BEL FUSE INC /NJ (BELFA) stock intrinsic value fair value estimate & owner earnings analysis

Bel Fuse designs and makes electronic components in three product groups: magnetic products (network transformers and modules used in Ethernet and data-center equipment), power solutions and circuit protection (power supplies and converters for networking, defense and industrial customers), and connectivity products (rugged connectors and cable assemblies for aerospace, defense, rail and commercial uses). It also owns 80% of Enercon, an Israeli maker of power products for military and aerospace customers, bought in November 2024 for about $320 million plus up to $10 million of earn-outs; the company intends to buy the other 20% by early 2027. The company has two share classes, voting Class A and non-voting Class B, with the same claim on the business (Class B receives a dividend at least 5% higher). All values below are per share of the combined equity and apply to both classes. HOW WE MEASURE EARNINGS. We start from cash generated by operations, strip out swings in receivables, inventory and payables that only shift timing, subtract the cost of stock paid to employees, and subtract the part of capital spending needed just to stay in business (growth spending is not charged against the earnings). On that basis the business produced owner earnings of about $91 million in 2025, $49 million in 2024, $68 million in 2023 and $55 million in 2022, versus only $2 million to $45 million a year from 2016 to 2021. Cash earnings are genuinely cyclical. Working capital absorbed $27 million in 2025 and $36 million in 2021 and released $24 million in 2023; we remove those swings so inventory build-ups and unwinds do not distort the picture. Because earlier figures on this company were calculated differently, they are not comparable with ours. Because the company repaid all of its borrowings in 2026, we value the business before interest and then subtract what it owes, which is now nothing. Adding interest back, the business's cash flow was about $55 million in 2024 and $106 million in 2025. OUR NORMAL LEVEL. We measure the business from the Enercon deal onward, which gives one weak year and one strong year: 2024, when networking and power customers worked off inventory (magnetics sales fell 40%, power sales 22%, total sales 16%), and 2025, the first full year with Enercon and a networking recovery. The midpoint, about $80 million a year, is the normal level we use. The first half of 2026 (sales of $389 million, up 21%; gross margin 39.5%; roughly $60 million of cash flow on the same basis) is running well above that, and the order backlog was $452 million at the end of January 2026 against $388 million a year earlier, with 80% to 85% expected to ship in 2026. That supports the near term, but part of the surge comes from one large networking customer, and a cyclical business showing one strong stretch is not yet a new normal, so we have not raised the normal level. GROWTH. In 2025 business cash flow roughly doubled (up about 92%). Our middle case assumes the first year is about 5% below 2025, not above it, then steps down to the normal level. We credit no growth beyond that. Backlog covers only about half of a year of sales and says nothing about later years. Bel's growth has come mostly from acquisitions, including a large debt-funded one (Enercon), and some have been written off ($106 million of goodwill and intangibles in 2016, an $8.9 million goodwill write-down in 2019, a $13 million write-off of the innolectric investment in 2025). That is not a steady, repeatable, small-step process, so none of it is credited. Bel also carries about $218 million of acquired intangible assets amortising at roughly $15 million a year. Amortisation is a non-cash charge and is added back, but it signals that acquired customer relationships wear out, so we let the earnings fade after year 10 rather than continue indefinitely. Sales fell from $567 million in 2015 to $466 million in 2020, which shows the fade is real when reinvestment lags. THE CASES. Each case values the business first and then subtracts what it owes. Cash of $306 million at June 30, 2026 (after a May 2026 issue of 1.725 million Class B shares at $266 raised about $442 million, $197.5 million of which repaid all borrowings) is counted as spare beyond about $50 million the business needs to run. The Enercon minority stake (carried at $102.6 million, up from $80.6 million at the end of 2024, plus up to $5 million of 2026 earn-out) is subtracted. About 14.5 million diluted shares are outstanding after the offering. Middle case, $90 per share: the business produces about $100 million in year one (in line with 2025 and the first-half 2026 pace), $90 million in year two, then $80 million a year through year ten, then declines 2% a year as acquired products and relationships age. Business worth about $1,164 million; it owes nothing in borrowings; net cash after the Enercon minority is about +$148 million; equity about $1,312 million, or about $90 a share. Downside case, $53 per share: the business has had two real downturns in the filings. In 2024 magnetics sales fell 40% on networking inventory correction, and in 2016 to 2020 the whole business earned only about 5% of sales in cash (about $26 million a year on roughly $500 million of sales, 1.4% in 2019). The downside case has year one at $85 million, a 2024-style correction plus Israel-related disruption at Enercon (the filing names regional conflict as a risk) and a loss of the large networking customer's orders taking year two to $45 million, a trough of $35 million in year three (about 4.7% of $750 million of sales, in line with 2016 to 2020), $40 million and $50 million in years four and five, then $55 million a year to year ten, then declining 4% a year. It also assumes $60 million of the spare cash is wasted on an acquisition that does not work, as with innolectric and the 2016 write-downs. Business worth about $687 million; it owes nothing in borrowings; net cash after the Enercon minority is about +$88 million; equity about $775 million, or about $53 a share. The company has no debt maturities to refinance, so the downside is a lower value, not a threat to survival. Upside case, $128 per share: the business holds the first-half 2026 pace, $120 million in years one and two and $115 million in years three to five, has one correction year at $85 million in year six (the same size as the 2024 dip), then recovers to $100 million and $115 million through year ten before declining 1% a year. Business worth about $1,733 million; it owes nothing in borrowings; net cash after a higher $130 million Enercon minority payout is about +$126 million; equity about $1,859 million, or about $128 a share. We left out any further growth from AI-driven networking, new defense awards or acquisitions because none is contracted or part of a steady record. WHAT WOULD MAKE THIS WRONG. Stock compensation is rising (about $5.1 million in the first half of 2026 against $6.8 million in all of 2025), which lowers owner earnings by perhaps $5 million a year relative to our normal level. The Enercon minority stake is valued by formula and has been rising; every $50 million more it costs is about $3.50 a share. Spare cash used on poor acquisitions would lower value. Magnetics are made in China, exposing margins to wages, exchange rates and tariffs, and Enercon operates in Israel. On the other side, if first-half profitability proves lasting, the upside case is closer than the middle case. An earlier estimate of ours was prepared on a different basis and is not comparable. HOW WE SET THE MARGIN-OF-SAFETY PRICE. We are fairly sure of the recent pace (first-half cash flow and a $452 million backlog) but not of what is normal for this company: its cash earnings have ranged from $2 million to $91 million in ten years and a good part of the recent jump rides on networking demand and one large customer. The worst plausible outcome is a 2024-style inventory correction on top of the thin 2016 to 2020 margins, a failed acquisition using the new cash, and disruption at Enercon. The company has no borrowings and $306 million of cash, so it would survive that comfortably; the risk is a lower value, not a failed business. If we are wrong about the three things we are most likely to be wrong about (whether first-half profitability lasts, the final cost of the Enercon minority stake, and what is done with roughly $250 million of spare cash), the shares are worth about the downside value or somewhat less. The price assumes a holding period of three to five years. The business pays almost nothing over that period (dividends of about $3 million a year in total), so the implied return comes from cash building inside the company, and that only counts if it is not wasted. The margin-of-safety price is $52. That price sits just below the downside value, and if the middle case plays out with cash accumulating, the middle case implies 20% a year over four years; a faster recognition of value would imply more.