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Side-by-side financial comparison of BEL FUSE INC (BELFA) and Esperion Therapeutics, Inc. (ESPR). Click either name above to swap in a different company.

BEL FUSE INC is the larger business by last-quarter revenue ($178.5M vs $168.4M, roughly 1.1× Esperion Therapeutics, Inc.). On growth, Esperion Therapeutics, Inc. posted the faster year-over-year revenue change (143.7% vs 17.2%). Over the past eight quarters, BEL FUSE INC's revenue compounded faster (15.8% CAGR vs 10.6%).

Bel Fuse Inc. is a global manufacturer of electronic components, offering interconnect solutions, magnetics, and circuit protection products for industries including automotive, data communications, aerospace, industrial, and consumer electronics. It serves original equipment manufacturers and contract manufacturers across North America, Europe, and Asia, prioritizing high-performance, reliable components for cutting-edge technology applications.

Esperion Therapeutics, Inc. is a publicly traded American pharmaceutical company focused on the development of bempedoic acid, an orally available small molecule designed to lower elevated levels of LDL-C. The company is headquartered in Ann Arbor, Michigan.

BELFA vs ESPR — Head-to-Head

Bigger by revenue
BELFA
BELFA
1.1× larger
BELFA
$178.5M
$168.4M
ESPR
Growing faster (revenue YoY)
ESPR
ESPR
+126.5% gap
ESPR
143.7%
17.2%
BELFA
Faster 2-yr revenue CAGR
BELFA
BELFA
Annualised
BELFA
15.8%
10.6%
ESPR

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
BELFA
BELFA
ESPR
ESPR
Revenue
$178.5M
$168.4M
Net Profit
$15.0M
Gross Margin
39.0%
Operating Margin
13.3%
50.6%
Net Margin
8.4%
Revenue YoY
17.2%
143.7%
Net Profit YoY
-18.2%
EPS (diluted)
$0.32

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
BELFA
BELFA
ESPR
ESPR
Q1 26
$178.5M
Q4 25
$175.9M
$168.4M
Q3 25
$179.0M
$87.3M
Q2 25
$168.3M
$82.4M
Q1 25
$152.2M
$65.0M
Q4 24
$149.9M
$69.1M
Q3 24
$123.6M
$51.6M
Q2 24
$133.2M
$73.8M
Net Profit
BELFA
BELFA
ESPR
ESPR
Q1 26
$15.0M
Q4 25
$6.4M
Q3 25
$22.6M
$-31.3M
Q2 25
$26.8M
$-12.7M
Q1 25
$17.9M
$-40.5M
Q4 24
$6.4M
Q3 24
$8.1M
$-29.5M
Q2 24
$18.8M
$-61.9M
Gross Margin
BELFA
BELFA
ESPR
ESPR
Q1 26
39.0%
Q4 25
39.4%
Q3 25
39.7%
Q2 25
38.7%
Q1 25
38.6%
Q4 24
37.5%
Q3 24
36.1%
Q2 24
40.1%
Operating Margin
BELFA
BELFA
ESPR
ESPR
Q1 26
13.3%
Q4 25
14.7%
50.6%
Q3 25
16.9%
-11.4%
Q2 25
17.7%
8.6%
Q1 25
16.4%
-34.0%
Q4 24
8.3%
-6.4%
Q3 24
9.3%
-31.0%
Q2 24
17.0%
3.5%
Net Margin
BELFA
BELFA
ESPR
ESPR
Q1 26
8.4%
Q4 25
3.7%
Q3 25
12.6%
-35.9%
Q2 25
15.9%
-15.4%
Q1 25
11.7%
-62.2%
Q4 24
4.3%
Q3 24
6.5%
-57.2%
Q2 24
14.1%
-83.9%
EPS (diluted)
BELFA
BELFA
ESPR
ESPR
Q1 26
Q4 25
$0.32
Q3 25
$-0.16
Q2 25
$-0.06
Q1 25
$-0.21
Q4 24
$-0.14
Q3 24
$-0.15
Q2 24
$-0.33

Balance Sheet & Financial Strength

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

Metric
BELFA
BELFA
ESPR
ESPR
Cash + ST InvestmentsLiquidity on hand
$59.4M
$167.9M
Total DebtLower is stronger
$204.5M
Stockholders' EquityBook value
$438.9M
$-302.0M
Total Assets
$951.9M
$465.9M
Debt / EquityLower = less leverage
0.47×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
BELFA
BELFA
ESPR
ESPR
Q1 26
$59.4M
Q4 25
$57.8M
$167.9M
Q3 25
$57.7M
$92.4M
Q2 25
$59.3M
$86.1M
Q1 25
$65.9M
$114.6M
Q4 24
$68.3M
$144.8M
Q3 24
$134.3M
$144.7M
Q2 24
$85.0M
$189.3M
Total Debt
BELFA
BELFA
ESPR
ESPR
Q1 26
$204.5M
Q4 25
$197.5M
Q3 25
Q2 25
Q1 25
Q4 24
$287.5M
Q3 24
Q2 24
Stockholders' Equity
BELFA
BELFA
ESPR
ESPR
Q1 26
$438.9M
Q4 25
$425.5M
$-302.0M
Q3 25
$427.8M
$-451.4M
Q2 25
$404.7M
$-433.5M
Q1 25
$376.9M
$-426.2M
Q4 24
$360.6M
$-388.7M
Q3 24
$367.4M
$-370.2M
Q2 24
$356.4M
$-344.2M
Total Assets
BELFA
BELFA
ESPR
ESPR
Q1 26
$951.9M
Q4 25
$935.2M
$465.9M
Q3 25
$952.8M
$364.0M
Q2 25
$950.6M
$347.1M
Q1 25
$940.5M
$324.0M
Q4 24
$949.8M
$343.8M
Q3 24
$584.4M
$314.1M
Q2 24
$567.6M
$352.3M
Debt / Equity
BELFA
BELFA
ESPR
ESPR
Q1 26
0.47×
Q4 25
0.46×
Q3 25
Q2 25
Q1 25
Q4 24
0.80×
Q3 24
Q2 24

Cash Flow & Capital Efficiency

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

Metric
BELFA
BELFA
ESPR
ESPR
Operating Cash FlowLast quarter
$13.8M
$45.2M
Free Cash FlowOCF − Capex
FCF MarginFCF / Revenue
Capex IntensityCapex / Revenue
0.0%
Cash ConversionOCF / Net Profit
0.92×
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
BELFA
BELFA
ESPR
ESPR
Q1 26
$13.8M
Q4 25
$29.6M
$45.2M
Q3 25
$22.2M
$-4.3M
Q2 25
$20.7M
$-31.4M
Q1 25
$8.1M
$-22.6M
Q4 24
$8.3M
$-35.0M
Q3 24
$27.4M
$-35.3M
Q2 24
$32.2M
$-7.2M
Free Cash Flow
BELFA
BELFA
ESPR
ESPR
Q1 26
Q4 25
$26.1M
Q3 25
$20.3M
Q2 25
$16.8M
Q1 25
$5.4M
Q4 24
$2.1M
Q3 24
$23.7M
$-35.5M
Q2 24
$30.8M
$-7.3M
FCF Margin
BELFA
BELFA
ESPR
ESPR
Q1 26
Q4 25
14.9%
Q3 25
11.4%
Q2 25
10.0%
Q1 25
3.5%
Q4 24
1.4%
Q3 24
19.2%
-68.7%
Q2 24
23.2%
-9.9%
Capex Intensity
BELFA
BELFA
ESPR
ESPR
Q1 26
Q4 25
1.9%
0.0%
Q3 25
1.0%
0.0%
Q2 25
2.3%
0.0%
Q1 25
1.8%
0.0%
Q4 24
4.1%
0.0%
Q3 24
2.9%
0.3%
Q2 24
1.0%
0.1%
Cash Conversion
BELFA
BELFA
ESPR
ESPR
Q1 26
0.92×
Q4 25
4.59×
Q3 25
0.98×
Q2 25
0.77×
Q1 25
0.46×
Q4 24
1.30×
Q3 24
3.39×
Q2 24
1.71×

Financial Flow Comparison

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

Revenue Breakdown by Segment

BELFA
BELFA

Segment breakdown not available.

ESPR
ESPR

Collaboration Revenue$124.7M74%
Products$43.7M26%

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