What stands out first is that On has already cleared the hardest hurdle for a premium consumer brand: it is no longer a “great growth, no earnings” story. Revenue has compounded from $897 million in 2021 to $3.73 billion in 2025, a 4.2x increase in four years, while gross margin held around 63% in 2025 versus roughly 59% in 2022 and 2023. More importantly, operating income went from a $174.7 million loss in 2021 to a $466.7 million profit in 2025, taking operating margin to 12.5%. Free cash flow of $354.8 million on $3.73 billion of revenue is a real 9.5% FCF margin, and with $1.26 billion of cash and no debt, this is an unusually clean balance sheet for a fast-growing footwear name. The market cap of $12.1 billion therefore buys a business at about 3.2x sales, but enterprise value is materially lower because of the cash pile; on the provided EV/revenue of 2.9x and EV/EBITDA of 17.3x, this is not a heroic multiple for a brand still growing around 30%.

The second thing I see is that the P/E is telling a harsher story than the operating business. The headline 47.9x TTM earnings looks expensive, but the annual rows show why that can mislead here: net income actually fell from $300.0 million in 2024 to $252.2 million in 2025 even as operating income surged from $262.0 million to $466.7 million. That divergence usually points below the operating line rather than deterioration in the core brand economics. I care more that operating profit grew 78% on 30% revenue growth, which is exactly what a scaling premium brand should do. If this company can simply hold gross margin near 62%-63% and take operating margin from 12.5% toward the mid-teens over the next few years, the current valuation will compress quickly without needing fantasy assumptions. Put differently: the market is paying up for quality, but not at a level that assumes everything goes right. For a debt-free brand with this growth, I’d usually expect a richer EV/sales than 2.9x.

The story the numbers tell is of a brand still early in monetizing its premium positioning rather than one already fully saturated. Revenue growth near 30% at almost $4 billion scale is rare in footwear, and maintaining 60%+ gross margins while doing it is rarer. A lot of consumer names can grow that fast only by sacrificing price or stuffing channels; here, the margin structure suggests the opposite. The cash generation also supports that this is not just accounting-led profitability. At $37.77, I think the stock is being judged too much on the seemingly high P/E and too little on the combination of balance-sheet strength, operating leverage, and brand pricing power. My base case is that a healthy premium athletic brand growing 20%+ with double-digit operating margins and net cash deserves closer to 4x sales than 3x, which would support a value in the mid-$40s even without a multiple expansion on earnings.

The strongest case against that view is straightforward: premium footwear brands often look best right before growth normalizes, and this stock is still priced for sustained excellence. The bear would point to the unexplained net income decline in 2025 despite much stronger operating profit, the still-modest net margin of 6.8%, and the fact that scaling from $3.7 billion to something like $8-10 billion without margin erosion is historically very hard in athletic wear. They would also note that 17.3x EV/EBITDA is not cheap if 30% growth is near peak, and that a 47.9x TTM P/E leaves little room for tariff pressure, wholesale mix shifts, or marketing spend stepping up as competition responds. I take those risks seriously, especially because premium brands can hit a distribution wall fast. But I weigh them less heavily because the current valuation is not in the “cult stock” zone: net cash lowers the true operating multiple, and the company has already shown enough operating leverage that a temporary earnings wobble below the line does not invalidate the broader scaling thesis.

What would change my mind is evidence that growth is being bought rather than earned. If revenue drops below roughly 20% growth while gross margin slips under 60% and operating margin stalls around 10%-11%, then the case for paying even 3x sales weakens a lot and I’d move toward fair value in the low $30s. Conversely, if the next year shows revenue above $4.4-$4.5 billion, operating income above $600 million, and net income reconnecting with operating progress, then the current price will look too low and the stock can justify a move into the mid-to-high $40s. For now, I think the market is underestimating how far a debt-free premium brand can compound once it has crossed into real profitability.