At SoccerSolver we work with three references for each player: the current market value, our model's prediction at one, two and three years, and the fair price, the "fair" value obtained by extrapolating the trend of recent valuations and damping it for age. The most interesting insight appears when those three figures diverge.
¿What is Fair Price?
The player's maximum potential value under optimal conditions, regardless of his current club or league. This serves as a maximum reference point.
Folarin Balogun (Monaco, €40M).
The most speculative of the three. His fair price explodes to €99.8M at one year and climbs to €155M at three, far above a cautious model prediction of €45M tapering to €33.8M. That gap between prediction and fair price is the widest of the trio, which means both the highest upside and the highest risk: the market has yet to settle on his mature value.
His metrics capture a player in a hot streak but with a bumpy history. The six-month rolling return was +66.7%, with a one-year Sharpe of 1.63 and a one-year Sortino of 3.86 —excellent in the short term— yet he carries a maximum drawdown of 40% and annual volatility of 41%. Whoever signs him is buying form, not stability.
Ismael Saibari (new at Bayern, €40M).
The most explosive appreciation in the analysis, and now a closed deal. His historical total return is a staggering +7,011% and his CAGR +247.6%, achieved with an outstanding risk-return balance: a one-year Sharpe of 1.86, a historical Calmar of 10.6 and a return-to-drawdown ratio of 300, all with contained annual volatility of just 21%.
The model is more conservative here, projecting stabilisation —€39.8M at one year, €35.8M at two and €28.5M at three— while the fair price rises in orderly fashion to €54.6M, €62.8M and €71.1M. The prediction-to-fair-price gap is real but far narrower than Balogun's, pointing to a more settled valuation. His move to Bayern is the real-market confirmation of that curve, and the three-year fair price suggests there is still room to grow if his progression continues in Munich.
Brian Brobbey (Sunderland, €30M).
The healthiest, most balanced profile. He shows the lowest risk of the group: a maximum drawdown of just 9.1%, a historical CAGR of +28%, a historical Sharpe of 0.66 and a Calmar of 3.08, with a solid value-stability index. The model sees him as essentially flat (around €30M across all horizons), while the fair price is more optimistic —€52.8M rising to €80.3M— reflecting his recent recovery from a dip to €20M. This is reliability rather than speculation: the profile a club buys for consistency.
Conclusions
In all three cases the fair price sits above the current market value, a sign of headroom after a good World Cup. And in all three, the distance between that fair price and the model's more conservative prediction is the best thermometer of the risk in the deal: huge for Balogun, intermediate for Brobbey, and more contained for Saibari —whose transfer to Bayern has already put a real price on that reading.
