Hotel Guests Appeal Dismissal of Federal Price-Fixing Lawsuit Accusing Strip Casinos of Algorithmic Room Rate Collusion

LAS VEGAS, NV — A legal battle accusing major Las Vegas Strip casino operators of orchestrating an algorithmic price-fixing cartel to inflate room rates has been elevated to the federal appellate courts.

Hotel guests who filed the proposed class-action lawsuit filed a formal notice of appeal with the U.S. Court of Appeals for the Ninth Circuit, challenging a federal judge’s order dismissing their complaint. The appeal—spotlighted on the Las Vegas Review-Journal’s business desk—seeks to revive antitrust claims against Strip giants including MGM Resorts International, Caesars Entertainment, Wynn Resorts, Treasure Island, and revenue-management software developer Cendyn Group LLC.

+--------------------------------------------------------+
|       STRIP HOTEL ROOM ANTITRUST APPEAL DOSSIER        |
+--------------------------------------------------------+
|  - Appellate Court: U.S. Court of Appeals for the      |
|    Ninth Circuit (San Francisco, CA)                   |
|  - Originating Jurisdiction: U.S. District Court,      |
|    District of Nevada (Las Vegas)                      |
|  - Presiding District Judge: Chief Judge Miranda Du    |
|  - Key Defendants: MGM Resorts International, Caesars  |
|    Entertainment, Wynn Resorts, Treasure Island,       |
|    and Cendyn Group LLC (Rainmaker Hospitality)        |
|  - Primary Legal Statute: Section 1 of the Sherman     |
|    Antitrust Act (15 U.S.C. § 1 - Restraint of Trade)  |
|  - Central Allegation: Utilizing Shared Proprietary    |
|    Pricing Algorithms to Artificially Inflate Rates    |
|  - Lower Court Ruling: Dismissed with Prejudice for    |
|    Failing to Plausibly Allege a Tacit Agreement       |
|  - Plaintiffs' Core Appellate Argument: Algorithmic   |
|    Information Sharing Functions as a Modern Hub-and-  |
|    Spoke Conspiracy Without Express "Smoke-Filled Room"|
+--------------------------------------------------------+

The Algorithmic Hub-and-Spoke Claim

The litigation centers on the casino operators’ use of Cendyn’s pricing software—known as Rainmaker Guestrev and Grouprev—which analyzes non-public occupancy levels, real-time demand curves, competitor inventory, and historical booking velocity to recommend room rates across member properties.

In their appellate brief, plaintiffs argue that the resort operators engaged in a classic “hub-and-spoke” antitrust conspiracy, with Cendyn functioning as the central hub and the individual casino operators serving as the spokes.

The lawsuit alleges that by feeding proprietary, non-public pricing and booking data into a single algorithmic pricing engine, the casinos effectively coordinated to artificially suppress room supply and keep daily room rates inflated above competitive market baselines.

The plaintiffs assert that tourists and convention travelers visiting Las Vegas paid hundreds of millions of dollars in supracompetitive hotel charges that would not have existed under traditional, independent market competition.

District Court Dismissal and the Legal Stakes

Chief U.S. District Judge Miranda Du dismissed the lawsuit with prejudice, concluding that the plaintiffs failed to meet the pleading threshold established under federal antitrust law.

In her dismissal order, Judge Du noted that the complaint did not demonstrate that the casino operators agreed among themselves to accept Cendyn’s algorithmic recommendations, pointing out that hotel properties retained discretion to override algorithmic suggestions and set independent rates.

Furthermore, the district court ruled that merely licensing the same commercial analytics software does not inherently constitute an unlawful agreement under the Sherman Act.

+--------------------------------------------------------+
|             THE APPELLATE BATTLEGROUND                 |
+--------------------------------------------------------+
|  • Plaintiffs' Position: Algorithms replace express    |
|    collusion; sharing data through a unified third     |
|    party creates illegal horizontal price alignment    |
|  • Resort Defense: Dynamic pricing tools analyze public|
|    market indicators; each operator independently sets |
|    and adjusts its own room rates and promotions       |
|  • Department of Justice Scrutiny: Federal antitrust   |
|    regulators filed statements of interest nationwide  |
|    challenging algorithmic pricing in residential rent |
+--------------------------------------------------------+

The Ninth Circuit appeal comes amid nationwide scrutiny of algorithmic price coordination.

The U.S. Department of Justice and the Federal Trade Commission have recently targeted similar third-party pricing software in the residential multifamily rental housing sector, arguing that delegating pricing decisions to a common algorithm can violate federal antitrust laws even in the absence of direct communications between competing executives.

If the Ninth Circuit overturns the dismissal, the case will return to federal court in Las Vegas for class certification and discovery, potentially unsealing internal pricing records across the valley’s largest gaming conglomerates.

Source: U.S. Court of Appeals for the Ninth Circuit Appellate Docket, U.S. District Court District of Nevada Filings (Case No. 2:23-cv-00140), Las Vegas Review-Journal Legal Desk, U.S. Department of Justice Antitrust Division Statements of Interest.