Kylian Mbappé signed with On Running this week, ending a 15-year relationship with Nike and taking an undisclosed equity position in the Zurich-listed sportswear company. The deal, announced Tuesday without financial terms, marks the highest-profile defection from Nike's football stable since Mbappé's France teammate Paul Pogba left for Adidas in 2016. Unlike that move, this one isn't about cash guarantees. It's about balance sheets.
On Running, which went public on the New York Stock Exchange in September 2021 at a $6.6 billion valuation, has built its athlete roster around equity participation rather than traditional endorsement contracts. Mbappé joins Zendaya, FKA Twigs, and a handful of endurance athletes in a structure that trades upfront fees for ownership points. The company's share price closed Wednesday at $51.82, up 3.1% on the news, giving it a market cap near $16.2 billion. Mbappé's stake size remains undisclosed, but On's existing athlete partners typically hold between 0.05% and 0.2% depending on their leverage and the year they signed. At current valuation, even the low end means an eight-figure paper position if Mbappé negotiated similar terms.
The endorsement architecture here is different. Nike's model—$40 million annual fees for a Mbappé, $20 million for a lesser star, product royalties on signature lines—assumes the athlete sells shoes. On's model assumes the athlete *is* the shoe, or at least the brand's credibility in categories it doesn't yet own. On has no football business. It has running shoes, tennis shoes, and a nascent apparel line. Mbappé's role isn't to move existing product; it's to legitimize the company's expansion into lifestyle and performance categories where Roger Federer, another On equity holder since 2019, opened the door. Federer's involvement preceded the IPO and his stake, estimated between 3% and 5% at the time, would now be worth north of $500 million on paper. That's the comp Mbappé's camp is eyeing.
Nike's loss here isn't about one athlete. It's about the return profile for the next generation. Mbappé, 26, has already earned an estimated $150 million in career endorsements, the majority from Nike. His new Real Madrid contract pays a reported €26 million net annually. At that income level, another $30 million annual endorsement fee doesn't move the wealth curve. A 1% stake in a company that could double its market cap in five years does. On Running's revenue grew 47% year-over-year in Q3 2024 to CHF 637 million. It's still a fraction of Nike's $51 billion annual revenue, but the growth rate and margin profile—gross margins above 60%—make it a different bet than incumbents grinding out low-single-digit growth. Mbappé's advisors, including his mother Fayza Lamari who manages his commercial deals, have been vocal about preferring equity to cash since at least 2022 when Mbappé turned down a reported €300 million extension offer from Paris Saint-Germain in favor of the Real Madrid move. The logic was optionality: Madrid's brand unlocks more commercial verticals than PSG's. On Running is the same calculation.
Nike retains Cristiano Ronaldo, Erling Haaland, and Vinícius Júnior in football, and its endorsement budget remains the largest in sports at an estimated $3.8 billion annually. But the Mbappé defection follows a pattern. In basketball, Ja Morant signed with Powerade over Gatorade for equity and creative control. In American football, Patrick Mahomes took a stake in BioSteel before its collapse, then moved capital into Whoop. The athletes with generational wealth are treating endorsements like venture allocations, and brands without equity to offer are losing access. On Running's model works because it went public early and can issue shares without tanking its price. Private brands—Sporty & Rich, Madhappy, Aimé Leon Dore—are trying the same playbook but can't offer liquidity. Nike, already public and too large to give meaningful equity stakes, is stuck offering cash in a market where cash is the floor, not the ceiling.
What to watch: On Running's first Mbappé-fronted campaign is expected in Q2 2025, likely timed to the product launch that justifies his involvement. The company has hinted at a football cleat line since Federer's tennis shoe collaboration proved the crossover model works. If On announces a Paris or Madrid retail flagship in the next six months, that's the brand using Mbappé's halo to enter new geos. Also worth tracking: whether Nike re-signs Haaland when his contract expires in 2026, and what currency they use.
On Running's IPO prospectus listed "athlete partnerships" as a competitive moat. Mbappé just tested whether that moat is wide enough to hold someone Nike spent 15 years building.
The takeaway
Mbappé's On Running equity stake proves top-tier athletes now prefer ownership to fees; Nike's endorsement model faces structural re-pricing.
Editorial & Disclosure Notice: This article was written with artificial intelligence from public sources and is published without individual human review. Artificial intelligence and other digital tools are also used for research, analysis, editing, formatting, and production. Errors, omissions, outdated information, or inaccuracies may occur. References to companies, brands, products, services, organizations, or individuals are for informational and editorial purposes and do not imply endorsement, sponsorship, affiliation, partnership, or approval unless expressly stated. All trademarks and other intellectual property remain the property of their respective owners. Opinions, analysis, estimates, and commentary are informational only and should not be construed as financial, investment, legal, tax, medical, procurement, or other professional advice. Information may be corrected, clarified, or updated after publication. Corrections or removal requests: jenny@pops4.com.
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