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Side-by-side financial comparison of LITTELFUSE INC (LFUS) and UNITED THERAPEUTICS Corp (UTHR). Click either name above to swap in a different company.

UNITED THERAPEUTICS Corp is the larger business by last-quarter revenue ($790.2M vs $593.9M, roughly 1.3× LITTELFUSE INC). UNITED THERAPEUTICS Corp runs the higher net margin — 46.1% vs -40.8%, a 86.9% gap on every dollar of revenue. On growth, LITTELFUSE INC posted the faster year-over-year revenue change (12.2% vs 7.4%). UNITED THERAPEUTICS Corp produced more free cash flow last quarter ($173.3M vs $119.7M). Over the past eight quarters, UNITED THERAPEUTICS Corp's revenue compounded faster (8.0% CAGR vs 5.3%).

Littelfuse is a leading global manufacturer of circuit protection, sensing, and control components. Its product portfolio includes fuses, semiconductor protection devices, power switches, sensors, and circuit breakers, serving automotive, industrial electronics, consumer electronics, telecommunications, and renewable energy sectors worldwide to boost equipment safety and reliability.

United Therapeutics Corporation is an American biotechnology company that develops pharmaceuticals and technologies related to organ transplantation, including xenotransplantation. Many of the company's products are focused towards lung disease and organ manufacturing. United Therapeutics is co-headquartered in Silver Spring, Maryland and Research Triangle Park, North Carolina, with additional facilities in Magog and Bromont, Quebec; Melbourne and Jacksonville, Florida; Blacksburg, Virginia; ...

LFUS vs UTHR — Head-to-Head

Bigger by revenue
UTHR
UTHR
1.3× larger
UTHR
$790.2M
$593.9M
LFUS
Growing faster (revenue YoY)
LFUS
LFUS
+4.8% gap
LFUS
12.2%
7.4%
UTHR
Higher net margin
UTHR
UTHR
86.9% more per $
UTHR
46.1%
-40.8%
LFUS
More free cash flow
UTHR
UTHR
$53.6M more FCF
UTHR
$173.3M
$119.7M
LFUS
Faster 2-yr revenue CAGR
UTHR
UTHR
Annualised
UTHR
8.0%
5.3%
LFUS

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
LFUS
LFUS
UTHR
UTHR
Revenue
$593.9M
$790.2M
Net Profit
$-242.1M
$364.3M
Gross Margin
38.0%
86.9%
Operating Margin
-37.5%
45.1%
Net Margin
-40.8%
46.1%
Revenue YoY
12.2%
7.4%
Net Profit YoY
-367.6%
20.9%
EPS (diluted)
$-9.71
$7.66

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
LFUS
LFUS
UTHR
UTHR
Q4 25
$593.9M
$790.2M
Q3 25
$624.6M
$799.5M
Q2 25
$613.4M
$798.6M
Q1 25
$554.3M
$794.4M
Q4 24
$529.5M
$735.9M
Q3 24
$567.4M
$748.9M
Q2 24
$558.5M
$714.9M
Q1 24
$535.4M
$677.7M
Net Profit
LFUS
LFUS
UTHR
UTHR
Q4 25
$-242.1M
$364.3M
Q3 25
$69.5M
$338.7M
Q2 25
$57.3M
$309.5M
Q1 25
$43.6M
$322.2M
Q4 24
$-51.8M
$301.3M
Q3 24
$58.1M
$309.1M
Q2 24
$45.5M
$278.1M
Q1 24
$48.5M
$306.6M
Gross Margin
LFUS
LFUS
UTHR
UTHR
Q4 25
38.0%
86.9%
Q3 25
38.6%
87.4%
Q2 25
37.8%
89.0%
Q1 25
37.4%
88.4%
Q4 24
33.4%
89.7%
Q3 24
38.1%
88.9%
Q2 24
37.1%
89.1%
Q1 24
35.1%
89.2%
Operating Margin
LFUS
LFUS
UTHR
UTHR
Q4 25
-37.5%
45.1%
Q3 25
15.6%
48.6%
Q2 25
15.1%
45.6%
Q1 25
12.7%
48.2%
Q4 24
-9.3%
48.6%
Q3 24
15.5%
45.8%
Q2 24
11.7%
44.7%
Q1 24
10.3%
52.6%
Net Margin
LFUS
LFUS
UTHR
UTHR
Q4 25
-40.8%
46.1%
Q3 25
11.1%
42.4%
Q2 25
9.3%
38.8%
Q1 25
7.9%
40.6%
Q4 24
-9.8%
40.9%
Q3 24
10.2%
41.3%
Q2 24
8.1%
38.9%
Q1 24
9.0%
45.2%
EPS (diluted)
LFUS
LFUS
UTHR
UTHR
Q4 25
$-9.71
$7.66
Q3 25
$2.77
$7.16
Q2 25
$2.30
$6.41
Q1 25
$1.75
$6.63
Q4 24
$-2.07
$6.23
Q3 24
$2.32
$6.39
Q2 24
$1.82
$5.85
Q1 24
$1.93
$6.17

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
LFUS
LFUS
UTHR
UTHR
Cash + ST InvestmentsLiquidity on hand
$563.7M
$2.9B
Total DebtLower is stronger
$802.6M
Stockholders' EquityBook value
$2.4B
$7.1B
Total Assets
$4.0B
$7.9B
Debt / EquityLower = less leverage
0.33×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
LFUS
LFUS
UTHR
UTHR
Q4 25
$563.7M
$2.9B
Q3 25
$815.0M
$2.8B
Q2 25
$685.5M
$3.0B
Q1 25
$619.7M
$3.3B
Q4 24
$725.9M
$3.3B
Q3 24
$630.7M
$3.3B
Q2 24
$562.7M
$3.0B
Q1 24
$562.4M
$2.7B
Total Debt
LFUS
LFUS
UTHR
UTHR
Q4 25
$802.6M
Q3 25
$805.8M
Q2 25
$810.2M
Q1 25
$805.7M
Q4 24
$856.1M
Q3 24
$867.7M
Q2 24
$863.5M
Q1 24
$866.7M
Stockholders' Equity
LFUS
LFUS
UTHR
UTHR
Q4 25
$2.4B
$7.1B
Q3 25
$2.7B
$6.6B
Q2 25
$2.6B
$7.2B
Q1 25
$2.5B
$6.8B
Q4 24
$2.4B
$6.4B
Q3 24
$2.6B
$6.1B
Q2 24
$2.5B
$5.7B
Q1 24
$2.5B
$5.3B
Total Assets
LFUS
LFUS
UTHR
UTHR
Q4 25
$4.0B
$7.9B
Q3 25
$4.2B
$7.4B
Q2 25
$4.1B
$7.9B
Q1 25
$3.9B
$7.7B
Q4 24
$3.9B
$7.4B
Q3 24
$4.1B
$7.1B
Q2 24
$3.9B
$6.7B
Q1 24
$3.9B
$6.5B
Debt / Equity
LFUS
LFUS
UTHR
UTHR
Q4 25
0.33×
Q3 25
0.30×
Q2 25
0.31×
Q1 25
0.33×
Q4 24
0.35×
Q3 24
0.34×
Q2 24
0.35×
Q1 24
0.35×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
LFUS
LFUS
UTHR
UTHR
Operating Cash FlowLast quarter
$138.7M
$346.2M
Free Cash FlowOCF − Capex
$119.7M
$173.3M
FCF MarginFCF / Revenue
20.2%
21.9%
Capex IntensityCapex / Revenue
3.2%
21.9%
Cash ConversionOCF / Net Profit
0.95×
TTM Free Cash FlowTrailing 4 quarters
$366.1M
$1.0B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
LFUS
LFUS
UTHR
UTHR
Q4 25
$138.7M
$346.2M
Q3 25
$146.9M
$562.1M
Q2 25
$82.5M
$191.7M
Q1 25
$65.8M
$461.2M
Q4 24
$160.6M
$341.2M
Q3 24
$80.4M
$377.2M
Q2 24
$69.4M
$232.2M
Q1 24
$57.1M
$376.5M
Free Cash Flow
LFUS
LFUS
UTHR
UTHR
Q4 25
$119.7M
$173.3M
Q3 25
$131.2M
$351.6M
Q2 25
$72.6M
$129.5M
Q1 25
$42.7M
$386.3M
Q4 24
$134.8M
$254.5M
Q3 24
$65.0M
$300.7M
Q2 24
$50.3M
$187.1M
Q1 24
$41.6M
$338.3M
FCF Margin
LFUS
LFUS
UTHR
UTHR
Q4 25
20.2%
21.9%
Q3 25
21.0%
44.0%
Q2 25
11.8%
16.2%
Q1 25
7.7%
48.6%
Q4 24
25.5%
34.6%
Q3 24
11.5%
40.2%
Q2 24
9.0%
26.2%
Q1 24
7.8%
49.9%
Capex Intensity
LFUS
LFUS
UTHR
UTHR
Q4 25
3.2%
21.9%
Q3 25
2.5%
26.3%
Q2 25
1.6%
7.8%
Q1 25
4.2%
9.4%
Q4 24
4.9%
11.8%
Q3 24
2.7%
10.2%
Q2 24
3.4%
6.3%
Q1 24
2.9%
5.6%
Cash Conversion
LFUS
LFUS
UTHR
UTHR
Q4 25
0.95×
Q3 25
2.11×
1.66×
Q2 25
1.44×
0.62×
Q1 25
1.51×
1.43×
Q4 24
1.13×
Q3 24
1.39×
1.22×
Q2 24
1.53×
0.83×
Q1 24
1.18×
1.23×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

LFUS
LFUS

Electronics Passive Products And Sensors$174.9M29%
Electronics Semiconductor$170.3M29%
Industrial Products$85.0M14%
Commercial Vehicle Products$76.2M13%
Passenger Car Products$72.8M12%
Automotive Sensors$14.7M2%
Dortmund Fab$12.5M2%

UTHR
UTHR

Tyvaso DPI$338.6M43%
Remodulin$128.0M16%
Nebulized Tyvaso$125.7M16%
Orenitram$121.2M15%
Unituxin$62.3M8%
Adcirca$7.8M1%
Other$6.6M1%

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