Fundamentally, the licensing leg rests on trade cases still in flight. A second case is under investigation with a final determination expected in 2027 that we expect will produce a second exclusion order — and the CEO hinted at a third, 'there is no two without three.' Royalties are described as very high margin; the vision is that hyperscalers and equipment makers largely become licensees. To be clear, guidance assumes no new licensing agreements until that 2027 determination. Whether the enforcement campaign keeps succeeding is the unresolved question the licensing story turns on.
Let me be precise about what we are. We make the modular power that delivers thousands of amps at under a volt into an AI processor, straight up through the board - vertical power delivery - and we license the patents behind it. Last year revenue was $407.7 million, up 13.5%, though that net income line is flattered by a one-time settlement and a tax benefit; the underlying operating income was $81.8 million. The real signal is the order book: backlog jumped 70% in one quarter to $300.6 million, book-to-bill above 2. Fundamentally, we're nearly sold out, which lets us be selective. And to be clear about the concentration underneath that: one customer was 11.1% of last year's revenue, and the filings do not name it. On the call the lead computing customer is described as ramping a wafer-scale engine - which points at Cerebras - but that is an inference, not a disclosed name. I'll say what the record says and not a word past it.
Fundamentally, the filings disclose that one customer accounted for 11.1% of last year's revenue (12.1% and 10.7% in the two prior years) without naming it. To be clear, on the call sales leadership described a “lead computing customer” ramping a wafer‑scale engine and referenced Cerebras and other wafer‑scale firms, leading analysts to infer the lead customer is Cerebras—but that inference is not disclosed. Management declined to break out the backlog share, noting the customer is important but not the only major one.
Fundamentally, one-year backlog rose 70% in a single quarter to $300.6 million, book-to-bill above 2. Quarterly revenue $113 million, up 5.3% sequentially, 20.2% year over year; gross margin expanded 800 basis points to 55.2%. Guidance calls for nearly $126 million next quarter, nearly $570 million for 2026 — and to be clear, that number is built on conservative licensing assumptions: no new agreements before the second trade case determination in 2027. Management notes a deal could close ahead of that; we chose to leave the upside out. The inflection is real, the hedge travels with it.
Fundamentally, the filings disclose one customer at 11.1% of last year's revenue — 12.1% and 10.7% the two prior years — without naming it. On the call we described the lead computing customer ramping a wafer-scale engine and referenced wafer-scale companies; analysts infer that lead customer is Cerebras, but that is an inference, not a disclosed name. To be clear, if the inference holds, concentration sharpens on a single AI-accelerator vendor. We declined to break out how much backlog that customer represents, saying only it is important but not the only major one.
Fundamentally, last year's headline net income of $118.6 million looks like an enormous jump, but two one-time items flatter it. A $45 million patent settlement we paid out — we were the defendant, so the money went out — and a $24 million tax benefit from reversing a valuation allowance. Strip both and underlying operating income was $81.8 million, against a small operating loss the year before. Revenue up 13.5% to $407.7 million, gross margin restored. The recovery is real, but the right way to read the profit line is as a cyclical recovery off a weak base, not steady-state earning power.
Fundamentally, at 2,000-plus amps and 0.6 volts, one milliohm of trace resistance dissipates roughly a kilowatt — forcing the converter under the package, current flowing up vertically. Our second-gen part: 3 A/mm², up to 40x current multiplication, 1.5 mm thin. You judge all three together, not one alone. To be clear, vertical-power modules aren't Vicor-only — Empower, Infineon, ADI, TDK, Flex supply them. The claimed edge is at the highest current-density loads, where we say our approach meets the requirement. Whether rivals close that gap at the frontier remains an open question.