On and Mbappé: The Credibility Deal Nobody Knows the Price Of

On the night of 21 August, On Holding stock slipped 0.3%. No crash, no sell-off. Just a faint breath in a choppy session. But in this trade, I learned one thing: the market sometimes whispers louder than it shouts. The moment Reuters reported that the Swiss sportswear brand had announced a partnership with Kylian Mbappé, the reaction was not excitement but a quiet hesitation. On a morning in Barcelona, I sat reading the wire and asked myself: what keeps investors from leaping out of their chairs when one of the most famous footballers on the planet puts pen to paper? The answer lies elsewhere, not on the scoreboard. On is not Nike. That has to be said clearly before we get to Mbappé. On Holding AG is a Swiss running-shoe brand, founded in 2026 and listed in New York. It is the small shadow growing steadily in the running and tennis segments, not a football-boot empire. But in the three months to August, according to M Science data, On gained market share while Nike kept losing it. That is why the Mbappé deal is not a mere advertising story, but a strategic move in the global race for sportswear shelf space. One piece of history matters. In 2026, when Roger Federer left Nike for On, he received roughly 2.5% equity, according to Forbes. The new Mbappé agreement, as On confirms, also carries a cash-plus-equity component. The door opens from the groundskeeper, not the boardroom: this is not a plain endorsement deal, it is putting a superstar on the shareholder register. On is replaying the same playbook, only switching courts from tennis to football. But football differs from tennis in one big way. Data only shows the road travelled, while instinct points to the road ahead. Tennis is On's home turf, where it already has product standing. Football is away ground, where Nike and adidas have staked claims for decades, and where "performance credibility" is built with sweat on grass, not with a marketing budget. Now we get to the numbers. On trades at a price-to-earnings ratio of 18.7 times, per Reuters. That is "slightly above" sportswear rivals, not a gulf, but enough to say the market is pricing On for continued growth. When you are valued as a winner, you are obliged to keep winning. And here is the point I want you to note: On declined to disclose the value of the Mbappé deal. No figure. No contract length. No activation budget. No EBITDA impact. In the transfer trade, when someone hides the price, there is usually a reason to hide the price. Perhaps the figure is flattering and they don't want to set a precedent, perhaps it is unflattering and they want the market focused on the glamour rather than the invoice. The cash-plus-equity structure deserves dissection. It saves short-term cash flow, letting On hold cash for other investments. But the flip side is future share dilution and tying Mbappé to the share price. If On wins, both win. If On stumbles, Mbappé still gets paid and existing shareholders carry the rest. We have never seen a footballer function as an equity-linked capital investment at this scale. Federer proved it worked in tennis. But tennis is a straight track, football is a desert. Second point: the Americas region accounts for more than 50% of On's revenue and is itself flagged as declining in the report. That is the paradox of the deal. If On needs Mbappé to boost the US business, it is putting a football star on a field where football is not the number-one sport. Mbappé clearly has global pull, but the return on this deal depends on whether On's weakest region can lift. The data shows share gains over three months, but On's gains are in running, not football. Third, On also appointed Thierry Henry as director of its soccer business. That move impresses me more than Mbappé himself. A football legend in an executive role signals ambition to build institutional capability, not just to run a name-recognition campaign. Henry has a network and a football understanding that a standard marketing department does not. But stay sober: hiring a big name does not automatically create boot-development infrastructure, a youth-athlete scouting system, or club relationships. On the technology side, On has LightSpray, a robotic method for manufacturing shoe uppers, currently used in running. They envision moving it to football boots. It sounds plausible on paper. But football boots take loads utterly unlike running shoes: kicking force, traction on wet grass, a completely different biomechanics. LightSpray's transferability to football boots is unproven. This is a product claim, not a playing-style claim, and in the transfer trade we distinguish the two sharply. A final core point: the contrast between the commercial voice and the financial voice. On the commercial side, observers believe the deal builds On's credibility. On the financial side, Randy Konik of Jefferies and Swartz of Morningstar are sceptical. Konik put it bluntly, and I want you to carve it in stone: performance credibility cannot simply be bought. That is the only technically flavoured claim with real weight in this whole story. Now the part people usually skip. The report reads the 0.3% share dip as evidence investors are "not sold". I think that is over-reading an intraday move. A 0.3% swing sits firmly within normal noise. If you draw big conclusions from such a small number, you are reading tea leaves, not the market. Insiders whisper, outsiders hear a fist on the table. Investors did not uniformly turn away. They are simply holding their seats, waiting to see whether On can turn football into revenue. But there is a bigger blind spot both camps avoid: the Under Armour and Stephen Curry story. When Under Armour signed Curry, everyone thought it opened an era. The result was a stalled growth run and a brand groping in grey space. It is a named warning, retold by people, that one elite star does not guarantee success for an entire product category. Mbappé may sell glamour for six months. The real question is whether On's football boots get worn by professional players in big matches, and whether the contract obliges Mbappé to play in On boots. The report does not answer. I was wrong about Coutinho, and that mistake was worth more than ten correct calls: I will not declare "it is certainly done". So is this a bad bet? Not necessarily. It is a strategically logical but economically unproven wager. COVID froze the market, but do not forget that thawed water becomes a river: money and relationships kept flowing underground, and as the current shifts, On is trying to ride it. What I am watching is next quarter's report, when football-category revenue and any dilution effect appear. Until then, remember: this deal could be expensive, cheap, or fairly priced. Anyone telling you otherwise is selling you a belief with no invoice attached.