Changelog

Bug fixes, edge-case handling, and methodology refinements — in plain English.

2026-06-20

Impairment-aware EBIT normalization (write-off detection)

Reported operating earnings often fold in one-time, non-cash charges like goodwill impairments and restructuring write-downs that say nothing about how the business actually earns....

2026-06-19

Marginal vs. average return on capital for terminal value

A company's average return on invested capital divides profit by every dollar of capital ever put to work, including goodwill from old acquisitions. For companies built through M&A...

2026-06-18

Goodwill-stripped capital-efficiency convergence

The model assumes a company's capital efficiency, meaning the revenue it produces per dollar of invested capital, drifts toward its industry average over time. But reported efficie...

2026-06-16

Industry-classification hardening

Every terminal assumption — margin, beta, leverage, tax rate, cost of debt, capital efficiency — is pulled by matching the data provider's industry label to Damodaran's industry ta...

2026-06-15

Interest-coverage cleanup

The synthetic credit rating that sets a company's cost of debt reads interest coverage as operating profit over interest expense, and it was open to two separate problems. On Cater...

2026-06-13

Crash-resistant sensitivity grid

The sensitivity and Monte Carlo analyses re-run the full valuation across hundreds of input combinations. Some of those combinations are economically impossible — for instance a te...

2026-06-05

Robust tax-rate fallback for near-breakeven companies

Effective tax rate is normally tax paid over pre-tax income, but that ratio explodes when pre-tax income is near zero, which is common for breakeven or recently unprofitable compan...

2026-06-03

Wide-moat beta blending to prevent ROIC-spread undervaluation

The terminal discount rate assumes a company's risk, measured by beta, converges to its industry average. For wide-moat companies that durably out-earn their peers, McDonald's bein...

2026-05-31

Scoring-based convergence-year detector replaces fixed 5-year window

Assuming every company's competitive edge fades over the same fixed window misprices both quick decliners and durable compounders. The detector now scores several independent signa...

2026-05-29

Damodaran synthetic credit rating replaces naive interest/debt ratio

Estimating cost of debt as interest expense over total debt is noisy and breaks for companies with unusual debt loads. The engine now maps a company's smoothed interest coverage to...

2026-05-27

Loss-company margin-convergence cap prevents inflated moat runway

A company currently losing money at the operating line can't credibly claim a long, protected runway for that loss, since durable advantage and ongoing losses don't sit together. B...

2026-05-24

Historical net-capex floor prevents implausibly low reinvestment

The model derives reinvestment from a capital-efficiency ratio, which can imply unrealistically low or even negative reinvestment in flat or declining-revenue years, overstating fr...

2026-05-22

Correlated growth/margin shocks in Monte Carlo simulation

The Monte Carlo run draws thousands of random scenarios for the main value drivers. Drawing growth and margin independently produced unrealistic combinations, with high growth and...

2026-05-20

Materiality guard on invested capital prevents near-zero-denominator ROIC

Return on invested capital divides operating profit by invested capital, which blows up when invested capital is near zero or trivially small next to revenue. The model now require...