Changelog
Refresh trail. The site is on a quarterly attestation cadence matching the 10-Q filing season (Sep, Dec, Mar, Jun). Each entry below records what shipped, what was verified, and what is queued for the next attestation[EDGAR].
2026-07-27 (interim data verification)
- Damodaran "Margins by Sector (US)" re-verified line-by-line against the January 2026 primary flat-file; all 94 industry EBIT (Pre-tax Unadjusted Operating) margins refreshed.
- Sector figures now labelled as aggregate operating margins (Damodaran computes value-weighted aggregates, not medians of company ratios).
2026-06-20 (launch attestation)
- Site launched with 47 pages across four rails.
- All 28 primary sources verified.
- FY25 filing walkthroughs published for AAPL, MSFT, NVDA, SNOW, TSLA, UBER.
- Damodaran sector medians: January 2026 update applied.
- UK / IFRS variant published with FRS 102 and IFRS 16 treatment.
Queued for 2026-09-20 (FY26 Q1 attestation)
- Refresh Damodaran sector medians if mid-year update is published.
- Re-verify all SEC and FASB source URLs.
- Update filing walkthroughs with any FY26 Q1 10-Q figures.
- Review SEC Non-GAAP CDIs for any updates since 2026-06-20.
See primary sources and about the author.