Methodology · v2.9

MVStabilità dei margini

Operating-margin coefficient of variation (CV) for {legal_name} across the last 8 quarters. EXTRACTION RULES: Compute CV = stddev(opmargin) / mean(opmargin) × 100 from the last 8 quarterly filings. Lower CV = more stable margins. Cite SEC 10-Q filings + at least one independent financial database (StockAnalysis / Macrotrends). Return exact_numerical{value: <cv_pct>, unit: "percent", source_urls: [...]}. Server applies ratio_band (<5→90, 5-15→70, 15-30→45, 30-50→25, 50+→10) — DO NOT compute any 0-100 score. This metric requires ≥8 quarters of public quarterly margins: if {legal_name} files no quarterly statements (private, subsidiary, B2B with annual-only or no disclosure) and no reputable third party publishes the quarterly margin series, return type="absent" reason="not_disclosed" — NEVER estimate or fabricate a CV value.