The Few Bets That Matter
Concentrated Equity Investor, AI Infrastructure
Silicom's existing designs are still ramping, so FY27 should be strong even from today's wins, though more design wins are needed. A roughly flat sequential Q4 guide does not make the quarter poor: Silicom posted a double beat, raised guidance and is close to profitability. It has tailwinds beyond its partial AI exposure at about 3x sales, but the market remains unmoved. x.com x.com x.comÂ
Silicom is becoming a go-to supplier for cybersecurity firms rebuilding their infrastructure for AI, which should drive another guidance increase. It won a new $5M+ a year design win with a tier-1 cloud cybersecurity player for a 5G networking device, with initial orders already placed for FY26. That is its eighth design win of 2026 against guidance of nine. A GPU edge device under evaluation would be a much larger AI opportunity. At about 3x sales, the dynamic is strong. x.comÂ
Silicom's 58% year-over-year revenue growth is what drove the stock, and the next leg depends on that revenue turning into earnings. It still loses money, with a -20% operating margin last fiscal year, so the margin line now decides the case. The earlier view rested on 3.4 times sales on 33% growth, its first AI inference production order and a blue-chip design win. x.comÂ
Silicom is a recovering custom-networking supplier with real but early option value in AI inference networking, post-quantum cryptography and white-label switching. 2025 revenue rose to $61.9m, Q4 grew 17% and Q1 2026 guidance implies about 18% growth; it won 8 design wins in 2025 and targets 7-9 in 2026, several worth $1m-$10m a year. It runs at ~41% of 2022 revenue and loses money, and inventory at 84% of revenue risks write-downs. With ~$74m of cash and securities and no debt, EV is ~$69m. … Show more
Silicom is still early on an AI inference ramp that could lift both revenue and margins. Conversion of an H2 2026 proof of concept at a Tier 1 hyperscaler would bring tens of thousands of FPGA inference cards, shifting mix toward higher-margin product and lifting gross margin from a depressed 30% toward the 2022 peak of 34%. Cash plus working capital covers about half the market cap, bounding the bear case, and the probability-weighted value is $85 against a $38 share price, about 2.23x. x.com … Show more
Silicom adds quantum-security exposure, and the positive news looked like a good buying opportunity. Per the FT, a customer selected a Silicom FPGA SmartNIC after evaluating an off-the-shelf product that showed the performance and reliability needed for its advanced encryption, including post-quantum cryptography. x.comÂ
