PDF Solutions (PDFS): Semiconductor Software Firm Delivers 52% Q2 Return in High-Beta Strategy

Riverwater Partners' Small Cap Strategy Q2 2026 report highlighted PDF Solutions (NASDAQ:PDFS), a semiconductor software provider, which returned approximately 52% in the quarter. The firm, which offers yield analytics and data software for chip manufacturers, saw its long-term strategic holder Advantest exit its entire 8% stake through an oversubscribed secondary offering. Riverwater interpreted this as management taking control, adding a full percentage point to its position while selling Veeco (VECO) to manage semiconductor exposure. Late in the quarter, the strategy trimmed some of the position after the sharp run-up. With a market cap of $1.89 billion, PDFS remains a high-beta play in the semiconductor sector, though 29 hedge funds held shares, reflecting the strategy's willingness to take on higher risk. Riverwater continues to monitor opportunities in AI infrastructure enablers, select consumer companies, and undervalued energy firms.