The “Price Assistant”: An Algorithm That Punished Hotels

Trip.com Group investigation · Part 2 of 10

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The Chinese antitrust regulator’s ruling against Trip.com Group describes not an abstract “abuse of dominance” but a concrete mechanism: exclusivity, a lowest-price requirement, and automation that rewrote hotel prices without their consent. We look at how it worked and what it means for partner trust in the platform.

What exactly the regulator described

On 25 July 2026, China’s State Administration for Market Regulation (SAMR) issued its ruling in the Trip.com Group case. The company, by the regulator’s own estimate, holds more than half of the online hotel booking market in mainland China. SAMR found violations of Articles 22(4) and 22(5) of the Anti-Monopoly Law, the provisions on abuse of a dominant position. The practices in question dated back to 2020.

There were two. The first was forced exclusivity for hotels holding “special brand” (特牌) status: as SAMR described it, such properties were required to work only with the platform or face “punitive measures” and restricted visibility. The second was a “lowest price on the internet” requirement: a hotel listed on several platforms had to keep its Trip.com price no higher than anywhere else.

Such contract terms are nothing new for the industry: European regulators spent years examining Booking.com’s price parity clauses and “preferred partner” programmes. What sets the Chinese case apart is how the terms were enforced. According to SAMR’s ruling, compliance was policed by technical means: hotels that broke the rules had their traffic throttled, were removed from recommended lists and had their security deposits deducted.

In other words, the penalty for a “wrong” price was applied not by a manager after negotiation but by a system, quickly, automatically and, judging by the case materials, with no real way to challenge the decision inside the platform.

The Jiangsu case: 480 → 130, nine times

The most widely discussed episode in the case spread across Weibo. A hotel owner in Jiangsu province set a holiday rate of 480 yuan per night. A platform tool called the “price assistant” (调价助手) changed it to 130 yuan. The owner switched the function off; the system switched it back on. This happened nine times.

The story matters not for its scale, since it concerns a single hotel, but for its clarity. It shows what SAMR’s finding that the company “can influence and even control hotel prices on the platform” meant in practice. The regulator also concluded that hotels had virtually no room to negotiate on commissions.

SAMR’s overall conclusion: the practices restricted competition, violated hotels’ pricing autonomy, harmed consumers and intensified “excessive competition” in the industry. That last phrase deserves attention. The regulator sees harm not only in inflated prices but also in forced underpricing, in what People’s Daily, calling the case a milestone, later described as price wars of attrition between platforms.

What remains outside the public record: how exactly the algorithm determined the “right” price, what data it used and whether hotels were notified of each change. We put these questions to the company.

The cost of participation: commissions and dependence

The economics of the conflict are clear from the numbers. Hotel commissions on the platform run at 12–20%. According to 163.com, they rose from 8–10% to 12–18%, and for some guesthouses the total cost of working with the platform reaches around 40%.

With a market share above 50%, a hotelier has few alternatives. Analysts surveyed by SCMP point to an additional factor: weak consumer demand made hotels even more dependent on platforms. When guests are scarce, disconnecting from the main sales channel is a luxury few can afford.

This, in all likelihood, also explains why practices dating from 2020 only became the subject of public proceedings in 2025–2026. Hotels, in effect, stayed silent for years. The logic of that silence is simple: a public complaint against a platform controlling more than half of all bookings carried more risk for an individual property than hope of a result. How many properties were hit by deposit deductions and traffic throttling remains an open question: SAMR’s ruling orders 122 million yuan in deposits returned to hotels, but the number of recipients has not been disclosed in public materials.

It also matters that the regulator did not stop at contract terms but classified the technical infrastructure of enforcement itself, the ranking algorithms, automatic deductions and hiding of properties from search results, as an instrument of abuse. This broadens the conventional understanding of “platform power”: it is no longer only about what the agreement says, but about what the code does.

Who spoke first

The chronology shows that the national case was preceded by a series of regional signals, which matters when judging how “sudden” the blow really was.

August 2025: the market regulator of Guizhou province convened five travel platforms. September 2025: the Zhengzhou regulator summoned Trip.com over “unfair restrictions” on sellers. November 2025: the Yunnan Homestay Association publicly accused the platform of “unfair” exclusivity and unilateral commission increases. On 8 December 2025 the association announced it was collecting evidence for antitrust action.

In other words, in the six months before the national investigation the grievances travelled from regional meetings to organised evidence-gathering by an industry association. For a company with a market share above 50%, this was an open signal of accumulated partner discontent.

On 14 January 2026 SAMR announced its investigation. The market reacted sharply: Hong Kong shares fell as much as 21.7% intraday and closed 6.49% lower; American depositary shares lost 17.05%. More than $8 billion in market value was wiped out in a day. From January to July the stock fell more than 40%, against a 7% decline for the Hang Seng index.

The fact that the Guizhou and Zhengzhou signals came months before the investigation was announced later became an argument in a US shareholder lawsuit (filed 11 March 2026, withdrawn in late May). The plaintiffs alleged the company understated regulatory risk in its filings, describing it as hypothetical while regional regulators were already acting. The suit was withdrawn and its allegations remain unproven, but the timeline itself is public.

Switching off the algorithm — before the ruling

A notable detail: Trip.com switched off its automated AI hotel price adjustment tool before the ruling was issued. According to a Pandaily report of 8 March 2026, the company explained the move as an effort to stop price wars and return pricing autonomy to hotels; TechTimes dates the shutdown to 10 March.

This can be read two ways. As an admission of the problem: the company fixed the practice without waiting for an order. Or as an attempt to soften the outcome: the investigation had by then been running for two months. The company offered no public explanation of why the tool was not switched off earlier; that question was also sent to Trip.com.

For hotels, switching off the tool means a return to manual price management, that is, to the norm from which, by the regulator’s account, they had been excluded since 2020. For the market, it is a signal that the company is willing to sacrifice some automation to reduce regulatory pressure. How much this will shift the balance of power in commission negotiations is unclear: the company’s 19 measures contain no separate item on lowering commissions.

The 25 July ruling ordered the company to pay a total of 5.18 billion yuan: a fine of 3.52 billion (7.5% of 2025 revenue from operations in China), confiscation of 1.66 billion in income and the return of 122 million in hotel deposits. In dollar terms that is $720–770 million, the fourth-largest penalty imposed on a Chinese internet company after Alibaba (18.228 billion yuan, 2021), Didi (8.026 billion, 2022) and Ant Group (7.123 billion, 2023).

The market greeted the ruling with relief: on 27 July Hong Kong shares rose as much as 7.7% intraday, the biggest gain in a year. Morgan Stanley analyst Yang Liu noted that the outcome was in line with expectations and that the uncertainty had been removed.

What this means for partner trust

For hotels, the Trip.com case is a rare instance in which grievances about “platform power” received not just publicity but legal recognition. The regulator established that a seller’s pricing autonomy is a protected value, and that technical enforcement tools are not “product settings” but instruments of abuse.

For the company itself, the consequences cut both ways. On one hand, a fine of 7.5% of Chinese revenue is a painful but predictable outcome, and the market digested it within a day. On the other, reputational damage among partners is not measured by the share price. Hotels that endured years of deposit deductions and price “corrections” will get their money back, but whether trust will recover is an open question.

SCMP’s analysts regard the investigation as a relatively isolated case that could nonetheless lead to others. Liu Dingding in Global Times frames the trend more broadly: platform violations are increasingly being curbed by law. For investors, this means regulatory risk in China is not a boilerplate caveat in filings but a live factor that has already materialised.

There is an international dimension too. International business brings Trip.com Group around 40% of its revenue, and gross bookings on its overseas platform grew by roughly 60% in 2025. Hoteliers outside China, from Southeast Asia to Europe, now read the SAMR ruling as a description of what the platform is capable of when it holds a dominant share. Whether similar tools were applied in overseas markets does not follow from the case materials; it is another question left with the company.

For the industry as a whole, the case poses a question: where does legitimate marketplace optimisation end and coercion begin? SAMR’s answer: at the point where the partner loses the ability to say “no”.

Company position

Trip.com Group accepted the regulator’s ruling and announced 19 measures in five areas: ending exclusive agreements; dropping the lowest-price requirement; protecting sellers’ rights; protecting consumers, including service quality, personal data protection and “preventing the risks of price discrimination”; and strengthening compliance. CEO Jane Sun said on an investor call that the company is working to bring its practices in line with evolving industry standards. Earlier, in March 2026, the company explained the shutdown of its AI pricing tool as an effort to stop price wars and give hotels back control over their prices.

We sent Trip.com a request with questions about the mechanics of the “price assistant”, the number of hotels affected by deposit deductions and the timeline for implementing the announced measures. No reply had been received at the time of publication.

Sources

• China Daily — SAMR ruling in the Trip.com case
• PhocusWire — Trip.com Group fined in China
• The Standard — Trip.com remediation measures after 5.3 bln yuan fine
• LoyaltyLobby — Chinese regulator fined Trip.com $770m
• Sina — case materials
• SCMP — probe zeroes in on algorithms and prices
• Global Times — analyst commentary
• WiT — Trip.com under investigation
• TechTimes — pricing bot shutdown
• Newspim — market reaction
• 163.com — platform commissions
• Justia — De Wilde v. Trip.com shareholder suit docket

Disclosure: the author is a Trip.com customer who has spent more than $100,000 on the service and has an unresolved complaint with its priority support. That experience prompted this series; every claim in it is based on the documents and sources listed.