Institutional ticker directory tracking stock mentions, long/short ideas, and high-conviction pitches extracted from quarterly hedge fund letters.
| Ticker | Company | Sector | Industry | Pitches | Stance |
|---|---|---|---|---|---|
| Fund / Manager | Thesis Excerpt | Stance | Period / Date | Action |
|---|---|---|---|---|
Meridian Contrarian Fund ArrowMark Partners | “PDF Solutions, Inc. is a data analytics company serving the semiconductor industry through a proprietary combination of software, hardware, and services. The company's platforms deliver manufacturing analytics to fabs, fabless designers, equipment makers, and test companies, enabling customers to substantially improve production yields and reduce development costs. PDFS underwent a significant business model transformation around 2019, leveraging AI to convert decades of consulting expertise into scalable, recurring software products — a transition that meaningfully improved the company's long-term economics. A subsequent earnings decline in late 2023 and early 2024, driven by a cyclical end market downturn and investment spending on a new inspection product, created an attractive entry point. We invested based on our view that PDFS's yield improvement tools will become increasingly valuable as semiconductor complexity and development costs continue to rise — a structural tailwind that we believe is still in its early stages. PDFS delivered strong results during the quarter, with positive earnings complemented by broad market enthusiasm for the semiconductor sector. We trimmed our position into strength consistent with our standard risk management discipline but remain investors based on our positive view of the company's long-term growth outlook.” | NEUTRAL | Q2 2026 Sep 2, 2026 | View Pitch |
Riverwater Partners Small Cap Strategy Nathan Fredrick, CFA | “PDF Solutions, a provider of yield analytics and data software for semiconductor manufacturers, returned approximately 52% in the quarter. During May, long-time strategic holder Advantest exited its entire 8% stake through an upsized secondary offering, with PDF selling additional shares alongside to fund general corporate purposes and potential debt reduction. We interpreted the heavily oversubscribed deal as a sign of management taking control of its own destiny, and we used the offering-related weakness to add a full percentage point to the position, funded by a sale of Veeco (VECO) to keep our overall semiconductor exposure in check. Late in the quarter we trimmed a portion of the position after the sharp run, consistent with our practice of harvesting gains in extended semiconductor names. Founded in 1991, PDF Solutions (PDFS) enables the digital transformation of semiconductor manufacturing. Its solutions generate and integrate data across the supply chain. Today, by incorporating AI, they also drive fast improvements in yield, quality, and efficiency. The complexity of the semiconductor supply chain has intensified over the years due to technological advances and global expansion. PDFS's solutions address key manufacturing and R&D challenges: Innovations in 3D semiconductor architecture, Increased complexity of chips in the wafer fab and assembly, Systems providers rather than components makers. PDFS's software applications connect the physical world of semiconductor manufacturing with the digital world of design, planning, tracking, monitoring, reporting, etc. In fact, PDFS's software resides on most semiconductor manufacturing equipment today. Its innovative solutions enable its customers to enhance yield and time-to-market, the two main goals of semiconductor manufacturing, which aims to serve ever-changing and fast-growing markets with high capital intensity. PDFS continues to be founder-led: Kimon Michaels, Ph.D., Executive VP, Products and Solutions, Director, and Co-Founder, has served as Vice President of Products and Solutions since July 2010. He remains the technology visionary of the company. John K. Kibarian, Ph.D., President, Chief Executive Officer, Director, and Co-Founder has served as President since November 1991 and has served as Chief Executive Officer since July 2000. He and Adnan Raza, Executive VP, Finance and Chief Financial Officer, who joined PDFS in Jan 2020, run the business. From a financial perspective, PDFS has experienced and should continue to experience TAM expansion as its solutions bring efficiency to semiconductor manufacturing. Operating model improvement should follow as recurring software revenue expands gross and operating margins. We expect 20% revenue growth with earnings growth of 20-25%. PDFS traded at 25X earnings and 6X revenue at purchase, a reasonable valuation for a high ROIC recurring revenue business growing at >20%/year. PDFS has a strong handprint. Its solutions bring efficiency to a capital-intensive business that consumes a lot of energy and water. The efficiency brought to manufacturing has the potential to reduce the negative footprint of the semiconductor business. PDFS does not have a significant environmental footprint, given it is primarily a developer of software. The company's human capital is its greatest asset, making its UNGP-aligned human rights policy an important protector of its safe, inclusive, respectful, and equitable corporate culture. The company has a strong employee engagement and development program. Importantly, PDFS has a robust cybersecurity risk management program, overseen by its Board.” | NEUTRAL | Q2 2026 Jul 17, 2026 | View Pitch |
Each excerpt above is the manager's commentary on this ticker specifically. The full letter has the rest of their portfolio thinking, risk discussion, and broader institutional context.