Bel Fuse Inc. Class B (BELFB)

Bel Fuse, Inc. (BELFB) stock has experienced significant growth, increasing by 309.88% over the last 12 months and 75.66% year-to-date as of May 9, 2026. Key events include a Q4 2025 earnings miss due to a GAAP net loss, the acquisition of dataMate for $16 million, an organizational realignment into two end-market-focused business units, a strong Q1 2026 earnings beat driven by robust bookings, analyst upgrades, insider selling in February 2026, and institutional accumulation in Q4 2025.

Bel Fuse, Inc. experiences demand seasonality, particularly in the second half of the year, attributed to a slowdown in Europe during the summer months and various holidays. Despite these seasonal factors, the company expected a healthy second half of 2026 with continued strength, as stated in its Q1 2026 earnings call.

Bel Fuse, Inc. designs, manufactures, markets, and sells products that power, protect, and connect electronic circuits, operating within the Technology sector and the Electronic Components industry. Its product portfolio includes Power Solutions and Protection, Connectivity Solutions, and Magnetic Solutions. These products serve various end markets, including networking, telecommunications, computing, general industrial, high-speed data transmission, defense, commercial aerospace, transportation, e-Mobility, medical, broadcasting, automotive, and consumer electronics industries.

Bel Fuse, Inc. has a global presence with operations across the Americas, Europe, and the Asia-Pacific region. It sells its products through direct strategic account managers, regional sales managers, and authorized distributors in North America, Europe, the Middle East, and Asia. Its geographical segments include the United States, Macao, United Kingdom, Slovakia, Germany, and Switzerland, with the majority of revenue derived from the United States.

Bel Fuse, Inc. has maintained a positive brand reputation, being named one of America's Most Successful Small-Cap Companies by Forbes in 2026, ranking #55. This recognition highlighted the company's revenue growth, profitability, stock performance, innovation, operational excellence, and shareholder value.

Bel Fuse Inc. has a diverse ownership structure, with institutional investors holding a significant portion of the company's stock. Major institutional owners include Vanguard Group Inc., BlackRock, Inc., and Price T Rowe Associates Inc. The largest individual shareholder is Daniel Bernstein. Insiders collectively own approximately 0.57% of the stock, while the general public and retail investors hold a substantial stake.