Use Your Own Alpha Vantage API Key // shared key (rate-limited)

// Stored in localStorage on this device only.

Your Buffett Thesis // judgment inputs

Buffett-style framework Discount owner earnings (net income + D&A − maintenance capex) at your hurdle rate. Forget WACC, betas, country premia. Anchor on the long bond yield and a moat-sized premium — then demand a margin of safety.
ⓘ How to set growth + duration

Buffett wants predictable compounders. Anchor on the last 10y owner-earnings CAGR, management guidance, and your moat assessment.

Rough benchmarks:

  • Wide-moat consumer staples (KO, PG): 5–8%
  • Wide-moat networks (V, MA, MCO): 9–12%
  • Cyclical / commodity (steady-state): 3–5%
  • Growth compounders (post-IPO mature SaaS): 12–15%

10 years is the Buffett default. Shorten to 5–7y for narrower moats, lengthen only for the truly exceptional.

ⓘ What this is

The perpetual growth rate after Stage 1. Anchor on long-run inflation — no business compounds faster than the economy forever. Buffett uses 2–3% for almost everything.

Must stay below the discount rate or the formula breaks.

ⓘ The Buffett way to pick a hurdle rate

Buffett famously rejects CAPM, beta, and country premia. He compares cash flows to the long bond as the opportunity cost — if a business can't beat that risk-adjusted, it's not worth owning.

Common Buffett-style anchors:

  • 10Y Treasury floor: ~4.5%
  • 10Y + 3% (predictable wide-moat): ~7.5%
  • 10Y + 5% (typical large-cap): ~9.5%
  • 10Y + 7% (narrow moat / cyclical): ~11.5%
  • Flat 10% (Buffett-style "common-sense" hurdle)

Higher rate = more conservative valuation. Live US 10Y on FRED →

ⓘ The Graham/Buffett MoS rule

The discount to intrinsic value you demand before buying. Protects you from being wrong on the forecast.

Rule of thumb:

  • Wide moat, predictable: 15–25%
  • Typical large-cap: 25–35%
  • Cyclical / less predictable: 40–50%

Owner Earnings Adjustments

// blank → defaults to 5y median capex after a fetch (D&A as fallback).

ⓘ The hardest number in the whole model

Buffett's 1986 letter calls this out as the most subjective input. Three practical approaches:

  1. Default = D&A. Works for steady-state businesses where growth capex is small.
  2. 5–10y average CapEx, if total capex is choppy.
  3. Bottom-up: read the 10-K segment-by-segment "maintenance vs growth" breakdown when management provides it (rare but increasingly common).

Over-estimating maintenance capex = lower owner earnings = more conservative valuation. When in doubt, lean high.

ⓘ When to use this

Buffett's "(d) any additional working capital that might be needed for current volume". Often zero or trivially small for asset-light businesses.

Read it off the cash flow statement — the structural piece of working-capital change, not seasonal noise.

Intrinsic Value / Share
$0.00
Awaiting Data
MoS Buy Price (25%)
$0.00
Target Entry
Owner-Earnings Yield ?
0.00%
at current price

Owner Earnings Build-up

$M · LATEST FY
Net Income
0
+ D&A
0
− Maint. CapEx
0
− ΔWC
0
= Owner Earnings
0

Projected Owner Earnings

IN MILLIONS USD

Live Data // API-fetched

Auto-populated from the API fetch. Override only if the latest filing isn't yet indexed, or if you want to use normalized numbers.

Sensitivity — Growth × Discount

IV per share at ±2pp Stage-1 growth and ±1pp discount rate. The diagonal is your central case.

  g−2 g g+2
r−1
r
r+1