2026 Value Investing Conference | Keynote Speaker: Dr. Stephen Penman
Why It Matters
Integrating accounting insight with earnings‑yield and growth metrics transforms price‑book screens into a more reliable decision tool, sharpening investors’ ability to spot mispriced stocks.
Key Takeaways
- •Accounting quality is essential when interpreting price‑to‑book ratios.
- •Simple price‑to‑book screens miss earnings and growth dynamics.
- •Multiply book‑to‑price by ROE to reveal earnings‑to‑price directly.
- •Reverse‑engineer market price to estimate implicit growth assumptions.
- •Combine earnings yield with book‑to‑price for more robust screens.
Summary
Dr. Stephen Penman opened the 2026 Value Investing Conference by arguing that accounting, not just price‑to‑book, is the foundation of sound value analysis. He warned that relying on a single metric is a trap, especially in modern firms where many assets are expensed rather than capitalized.
Penman walked the audience through the residual‑income model, showing how book value, the return on equity, and the required return combine to produce an earnings‑to‑price figure. By multiplying book‑to‑price by ROE, the book component cancels, revealing the earnings yield. He then advocated reverse‑engineering the market price to extract the implied growth rate, rather than forecasting growth arbitrarily.
A concrete illustration used Microsoft’s FY2025 data. Depending on the investor’s hurdle rate (8%‑10%), the implied growth ranged from 5.3% to 12%, illustrating how modest changes in required return shift the valuation story. Penman also quoted classic wisdom—“A growth stock can be a value stock”—and emphasized that profitability must be assessed alongside the underlying book base.
The takeaway for practitioners is clear: enrich traditional price‑to‑book screens with earnings yield and implied growth calculations, and scrutinize the accounting quality behind the numbers. This dual‑lens approach helps investors gauge market expectations more accurately and avoid the pitfalls of overly simplistic screens.
Comments
Want to join the conversation?
Loading comments...