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46/100
28Buffett
Hygon Information In-Depth Research
Hygon Information is a domestic high-end processor design company, with CPUs providing the cash flow from Xinchuang and localization and DCUs providing upside optionality. 2025 revenue reached 14.377 billion yuan, up 56.92%, but the annual report does not split CPU and DCU revenue, while the static P/E is about 264x, more expensive than NVIDIA. Research rating Hold: CPU provides the floor and DCU provides elasticity, but the valuation has already priced in substantial optimism, with an ideal buy zone of 160-176 yuan.
45/100
SENASIC Electronics Deep Research
SENASIC is an automotive-grade wireless sensing SoC designer, ranked third globally and first in China by 2025 revenue, with an IPO offer price of HKD 18.36 in June 2026 and an expected Main Board listing on June 17. 2025 revenue reached RMB 477.9 million, gross margin rose to 28.0%, and adjusted loss narrowed to RMB 31.88 million, but the offer price implies roughly 12.7 times sales while wBMS is still on the eve of validation and design wins. Rating Watch: TPMS leadership is proven, the wBMS option remains early, and the ideal buy zone is HKD 12-14.
45/100
Shenzhen HQVT Technology In-Depth Research
An intelligent-sensing supplier that uses multispectral sensing hardware to secure scenario entry points and lifts gross margin through large-model services, with its Hong Kong IPO launched in June 2026 at an offer price of HKD 7.20. In 2025, large-model services already contributed more than half of revenue and pushed gross margin to 22.3%, but operating cash outflow widened to RMB 129.9 million, while the IPO price implies about 7.2x sales and about 164x earnings. Research rating Watch: the business upgrade is real, the current price offers no margin of safety, and the ideal buy zone is HKD 4.0-4.8.
44/100
LDROBOT In-Depth Research
LDROBOT supplies visual perception modules to service robot makers while selling its own branded robotic lawn mowers overseas, with 2025 revenue of about RMB 748 million. Newly listed on the Hong Kong Stock Exchange in May 2026, it now trades at roughly 15.7x sales, far above perception peers at 5-6x, meaning the market is already discounting delivery two years out. Research rating Watch: the dual-engine business has potential, but the current price offers no margin of safety, with an ideal buy zone of HKD 16-18.
47/100
Tesla Deep-Dive Research
Tesla is a platform company with electric vehicles as its cash-flow base, layered with energy storage, the charging network, and autonomous-driving/robotics options. In 2025, energy revenue grew 27% and became a second growth curve, but automotive revenue fell 10%, profits leaned heavily on policy benefits, and the market has already priced in autonomous-driving success ahead of proof. Research rating Hold: a good company, but the current price of USD 396.68 discounts too much unverified long-term expectation.
47/100
Tesla Value Investment Research
A manufacturing and platform company built on electric vehicles, with energy storage and software subscriptions layered on top. Its moat in brand, direct sales, and the Supercharger network remains real, but 2025 net income was only $3.794 billion, and a $1.4 trillion market cap implies more than 360x trailing earnings, so the stock is priced for the Robotaxi and robotics endgame. Rating Watch: an excellent business at an expensive price, with a need to wait for a sufficient margin of safety.
46/100
Coupang (CPNG.US) Zen Horizon Research Report
Coupang is South Korea's largest e-commerce platform, built around its Rocket Delivery first-party logistics moat, with more than 14 million Rocket WOW paid members. The core thesis is that Product Commerce remains a strong cash-generating base, while Eats, Play, fintech, Farfetch, and Taiwan expansion add optionality but also investment drag after a major customer data incident. Research rating Watch: a durable logistics compounder, but the 34 million-customer data incident, Q1 2026 operating loss, margin deleveraging, and Naver/Temu competition leave earnings visibility too low for a buy rating.
55/100
38Buffett
argenx（ARGX.US / ARGX.BR）：Zen Horizon レポート
argenx は希少自己免疫疾患の抗体医薬で世界をリードし、FcRn 阻害薬という領域を最初に切り開いたファーストインクラス企業である。中核製品 Vyvgart（efgartigimod）はすでに3適応症（gMG と CIDP が全世界、ITP は日本）で承認され、投与患者は約19000人、FY2025 の製品売上高は41.5億ドル（+90%）、営業利益は初の黒字となる10.5億ドルを計上した。Vision 2030 は患者50000人・ラベル10件・第III相分子5件を掲げる。レーティングはウォッチ：資産としての質は本物だが、882.41ドルという株価はすでに順調な実行を織り込んでおり、720ドル以下への調整が出て初めてエントリーの窓が開く。
37/100
A Long-Term Business Owner's Research Report on National Silicon Industry Group
National Silicon Industry Group is the mainland China leader in domestic substitution for semiconductor wafers, with core products spanning 300mm, 200mm and smaller polished wafers, epitaxial wafers, and SOI wafers for domestic fabs. Revenue reached a post-listing high of about RMB 3.7 billion in 2025, but gross margins in both the 300mm and 200mm wafer businesses remained negative, the company posted losses for two straight years, operating cash flow was RMB -559 million, and it remains in a phase of capacity ramp-up and repeated equity financing. Research rating Watch: an important strategic materials company worth tracking, but not yet a mature cash-flow asset with a compelling margin of safety.
42/100
A Long-Term Owner's View of Huate Gas
Huate Gas is a leading Chinese domestic-substitution player in electronic specialty gases, supplying high-purity specialty gases and gas equipment for semiconductor and display manufacturing. The core thesis is that the company benefits from domestic substitution and fab/display capacity expansion, but 2025 revenue rose only 1.7%, net profit attributable to shareholders fell about 27% to RMB 135 million, the static P/E is about 163x, and margins plus capital returns are being eroded by price competition, capacity ramp-up, and depreciation. Report rating Watch: a capable domestic substitute in a promising niche, but the current valuation leaves little room for owner-oriented returns.
38/100
GlobalWafers Deep Value Investment Research
GlobalWafers is the world's third-largest supplier of semiconductor silicon wafers, focused on 300mm/200mm polished and epitaxial wafers for global wafer fabs. After its 2020 attempt to acquire Germany's Siltronic fell through, the company shifted toward building out global capacity itself, and by 2025 revenue was about NT$60.6 billion while profitability weakened as gross margin fell from 43% to 24%. Research rating Watch: a strategically important cyclical materials asset, but the current price does not offer enough margin of safety.
52/100
Disco: A Long-Term Business Owner's View
Disco is Japan's leading back-end semiconductor equipment maker, specializing in the three high-precision, mission-critical steps of wafer dicing, grinding, and polishing, with an integrated equipment-plus-consumables-plus-service model that benefits deeply from AI/HBM and advanced packaging demand. FY2025 net profit was roughly 135.5 billion yen, overseas sales made up 87.6% of the total, the balance sheet carries long-term net cash, gross margins are exceptionally high, and management runs the business against a four-year RORA discipline. Rating Watch: a superb business whose current price already prepays years of high-growth, high-margin, AI-driven expectations, leaving little margin of safety.
45/100
80Buffett
Chroma ATE Value Investment Deep-Dive
Chroma ATE is Taiwan's leading test and measurement equipment company, with core businesses in semiconductor testing, power electronics testing for EVs, energy storage and power supplies, and automated optical inspection equipment. Q1 2026 revenue grew 73% year over year and May revenue grew 133% year over year, but 2025 reported profit included a large one-off capital gain, leaving true owner earnings at roughly NT$4.3 billion after adjustment. Rating Avoid: a strong business is being priced as if years of high growth are already guaranteed, leaving almost no margin of safety.
43/100
67Buffett
Lenovo Group (0992.HK) Zen Horizon Framework Deep-Dive Research
Lenovo Group is the world's largest personal computer (PC) vendor, ranking first by IDC's 2026 Q1 share at 25.2%, and its Hybrid AI strategy spans three business groups: Intelligent Devices Group (IDG, about 70% of revenue), Infrastructure Solutions Group (ISG, AI server business), and Solutions and Services Group (SSG). FY2025/26 revenue, through March 2026, reached a record USD 83.1 billion, up 20.3%, with AI-related revenue doubling to 33% of the group, ISG turning profitable for the first full year, and the company ending the year in a net cash position. Research rating Watch: a good asset with a sound balance sheet, but 2026 PC-market headwinds, thin AI-server margins, and sell-side consensus targets below the current price leave a negative margin of safety.
48/100
63Buffett
Siemens AG (SIE.XETRA) Zen Horizon Research Report
Siemens AG is a global leader in industrial automation and digitalization, headquartered in Munich and primarily listed on Xetra, with four engines: Digital Industries, Smart Infrastructure, Mobility, and a roughly 67% stake in Siemens Healthineers that is now moving toward deconsolidation. The core thesis is that Siemens has a rare full-stack industrial technology moat and direct exposure to AI data-center electrification, but FY2025 net income included a one-off Innomotics gain and valuation is no longer cheap at a TTM PE of 27.7x. Research rating Watch: wait for clearer evidence of a DI cycle recovery, durable SI data-center orders, and Altair/Dotmatics synergies before moving into a buy range.
48/100
Prysmian Group (PRY.MI) Zen Horizon Research Report
Prysmian Group is the global leader in power cables and systems, primarily listed on Euronext Milan and spanning submarine/underground high-voltage transmission, power grids, electrification including industrial and construction, specialty cables, and digital solutions for data centers and fiber. FY2025 revenue reached €19.65B (+15.4% nominal / +5.4% organic), net profit attributable to shareholders was €1.27B (+74%, including roughly €346M of one-off gains from the YOFC stake sale), Adj EBITDA was €2.40B at a 14.2% margin on standard metal prices, Transmission delivered a full-year 18.3% margin ahead of its 2028 target with backlog above €17B, and the 2024 USD 4.2B Encore Wire acquisition strengthened North America. Research rating Watch: a high-quality leader with powerful long-term drivers, but current valuation already prices in much of the good news.
55/100
34Buffett
Sea Limited（SE.US）Zen Horizonレポート
Sea Limitedはシンガポールに本社を置きNYSEに上場する東南アジア最大のインターネットプラットフォームで、Shopee（Eコマース）、Monee（デジタル金融）、Garena（ゲーム、Free Fire）の三エンジンを並走させている。FY2025は売上高229億米ドル（+36%）、GAAP純利益16億米ドル（+260%）と初めて本格的な規模での黒字化を達成し、Shopeeは東南アジアGMVの約53%を握って全6市場で首位、Moneeの貸付残高は1年で71%増の99億米ドルに達した。2026年Q1の売上高は+47%へさらに加速したものの、GAAP EPS 0.67は市場予想を下回り、株価は52週高値199から約84へ半減した。レーティングはウォッチ——ファンダメンタルズが強く妥当に評価されたコンパウンダーであり、上値余地はQ2/Q3で利益の質の持続を確認できるかにかかっている。
42/100
49Buffett
SÜSS MicroTec (SMHN): A Niche Winner in Advanced Packaging Equipment, Good Company at a Bad Price
SÜSS MicroTec is a Germany-listed semiconductor equipment company focused on temporary bonding and debonding, UV exposure, coating and development tools for advanced packaging, plus photomask cleaning and handling systems. The core thesis is that AI chips and HBM create real long-term demand for its Advanced Backend Solutions business, but 2025's record €503.2 million in sales came with negative free cash flow and management defines 2026 as a transition year. Rating Watch: a quality cyclical business with credible niche barriers, but the current price already discounts too much future success.
41/100
JSR (4185.TSE): A Leading Semiconductor Materials Company in Delisting Restructuring
JSR is a leading Japanese semiconductor materials company focused on key chipmaking materials such as photoresists, CMP slurry, and cleaning solutions, with the world's top share in ArF photoresists. The core thesis is that its electronic materials franchise is high quality, but the group is delisted, still restructuring, and burdened by weaker life sciences assets and a heavier balance sheet. Rating Watch: a potentially valuable restructuring case to track, but not an executable public-market buy today.
43/100
DeepSeek: a technically strong AI model company, with valuation already pricing in too much
DeepSeek is a frontier Chinese AI model company founded in 2023, building adoption through free Web/App access, metered API monetization, and an open-source model ecosystem. Its latest DeepSeek-V4 model was released in April 2026, with API pricing far below OpenAI and Anthropic, but the company remains a private business with no publicly audited financials and a latest media-reported post-financing valuation of roughly $52 billion to $59 billion. Rating Avoid: the business is technically impressive, but the current valuation appears to have prepaid an optimistic ten-year outcome without enough verifiable cash-flow evidence.
38/100
Cohu (COHU): A Cyclical Semiconductor Test Equipment Stock with Insufficient Margin of Safety
Cohu is a global supplier of semiconductor test equipment, spanning handlers, test interface consumables, inspection and metrology equipment, and analytics software, with recurring revenue now at roughly 60%. The core thesis is that this is a cyclical equipment business with some aftermarket stickiness, not a high-certainty compounder with a wide moat, and the 2024 and 2025 operating losses show how hard the cycle still hits. Report rating Watch: the company is worth tracking, but the current price leaves too little margin of safety for a balanced, conservative long-term investor.
48/100
45Buffett
AMEC (688012): China's Domestic Etch Equipment Leader, a Great Company at a Rich Price
AMEC is a leading Chinese high-end semiconductor equipment company, anchored in plasma etch tools and expanding into thin-film deposition, MOCVD, and adjacent platforms. Its long-term case is driven by domestic substitution and advanced-node upgrades, with 2025 revenue of about RMB 12.385 billion and net profit attributable to shareholders of about RMB 2.111 billion, but customer concentration is high and R&D spending is roughly 30% of revenue. Report Rating Watch: a valuable business whose current price already discounts a large share of future success.
40/100
Unimicron Technology from a Long-Term Owner's Perspective
Unimicron is a leading Taiwanese PCB and IC substrate manufacturer whose revenue mix has shifted toward high-end ABF substrates and HDI. The core thesis is that AI server demand may lift the cycle, but heavy capex, volatile margins, and weak free cash flow make the current price hard to justify. Research rating Avoid: a capable cyclical manufacturer, but the valuation leaves no acceptable margin of safety.
43/100
Long-Term Value Research on Murata Manufacturing
Murata Manufacturing is one of the world's largest electronic passive-component companies, centered on MLCC ceramic capacitors and inductors across communications, automotive, computers, and other applications. The core thesis is that AI and server demand is lifting capacitor orders, while FY2026 revenue of JPY 1,830.9 billion, a 15.4% operating margin, and roughly JPY 597.9 billion of net cash make Murata a hidden champion in passive components, though valuation is demanding. Research rating Watch: a high-quality business, but current pricing leaves no conservative margin of safety.