Not investment advice. Educational reading. See Disclaimer.
L.11 · BEGINNER · 2 MIN
Earnings Predictability
Earnings predictability is the degree to which a company's future earnings can be reliably forecasted. Buffett and other value investors pay a premium for it because a business you cannot forecast is a business you cannot value.
Consumer staples, pricing power, broad distribution
Delta Airlines (DAL)
Extreme — losses in 2020, strong in 2019 and 2023
Fuel prices, labor, pandemics, fare wars
Exploration E&P
Extreme — tracks oil price swings
Commodity exposure, capex-heavy, no pricing power
§ 03Try it
Pull up KO and DAL side by side. Look at 10-year EPS history on each Ticker view. Notice how KO's line is nearly straight while DAL's swings wildly — that visual difference IS earnings predictability.
§ 04Key insight
Why Buffett pays more for predictable earnings: a DCF is only as reliable as its inputs. If you cannot forecast next year's earnings within 10%, you certainly cannot forecast year 10. Predictability shrinks the error bars on intrinsic value — so the same 15% discount rate produces a tighter, more actionable valuation. That confidence is worth paying for.
§ 05Check-in
Which is MORE important for valuation confidence: last year's EPS, or the standard deviation of EPS over the last 10 years?
§ 06Key insight
Practical rule: if you cannot forecast earnings within +/- 15% three years out, demand at least a 30% margin of safety on intrinsic value — or skip the investment entirely.
Check your understanding
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Sit with the ideas.
In his 1996 Berkshire Hathaway Chairman's Letter, Buffett wrote that he would prefer a lumpy 15% return to a smooth 12%. Yet his largest long-term positions (KO, AXP, MCO) all share predictable earnings. How do you reconcile these?
