Forensic Analysis · General / Diversified · as of Jun 27, 2026
LITTELFUSE INC /DE (LFUS)
A forensic read on LITTELFUSE INC /DE 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
Altman Z-score
Clean
Earnings quality
4
Forensic signals
-1.6%
ROE
$11.4B
Market cap
0.61%
Dividend yield
LITTELFUSE INC /DE earns a B (Sound & dependable) forensic quality grade, and its Altman Z-score is 4.6, placing it in the Safe zone. 4 forensic signals were flagged in its latest SEC filings, led by return on invested capital.
What the filings flag
1%Return on invested capital.Return on invested capital is 1% and slipping from 15% — well below its ~9% cost of capital, so reinvested dollars may be destroying value, not building it.
$380MGoodwill impairments.Took $380M of goodwill writedowns across 3 year(s) (FY2020 ($34M), FY2024 ($45M), FY2025 ($301M)) — about 48% 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.
56d DSOReceivables vs revenue.Days sales outstanding moved from 49 to 56 days FY2024→FY2025 (receivables +23% vs revenue +9%). Receivables are creeping up relative to sales — watch the trend.
-0.2%/yrShare-count dilution.Diluted share count changed -1% over the last 3 years to FY2025 (-0.2%/yr). Roughly flat — buybacks are about offsetting stock comp, not shrinking the count. Per-share value isn't being meaningfully helped or hurt by the count.
Key fundamentals
Net Margin-3.0%
Debt / Equity0.33x
Free Cash Flow$366.1M
Latest Revenue$2.39B
Return on Equity-3.0%
Revenue Growth YoY+8.9%
Go deeper — free with an account
The forensic grade and screens above are free — no account needed. An account adds the full interactive deep-dive on LITTELFUSE INC /DE:
🔒The written investment read — what the numbers mean, in plain English
🔒Ask anything about LFUS's filings — AI Q&A across the 10-K, 10-Qs & 8-Ks
🔒Interactive valuation — reverse-DCF sliders, Monte Carlo & scenario stress
🔒Calibrated 12-month price forecast, with the math shown