What is Bel Fuse's R&D?

Bel Fuse (BELFB) reported R&D of $7.72M in Q4 2025.

How has Bel Fuse's R&D changed year-over-year?

Bel Fuse's R&D increased by 30.9% year-over-year, from $5.9M to $7.72M.

What is the long-term trend for Bel Fuse's R&D?

Over 4 years (2021 to 2025), Bel Fuse's R&D has grown at a 9.0% compound annual growth rate (CAGR), from $21.89M to $30.87M.

Costs of research activities to discover new knowledge and development activities to translate research into new or improved products, services, processes, or technologies.

Bel Fuse BELFB R&D

R&D at other companies

VicorVICR

$22.29M+15.0%

LittelfuseLFUS

$29.74M+14.2%

DiodesDIOD

$40.62M+5.1%

Sensata TechnologiesST

$31.9M-13.3%

MaxLinearMXL

$53.16M-4.1%

BeldenBDC

$30.09M+5.9%

Other financials

Income statement

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Revenue$178.5M+17.2%

Gross profit$66.1M+30.7%

Operating income$27.7M+72.6%

Net income$15.0M-2.6%

EPS (diluted)$1.23+49.4%

Balance sheet

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Cash & equivalents$59.4M-9.8%

Total debt$226.1M-26.1%

Total equity$438.9M+16.5%

Total assets$951.9M+62.9%

Cash flow

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Operating cash flow$13.8M+69.7%

CapEx$2.6M-5.3%

Free cash flow$11.2M+109%

Valuation

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Market cap$4.22B+167%

Enterprise value$4.38B+127%

P/E69×+34.7×

P/S6×+3.2×

Profitability

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Gross margin39.1%+1.3pp

Operating margin16.4%+4.4pp

Net margin8.7%+0.5pp

FCF margin10.6%-0.5pp

Returns & leverage

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Return on equity15%+2.2pp

Debt / equity0.5×-0.3×

Current ratio3.2×-0.1×

Where this comes from

Reported directly by Bel Fuse in its filing.

Tagged under the XBRL concept us-gaap:ResearchAndDevelopmentExpense.

The official record: Bel Fuse’s 10-K, filed February 24, 2026, on SEC EDGAR. View the filing →

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Questions, answered.

What is Bel Fuse's R&D?: Bel Fuse (BELFB) reported R&D of $7.72M in Q4 2025.
How has Bel Fuse's R&D changed year-over-year?: Bel Fuse's R&D increased by 30.9% year-over-year, from $5.9M to $7.72M.
What is the long-term trend for Bel Fuse's R&D?: Over 4 years (2021 to 2025), Bel Fuse's R&D has grown at a 9.0% compound annual growth rate (CAGR), from $21.89M to $30.87M.
What does R&D mean?: Costs of research activities to discover new knowledge and development activities to translate research into new or improved products, services, processes, or technologies.