The Antitrust Attorney Blog
Author: Luis Blanquez
A federal court recently handed antitrust plaintiffs something they have lacked for two decades: a monopolization theory against a dominant platform that survives a motion to dismiss. On March 30, 2026, the Eastern District of New York allowed Phhhoto’s monopoly maintenance claim against Meta to move into discovery. Most coverage filed it under routine platform conduct, but the court in this case built its ruling on a nascent competitor framework that private plaintiffs have almost never gotten past the pleadings since Trinko—and the reasoning reaches far beyond Meta. Phhhoto Inc. v. Meta Platforms Inc., No. 1:21-cv-06159 (E.D.N.Y. Mar. 30, 2026).
The Facts Behind the Ruling
Phhhoto launched its looping-photo app in July 2014 and reached 10 million users within two years. That growth depended on plugging into Instagram—Find Friends API access, hashtag integration, and organic sharing. In February 2015, a Meta strategic partnerships manager reached out about a Facebook newsfeed integration. Phhhoto signed a nondisclosure agreement and handed over operational detail.
Then suddenly the door closed. On March 31, 2015, with integration talks still open, Meta cut off the Find Friends API, partnered with GIPHY, launched Boomerang on the very day Phhhoto planned to announce its Android release, and in March 2016 rolled out an Instagram feed algorithm that—Phhhoto alleges—buried third-party content instead of personalizing the feed.
Why the Court Refused to Apply Trinko
Meta’s lead defense was Trinko, the US Supreme Court decision that protects a monopolist’s right to choose its business partners. Verizon Communications Inc. v. Law Offices of Curtis V. Trinko, LLP, 540 U.S. 398 (2004). The D.C. Circuit had already tossed a parallel state case on that exact basis. New York v. Meta Platforms, Inc., 66 F.4th 288 (D.C. Cir. 2023).
But Judge Matsumoto declined to follow that path. The states had attacked a general policy of cutting API access to potential rivals. Phhhoto attacked something narrower and uglier: Meta targeting one specific competitor after using an NDA to study how it worked. Meta took in confidential information during the NDA window, shut the API, and cloned the product. On those facts—the court reasoned—this is a nascent competitor case, not a refusal-to-deal case.
That line is the whole ball game because refusal to deal claims rarely clear Trinko. Nascent competitor claims are very much alive—central to the FTC’s case against Amazon, briefed in the Google Search litigation, and now applied at the pleading stage against Meta. Courting a rival, learning its business, and then locking it out is treated differently than simply turning a stranger away at the front door.
What the Nascent Competitor Theory Actually Targets
The theory addresses a gap that classic monopolization doctrine handles poorly. A dominant firm rarely fears the competitor it already faces. It fears the small, fast-growing one that could mature into a real threat. Buying that company outright draws merger scrutiny. So, the dominant firm uses alternative tools—pulling interoperability, timing a copycat product, or tuning an algorithm to suppress the upstart’s reach. Phhhoto pleaded all three, and each survived.
The Find Friends cutoff survived because Meta’s own statement—that it disliked how Phhhoto was growing through Instagram—pointed to an anticompetitive motive rather than a legitimate one. The Boomerang launch survived because Phhhoto alleged Meta learned the product through the integration process and then shipped a clone on the day of Phhhoto’s biggest announcement. And the algorithmic suppression claim survived because Phhhoto alleged the 2016 feed was tuned to cut rival visibility, with registrations falling sharply once it went live.
Market definition held up too. Meta leaned on Judge Boasberg’s 2025 FTC ruling, which found that Facebook, Instagram, TikTok, and YouTube shared nearly identical main features. The court refused to drop a 2026 finding onto a 2014–2017 market. Convergence today does not rewrite competition as it stood a decade ago.
What This Means
The nascent competitor doctrine works when three things are pled together: (1) a prospective innovation that disciplines incumbent stickiness; (2) an incumbent reaction that proves the threat; and (3) a default-integration mechanism that excludes the rival at the time of user choice. Developers who think they may have been on the wrong side of that pattern should look at three categories of facts.
First, document the cultivation. Treat every integration discussion as a record. Thoroughly document who initiated contact, what the platform asked for, and what changed hands under the NDA’s outreach. The Phhhoto court treated similar Meta conduct as the deceptive inducement phase that pulled the case out of Trinko. Remember to save the email threads, the calendar invites, and every communication that described your product favorably before the incumbent started to compete with it.
Second, map the cloning. The relevant moment is rarely the incumbent’s product announcement. It is the gap between your last informational disclosure to them and their first internal staffing decision on its competing feature. Look for personnel reassignments adjacent to your product space and for internal team names that telegraph the project. The cleaner the chronology, the stronger the inference at the motion to dismiss stage.
Third, identify the default mechanism. A discoverability problem in an App Store is weaker than a system level handoff that suspends a running rival session. So, if the incumbent’s conduct involves terminating your active connection, suspending your session, or auto launching its own product on a hardware trigger that previously routed to you, that is the conduct to plead first.
One last practical tip. Do not concede the market and do not assume a formal choice layer defeats a foreclosure claim. Microsoft argued for years that rival browsers were technically available, but courts rejected it because formal availability is not functional parity at the moment a user invokes the product. Treat market definition as contested, not closed. The FTC ruling in the Meta case did not bar plaintiffs from drawing narrower markets keyed to a specific period or theory of harm—and the Phhhoto case is live proof.
Phhhoto is not merely a case about a defunct photo app. It is probably one of the most quietly impactful private antitrust wins against Big Tech in a decade. The next plaintiff will not have to reinvent the wheel. Just plead the conduct, preserve the record, and define the right product market. Phhhoto just made the nascent competitor theory a live weapon.
Image by Gerd Altmann from Pixabay