The Beer Foam Metaphor
Imagine pouring a glass of beer. The beer itself represents the fundamental value of a company — its real earnings, cash flows, assets, and growth potential. The foam on top represents speculation — the premium investors pay above fundamental value based on hype, momentum, or emotion.
A well-poured pint has some foam, but not too much. Similarly, most stocks trade with some speculative premium. The key question for value investors is: how much of what I'm paying for is beer, and how much is foam?
The Beer Score (0-100)
Our Beer Score measures the percentage of a stock's price that is supported by fundamental value. A score of 85 means approximately 85% of the price is "beer" (fundamentals) and 15% is "foam" (speculation).
Calculating Intrinsic Value
Our intrinsic value (IV) estimates are derived from Discounted Cash Flow (DCF) analysis — the gold standard of fundamental valuation. We estimate future free cash flows and discount them back to present value using appropriate risk-adjusted rates.
Key inputs include:
- Free Cash Flow (FCF) — Cash generated after capital expenditures
- Growth Rate — Expected rate of FCF growth
- Discount Rate — Required return based on risk (WACC)
- Terminal Value — Value beyond the forecast period
The IV serves as an "anchor" — a reference point for determining whether the current price represents good value or elevated speculation.
Foam Percentage
The foam percentage represents how much of the current price exceeds our intrinsic value estimate. If a stock trades at $120 with an IV of $100, the foam percentage is approximately 20% — meaning 20% of what you're paying is speculation.
Important Disclaimer
JustTheBeer is an educational research tool, not investment advice. Our calculations are estimates based on publicly available data and standard valuation methodologies. Intrinsic value is inherently uncertain — reasonable analysts can disagree significantly. Always conduct your own due diligence and consider consulting a financial advisor before making investment decisions.