July 29, 2026: San Francisco's City Attorney sues GuestReservations.com, BookOnline.com and Booking Holdings.
3. August 4, 2026: Booking reports second-quarter revenue of $7.35 billion and net income of $1.95 billion; its quarterly filing discloses the FTC matter.
4. October 7, 2026: Reuters reports the FTC is preparing action, with potential penalties above $500 million according to one source.