WPP, the Clownfish

Here is a company that had a very difficult 2025.

Revenue declined in every single quarter of the year, and each quarter was worse than the last. The full year ended down 5.5%. Its chief executive departed mid-year, less than eighteen months into the role. A new leadership team arrived in the autumn carrying a turnaround plan, a new name for the strategy, and considerable pressure to demonstrate that the diagnosis was correct. By Q4, the company was posting its worst performance since the height of the pandemic, down 11.3% in the period, while its two largest direct competitors both grew.

Sound familiar? No, it's not WPP.

That is Wendy's. The account expansion win that WPP just announced with considerable fanfare, LinkedIn posts about the data architecture, and the kind of celebratory energy that suggests this win matters more than most.

And WPP's numbers? Revenue less pass-through costs declined in every quarter of 2025, each worse than the one before. Full year: down 5.4% like-for-like. The group's chief executive stepped down mid-year. A new leader arrived in September with a restructuring plan, a renewed focus on data and AI, and the explicit acknowledgement that recent performance had been, her word, "unacceptable."

Two companies. Near-identical trajectories. Full year revenue declines separated by one decimal place (5.4% and 5.5%) as though they were reading from the same script. Both under new leadership. Both in active turnaround. Both with more to prove than their press releases suggest.

The account win is a mutual bet between two companies that need each other to reverse the same pattern.

Wendy's is the third-largest burger chain in the United States, with $12.5 billion in annual systemwide sales. While not a marginal brand, it is a business in genuine distress, losing ground to McDonald's and Burger King in each of the last four quarters while both rivals grew. Project Fresh, Wendy's turnaround programme, launched in late 2025. It includes closing up to 350 underperforming US restaurants.

The one genuine bright spot in Wendy's numbers is digital. Digital sales grew 14.9% year-on-year in the most recent results, reaching 20.3% of total US revenue, an all-time high for the company. Every transaction through the app, every loyalty programme interaction, every delivery order is generating first-party purchase data at scale: who bought, what they bought, when, how often, at which location, through which channel. That data is the most valuable asset Wendy's has right now. It is also the asset that makes this deal strategically interesting.

For WPP, the stakes are of a different but comparable weight. Their data thesis: that data connectivity is more valuable than data ownership, that clients keeping control of their own first-party data while WPP provides the connective intelligence layer is the future of media, is intellectually coherent. It is also unbacked by a major publicly measurable case study that can be distinctively observed.

Until now.

WPP does not own a large first-party data asset. Compared to Publicis who invested $4.5 billion acquiring Epsilon in 2019 and has since built it into an identity layer reaching nearly four billion unique consumer profiles globally. Omnicom owns Acxiom. These are proprietary identity graphs with centralised stores of resolved consumer data that agencies can use to target on behalf of clients. The business model is: we own the data, you benefit from it as we enrich it together with yours.

WPP took a different path. The acquisition of InfoSum in April 2025 (for a reported $63m) was not the purchase of a data asset. It was the purchase of an architecture. InfoSum's clean-room technology operates on a principle called federated learning: data never moves. Instead of centralising consumer profiles into a proprietary graph, WPP built an infrastructure in which client data stays where it lives, and intelligence is generated across it without the underlying identities ever being shared, transferred, or absorbed. The client keeps the data. WPP connects the intelligence.

Wendy's looked for an agency that can activate intelligence on top of what it already owns, improve the targeting and measurement that converts digital engagement into same-store sales, and do all of this without asking for the keys. WPP's structural absence, or the thing that looks like a liability in most pitch rooms, is Wendy's structural requirement. The weakness and the requirement are precisely the same shape.

As we all learned from either David Attenborough or from Finding Nemo, in the coral reef, there is a fish that lives inside the one thing that kills everything else in the water.

The clownfish is not named for what it does, but for its colours. The anemone's tentacles are lethal to virtually every other creature in its vicinity. The venom is fast and indiscriminate. Most fish treat the anemone as a hazard to be avoided. One species, the only one, treats it as home.

The clownfish is not stronger than the other fish. It is not faster. What it developed, over time, is a coating of mucus that chemically mimics the anemone's own surface. The anemone does not sting what smells like itself. So the clownfish moves in. The anemone gets a cleaner in a fish that removes parasites. The clownfish gets a fortress constructed entirely from what kills its competitors.

What it can do is remarkable. It found the one environment where its particular chemistry was not a disadvantage but a precondition for entry. The thing that keeps every other fish out is the thing that lets the clownfish in.

WPP does not have Publicis's data mountain and for some clients that absence matters. Those who want centralised identity resolution at scale, backed by four billion consumer profiles, are going to Publicis. The same week as the Wendy's announcement, Microsoft, one of the most data-sophisticated companies on earth, chose to expand their relationship with Publicis by appointing their $700m media account in a closed review with this as a key reason.

Here is why the industry should pay close attention to what happens next, regardless of which model you believe in.

The conditions for a fair test are close to ideal. Wendy's is a US-only account. The US is the most mature market for first-party data infrastructure, identity resolution, loyalty activation, and digital-to-physical performance measurement. If federated intelligence cannot drive business outcomes here, it cannot drive them anywhere. The data asset is real and growing. 20% digital sales penetration is substantial by QSR standards, and rising. The business problem is not marginal: same-store sales must return to growth, or the turnaround fails. The leadership on both sides has every reason to make it work and very little cover if it doesn't.

Most importantly: Wendy's reports quarterly. Same-store sales are a single, public, unambiguous number. The account transition began April 2026. The Q2 earnings release will be the first observable data point. By the time Wendy's reports Q3 and Q4, we will have a reasonably clear picture of whether Open Intelligence can convert first-party loyalty data into changed consumer behaviour at the till.

This is what a controlled experiment looks like in the holding company data wars. Not a case study written eighteen months later by the agency that won. An ongoing, publicly disclosed, quarterly-reported performance record for anyone to read.

For CMOs currently evaluating data strategy and agency partnerships, the questions worth holding are simple. Does federated intelligence, where client keeps the data and the agency connects the intelligence, drive the same quality of outcome as centralised identity at scale? Or does the absence of a proprietary data asset eventually show up as a performance ceiling? The next four quarters will not answer this definitively. But they will provide evidence that no amount of pitching or counter-pitching can match.

The clownfish does not survive in the anemone because it is lucky. It survives because it found the one environment where its chemistry was an asset rather than a liability.

But chemistry is the entry condition. Not the outcome.

Once the clownfish is in the anemone, it still has to work. Clean the parasites. Drive off the predators. Demonstrate that the arrangement justifies itself. The anemone is not sentimental. If the fish stops being useful, the relationship ends.

WPP has found its anemone. The fit is genuine. The mutual dependency is real. But the next four Wendy's earnings releases will do more to validate or challenge WPP's entire data strategy than any number of case studies, strategy updates, or LinkedIn posts about architecture.

The industry is watching.

Brandflow is written by Justin Billingsley, who has spent his career on all three sides of the industry's table: senior client, global agency leader, technology founder. First published 8 April 2026 in the Brandflow newsletter on LinkedIn.