Forensic Analysis · Electrical Equipment · as of Nov 9, 2026
Littelfuse Inc (LFUS)
A forensic read on Littelfuse Inc built from its complete SEC filings — financial-health screens, earnings quality, red flags and a price-aware rating. Reproducible math, not opinion.
B · Sound & dependable
Forensic grade
Safe
Financial health
4.6
Distress distance
Clean
Earnings quality
2
Forensic signals
-3.0%
ROE
8.9%
Revenue growth
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 (auditor quality, say on pay, board independence, going concern). 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.
Littelfuse Inc earns a B (Sound & dependable) forensic quality grade, and its balance-sheet distress test reads 4.6, placing it in the Safe zone. 2 forensic signals were flagged in its latest SEC filings, led by return on invested capital.
What the filings flag
0.8%
FY2025
Return on invested capital.Return on invested capital is 0.8% in the latest fiscal year and slipping across FY2023–FY2025 from 9.3%. After-tax operating profit was $285M in FY2023 and $24M in FY2025, with operating income at 15.3% of revenue in FY2023, 7.2% in FY2024 and 1.6% in FY2025. The capital base behind it went from $3.1B in FY2023 to $2.9B in FY2025 (-6%), while the revenue it carried went from $2.4B to $2.4B. Across FY2024–FY2025, $551M went into capital expenditure and acquisitions against $143M of depreciation. The base is struck net of amortisation, write-downs and the current liabilities that fund it, so it moved by less than that spending net of the wear, and this row does not say which of those absorbed the difference. FY2025's operating profit carried a $302M asset write-down, a $301M goodwill write-off and a $18M restructuring charge that alone took about 14.0 points off that year's return, so more than the whole 8.5-point fall across FY2023–FY2025 is that charge landing in the latest year rather than the capital earning less. FY2024's operating profit carried a $94M asset write-down, a $45M goodwill write-off and a $15M restructuring charge that alone took about 3.4 points off that year's return; FY2024 sits between the two ends of FY2023–FY2025, so the charge shapes the path between them without moving the change across it. A non-cash write-down lowers the reported return in the year it lands.
$346M
FY2024–FY2025
Goodwill impairments.Took $346M of goodwill writedowns across 2 years (FY2024 ($45M), FY2025 ($301M)) — about 1214% of net income over the span. A large writedown means an acquisition turned out worth far less than was paid — a real mark against M&A discipline.
Key fundamentals
Latest Revenue$2.39B
Revenue Growth YoY+8.9%
Revenue CAGR (2yr)+0.5%
Net Margin-3.0%
Free Cash Flow$366.1M
Return on Equity-3.0%
Debt / Equity0.33x
The forensic grade and screens above are free — no account needed. Want the AI investment read on top — the 0–100 rating, thesis, bull-vs-bear, red flags and the 12-month scenario, written from Littelfuse Inc's actual 10-K/10-Q/8-K filings?