At a glance
Littelfuse Inc is worth $9.83B. Revenue grew 8.9% to $2.39B in fiscal 2025, at a loss; over 5 years it has grown 10.5% a year. It pays a 0.79% dividend yield, raised every year for at least 9 years, and returned $375.3M to shareholders in dividends and buybacks over FY2021–FY2025. The stock returned +48.8% over the past year with dividends reinvested and +6.8% a year over five years, against +11.5% and +11.7% for the S&P 500. At its worst it fell 43.8% in the 2020 crash (S&P 500: 33.7%) and 38.8% in the 2022 bear market (S&P 500: 24.5%), and was back at its earlier high 5 months and 40 months after the lows.
The business in plain English
Littelfuse, founded in 1927, makes parts that protect and control electrical power. Its products include fuses, switches, relays, sensors and power semiconductors (chips that switch and convert electricity). It sells to equipment makers, automotive suppliers and parts distributors. Its engineers often work with customers' research teams to design its parts into next-generation products. The company has about 17,000 employees in more than 20 countries.
In fiscal 2025, which ended December 27, 2025, sales rose 8.9% to $2.39 billion. Electronics was the largest segment at 56.4%. It splits almost evenly between passive products such as fuses and switches, plus sensors (28.3% of sales), and semiconductors such as silicon carbide transistors (28.1%). Transportation (28.3%) sells fuses, sensors, switches and power distribution modules for cars, electric vehicles, trucks, buses and farm and construction equipment. Industrial (15.3%) sells industrial fuses, protective relays, contactors and temperature sensors.
Sales are spread worldwide: 34.8% came from the U.S., 24% from China and 41.3% from other countries. In December 2025 the company spent about $350 million of its cash on Basler Electric, which makes control and protection gear for power grids, power generation and data centers. A new CEO and CFO took charge in 2025, and the company is prioritizing data centers, aerospace and defense, battery energy storage and grid infrastructure.
Price history
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LFUS +48.8% over the year to Oct 28, 2026, total return with dividends reinvested.
How it makes money
By product or service
| Electronics – Passive Products and Sensors | $675.9M | 28.3% |
| Electronics – Semiconductor | $669.6M | 28.1% |
| Industrial Products | $364.4M | 15.3% |
| Commercial Vehicle Products | $320.5M | 13.4% |
| Passenger Car Products | $293.6M | 12.3% |
| Automotive Sensors | $62.2M | 2.6% |
By business segment
| Electronics | $1.35B | 56.4% |
| Transportation Segment | $676.4M | 28.3% |
| Industrial | $364.4M | 15.3% |
By geography
| Other countries | $984.4M | 41.3% |
| U.S. | $830.3M | 34.8% |
| China | $571.6M | 24% |
Latest results
- In Q3 FY2026 (ended Sep 26, 2026), revenue was $766.7M, up 22.7% from a year earlier, and net income was $115.4M (+66.0%).
- For fiscal 2025, revenue was $2.39B (+8.9% year over year; +10.5% a year from FY2020 to FY2025) with a -3% net margin.
Financial health check
| Revenue growth a year (FY2020–FY2025) | +10.5% good |
|---|---|
| Operating margin | 1.6% weak |
| Free cash flow margin | 15.3% good |
| Return on equity (FY2025) | -3% weak |
| Return on assets (FY2025) | -1.8% weak |
| Net cash (cash minus debt) | $207.1M good |
| Fiscal year | Revenue | Net income | Free cash flow |
|---|---|---|---|
| FY2020 | $1.45B | $130.0M | $201.8M |
| FY2021 | $2.08B | $283.8M | $282.8M |
| FY2022 | $2.51B | $373.3M | $315.4M |
| FY2023 | $2.36B | $259.5M | $371.2M |
| FY2024 | $2.19B | $100.2M | $291.7M |
| FY2025 | $2.39B | $-71.7M | $366.1M |
Valuation snapshot
| Market value | $9.83B |
|---|---|
| P/E ratio | — |
| Dividend yield | 0.79% |
Rank among 1514 US companies
Market value at each year end
Littelfuse’s market value went from $3.42B at the end of 2016 to $9.83B on Oct 28, 2026, about 2.9 times as much; since the end of 2025 it is up 56%.
Show as a table
| Year end | Market value | Change |
|---|---|---|
| Oct 28, 2026 | $9.83B | +56.2% |
| 2025 | $6.30B | +7.7% |
| 2024 | $5.85B | -12.2% |
| 2023 | $6.66B | +22.2% |
| 2022 | $5.45B | -29.7% |
| 2021 | $7.75B | +24.9% |
| 2020 | $6.21B | +33.2% |
| 2019 | $4.66B | +8.0% |
| 2018 | $4.31B | -4.0% |
| 2017 | $4.49B | +31.4% |
| 2016 | $3.42B |
Price behavior
| YTD | 1 yr | 3 yr | 5 yr | 10 yr | |
|---|---|---|---|---|---|
| LFUS price data to Oct 28, 2026 | +53.9% | +48.8% | +22.7% | +6.8% | +11.9% |
Show as a table
| Year | Price data |
|---|---|
| 2026 (to date) | +54.0% |
| 2025 | +8.7% |
| 2024 | -11.0% |
| 2023 | +22.7% |
| 2022 | -29.4% |
| 2021 | +24.5% |
| 2020 | +34.5% |
| 2019 | +12.7% |
| 2018 | -12.6% |
| 2017 | +31.4% |
| 2016 | +43.3% |
| 2015 | +11.9% |
| 2014 | +5.1% |
| 2013 | +52.3% |
| 2012 | +45.6% |
| 2011 | -7.4% |
| 2010 | +46.9% |
| 2009 | +93.7% |
| 2008 | -49.6% |
| 2007 | +3.4% |
| 2006 | +17.0% |
| 2008 financial crisis stocks fell Oct 9, 2007 – Mar 9, 2009 | Lost 75.7% over that stretch · deepest drop along the way 77.3%, back to its old high 12.1 months after the low |
|---|---|
| 2020 COVID crash stocks fell Feb 19, 2020 – Mar 23, 2020 | Lost 39.8% over that stretch · deepest drop along the way 43.8%, back to its old high 4.8 months after the low |
| 2022 bear market stocks fell Jan 3, 2022 – Oct 12, 2022 | Lost 37.1% over that stretch · deepest drop along the way 38.8%, back to its old high 40.1 months after the low |
Insider activity
Form 4 filings from 2025-10-31 to 2026-10-31 (25 read): 0 open-market purchases and 3 sales ($1.3M).
| Date | Insider | Type | Value |
|---|---|---|---|
| Oct 29, 2026 | David Ruppel SVP & GM Transportation Bus. | sell | $604K |
| Jun 18, 2026 | Jeffrey G Gorski SVP & Chief Accounting Officer | sell | $551K |
| Jun 18, 2026 | Jeffrey G Gorski SVP & Chief Accounting Officer | sell | $119K |
Who owns it
Large shareholders (13G filings)
| Vanguard Portfolio Management | 6.24% | Mar 31, 2026 |
| Vanguard Capital Management | 5.23% | Mar 31, 2026 |
ETFs with the most weight in LFUS
| TDV ProShares S&P Technology Dividend Aristocrats ETF | 2.12% |
| LOPP Gabelli Love Our Planet & People ETF | 1.13% |
| SMOT VanEck Morningstar SMID Moat ETF | 1.08% |
| PEXL Pacer US Export Leaders ETF | 0.86% |
| QQQS Invesco NASDAQ Future Gen 200 ETF | 0.44% |
| IVOV Vanguard S&P Mid-Cap 400 Value ETF | 0.4% |
| CPTL Global X Morningstar Capital Allocation Leaders ETF | 0.4% |
| JHSC John Hancock Multifactor Small Cap ETF | 0.32% |
What could go wrong
- Bets on new markets may not pay off. The company is prioritizing data centers, aerospace and defense, battery energy storage and grid infrastructure. Its 10-K warns that these markets change fast. That makes success hard to forecast and could waste resources.
- Acquisitions could disappoint or force write-downs. Littelfuse grows partly by buying companies, such as Basler Electric for $350.3 million in December 2025. Deals can underperform or hide liabilities. Weaker profits could also force write-downs of goodwill, the premium paid for acquisitions.
- Tariffs and trade tensions. Shifts in U.S. and foreign trade policy, including tariffs, could raise costs or cut demand. China alone accounted for 24% of fiscal 2025 sales, and only 34.8% came from the U.S.
- Safety parts make defects costly. Littelfuse makes fuses, relays and other parts that protect equipment and people. A defect could bring warranty claims, product recalls and product liability costs.
- Cheaper rivals can squeeze prices. The company competes on price, quality and service in crowded markets. It says it cannot always match manufacturers with lower costs. Some rivals also have far greater sales, financial and manufacturing resources.
- High fixed costs magnify sales slumps. Factory costs don't shrink when demand does, so profits can fall faster than sales. Revenue slipped from $2.51 billion in fiscal 2022 to $2.19 billion in fiscal 2024.
Recent events
- Quarterly results released; Investor presentation or announcement
- Investor presentation or announcement
- Executive or board change
- Executive or board change; Investor presentation or announcement
- Quarterly results released; Investor presentation or announcement
- Investor presentation or announcement
- Quarterly results released; Investor presentation or announcement
- Executive or board change; Shareholder vote results
- Major agreement signed; New debt or financial obligation
- Executive or board change; Investor presentation or announcement
For income and retirement investors
Littelfuse pays a small, steadily rising dividend. It has raised it for at least nine straight fiscal years through 2025. Dividends per share grew from $1.92 in fiscal 2020 to $2.90 in fiscal 2025, about 8.6% a year. The yield was just 0.79% as of October 28, 2026, so the income is modest. The company posted a net loss in fiscal 2025, but dividends used only 19.7% of free cash flow (cash left after capital spending). Buybacks totaled $68.4 million over fiscal 2021–2025. Even so, the share count rose 2.9% from February 2022 to October 2026.
The shares have fallen hard in downturns: 77.3% in the 2008 financial crisis, 43.8% in the 2020 COVID crash and 38.8% in the 2022 bear market. The stock made back its COVID losses within about five months, but it did not recover from the 2022 decline until January 2026. A single stock carries more risk than a diversified fund.
Questions investors ask
How does Littelfuse make money?
Littelfuse makes money by selling parts that protect, control and sense electrical power, including fuses, switches, relays, sensors and power semiconductors. Fiscal 2025 sales were $2.39 billion. Electronics brought in 56.4% of that. Transportation, which makes parts for cars, trucks, buses and off-road equipment, brought in 28.3%. Industrial, which makes industrial fuses, protective relays and controls, brought in 15.3%. Customers include equipment makers, automotive suppliers and distributors in the U.S., China and many other countries.
Does Littelfuse raise its dividend every year?
Yes, so far. Littelfuse has raised its dividend for at least nine straight fiscal years through 2025, and the streak may be longer. Dividends per share rose from $1.92 in fiscal 2020 to $2.90 in fiscal 2025, about 8.6% a year. The yield is small, though: 0.79% as of October 28, 2026. Past increases do not guarantee future ones.
Is Littelfuse profitable?
Yes in its latest reported quarter, but not for fiscal 2025 as a whole. That year it posted a net loss of $71.7 million, or $2.89 per diluted share, on $2.39 billion of sales. Its operating margin, or operating profit as a share of sales, was just 1.6%. Free cash flow, the cash left after capital spending, was still $366.1 million. In the quarter ended September 26, 2026, revenue rose 22.7% from a year earlier to $766.7 million. Net income rose 66% to $115.4 million.
Does Littelfuse have a lot of debt?
No. Littelfuse holds more cash than debt. As of September 26, 2026, it had $837.0 million in cash and investments against $629.9 million of total debt, leaving net cash of about $207.1 million. Shareholders' equity was $2.72 billion. The company paid for its recent purchases of Basler Electric and a wafer factory in Dortmund, Germany, with cash on hand rather than borrowing.
How has Littelfuse stock performed?
Strongly over the past year, more modestly over five years. As of October 28, 2026, the share price was up 53.9% year to date and 48.8% over one year. Over five years it gained about 6.8% a year, and over 10 years about 11.9% a year. The ride has been rough. Within the past three years the stock fell as much as 45% from a peak, and over the past year it moved about 1.75 times as much as the broad market.