Freeze the common sample before calculating quality
The example is a fictional US industrial-machinery universe observed at 2026-04-01 00:00 UTC. Every included company has a December year end, USD reporting, comparable accounting treatment, FY2023 to FY2025 income statements and FY2024/FY2025 balance sheets publicly available before the cutoff. Amounts below are USD millions. All filings are assumed available by March 15, 2026; none of these names or figures represents a real investment candidate.
- Start with the securities that existed at the observation date, one common-equity listing per issuer. Retain failed, excluded and later-delisted companies in the audit file.
- Use the latest complete annual period shared by the comparison group. Do not combine one company's trailing quarter update with another company's older annual data.
- Before any quality test, require all inputs, positive revenue in every year, positive beginning and ending invested capital, positive ending equity, nonnegative debt/cash, and a documented tax rate from 0% to 100%.
- Use that complete, valid industry sample for ROIC, leverage and consistency together. Keep valid weak companies in the peer median; dropping them first changes the benchmark.
- For real historical screens, preserve the filing acceptance timestamp and original document version. A current data-provider response may contain later restatements; it is not automatically a point-in-time archive.