Top 10 European IPOs of 2025 by Valuation

The valuation set on IPO day reflects what underwriters and anchor investors agreed to accept at that specific moment — it's a starting price, not a verdict. The number that actually tells you whether an IPO "worked" is where the stock trades six to twelve months later relative to that offer price, since a large part of what looks like success on debut day is already priced in by the underwriters before the first public trade happens.

A large opening valuation and a durable one are two different claims, and a ranking sorted purely by valuation at listing is measuring the first, not the second.

A private-equity-backed IPO is usually an exit for the existing sponsor, so the price reflects negotiation between that sponsor and the market rather than organic growth alone — the sponsor has every incentive to time and structure the listing favorably. A family- or founder-controlled company going public more often retains a dual-class share structure or a controlling stake after listing, which means public shareholders are buying economic upside in the business without full governance control over it.

Those are structurally different investments even when the headline valuations look comparable.