Costco Wholesale Corp /New (COST)
A forensic read on Costco Wholesale Corp /New built from its complete SEC filings — financial-health screens, earnings quality, red flags and a price-aware rating. Reproducible math, not opinion.
This free snapshot doesn't read filing or proxy text, so the auditor-quality and governance checks that can lower a grade were not evaluated (red flags, auditor quality, say on pay, board independence). Those checks only ever lower a grade, so the full analysis can land below the grade above but never above it — treat it as the most favourable reading, not the settled one.
Costco Wholesale Corp /New earns an A (High-quality compounder) forensic quality grade, and its balance-sheet distress test reads 11.2, placing it in the Safe zone. 2 forensic signals were flagged in its latest SEC filings, led by share count.
What the filings flag
Key fundamentals
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Data from SEC EDGAR public filings · metrics as of Aug 7, 2026. Forensic signals flag probability, not certainty.