Bel Fuse Stock

Bel Fuse Rule of 40

The Rule of 40 of Bel Fuse (BELFA) as of Aug 22, 2026 is 42.56 %. In the previous year, Rule of 40 was -4.39 % — a change of -1,069.10% (higher).

Rule of 40

42.56 %

YoY

-1,069.10%

Last updated:

Rule of 40 of Bel Fuse is 2026 42.56 % . Rule of 40 of Bel Fuse was 2025 -4.39 % . It decreases by -1,069.10% higher compared to the previous year.

The Bel Fuse Rule of 40 history

  • 3 Years

  • 10 Years

  • 25 Years

  • Max

Rule of 40
Date
Rule of 40
Jan 1, 2018
16.91 USD
Jan 1, 2019
-8.58 USD
Jan 1, 2020
-1.40 USD
Jan 1, 2021
22.44 USD
Jan 1, 2022
30.33 USD
Jan 1, 2023
11.55 USD
Jan 1, 2024
-4.39 USD
Jan 1, 2025
42.56 USD
The Bel Fuse Rule of 40 history
YEARRule of 40YoY
42.56 %-1,069.10%
-4.39 %-138.03%
11.55 %-61.94%
30.33 %+35.19%
22.44 %-1,699.81%
-1.40 %-83.66%
-8.58 %-150.76%
16.91 %+429.99%
3.19 %-111.83%
-26.98 %-225.65%
21.47 %
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Bel Fuse Stock analysis

What does Bel Fuse do? Bel Fuse Inc. is a global company based in the USA, in Jersey City, New Jersey. Since 1949, the company has been manufacturing and distributing electromechanical products, network components, and power supplies. Bel Fuse focuses on developing and manufacturing reliable and high-quality products that can be used in various industries, such as telecommunications, aviation, medical, industry, and automotive. The company was founded by three brothers, Aaron, Irving, and Julius Belzberg. Initially, the company only produced electromagnets used in the aviation industry. Over the years, the company expanded its product range and began producing network components and power supplies. Today, Bel Fuse is an internationally operating company. In addition to the headquarters in Jersey City, the company has branches in Asia, Europe, and Latin America. Bel Fuse is listed on the NASDAQ stock exchange and has a market capitalization of around $180 million. Bel Fuse's business model is based on the manufacturing and selling of electromechanical products, network components, and power supplies. The company develops and produces a wide range of products used in many different industries. The company focuses on high quality and reliability of its products to meet the needs of its customers. Bel Fuse is divided into three divisions: "Bel Connectivity Solutions," "Bel Power Solutions," and "Bel Magnetic Solutions." Bel Connectivity Solutions manufactures network and connectivity components used in the telecommunications and data transmission industry. The product range includes connectors, Ethernet switches, modems, and routers used in data centers, telecommunications applications, and other applications. Bel Power Solutions offers a wide range of power supplies and energy products. The company manufactures highly efficient power supplies, battery chargers, and DC/DC converters that can be used in various applications, such as industry, medical, aviation, and automotive industry. Bel Magnetic Solutions produces electromechanical components such as transformers, inductors, and chokes. These components are used in many different applications, such as aviation, automotive industry, medical technology, and building controls. Bel Fuse is a leading provider of electromechanical products, network components, and power supplies. The company has a global presence and can serve its customers worldwide. Bel Fuse has a strong track record in the development and production of reliable and high-quality products at competitive prices. Bel Fuse is one of the most popular companies on Eulerpool.

Frequently Asked Questions about Bel Fuse stock

Rule of 40 of Bel Fuse is 42.56 % in 2026.

On Eulerpool you can find the complete historical development of Rule of 40 Bel Fuse since 2006 – with annual values, charts, and detailed analysis.

The Rule of 40 states that a company's revenue growth rate plus profit margin should exceed 40%. It is widely used to evaluate SaaS and high-growth companies.

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Quality — Bel Fuse

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