PDF Solutions (PDFS): A Semiconductor Software Winner Returned 52% in Q2

PDF Solutions (PDFS): A Semiconductor Software Winner Returned 52% in Q2

Mon, August 31, 2026 at 6:48 PM GMT+3 3 min read

• PDFS -1.04%
• ^RUT -0.79%

Riverwater Partners, an investment management company, released its 'Small Cap Strategy' Q2 2026 investor letter. The letter can be downloaded here. The Small Cap Strategy underperformed the Russell 2000 in the second quarter as the benchmark experienced one of its strongest risk-on rallies in recent memory, although the strategy remained ahead year-to-date. The quarter was defined by accelerating AI investment, energy market disruptions, and renewed investor appetite for higher-beta stocks, creating headwinds for the firm's quality-focused approach and healthcare positioning. Despite this, stock selection contributed positively in energy, materials, and financials, while healthcare and consumer discretionary detracted due to the fund's disciplined avoidance of speculative businesses. Looking ahead, the firm remains cautiously optimistic, focusing on opportunities created by market dislocations, including AI infrastructure enablers, select consumer companies, healthcare innovators, and energy businesses trading below intrinsic value. The strategy continues to emphasize high-quality companies with strong management teams and attractive valuations, positioning the portfolio for a potential rotation away from speculative market leadership. In addition, please check the Strategy's top five holdings to know its best picks in 2026.

In its second-quarter 2026 investor letter, Riverwater Partners Small Cap Strategy highlighted PDF Solutions, Inc. (NASDAQ:PDFS). PDF Solutions, Inc. (NASDAQ:PDFS) provides proprietary software, physical intellectual property for integrated circuit designs, electrical measurement hardware tools, proven methodologies, and professional services. On August 28, 2026, PDF Solutions, Inc. (NASDAQ:PDFS) closed at $44.81 per share. One-month return of PDF Solutions, Inc. (NASDAQ:PDFS) was -7.31% and its shares gained 117.56% over the past 52 weeks. PDF Solutions, Inc. (NASDAQ:PDFS) has a market capitalization of $1.89 billion.

Riverwater Partners Small Cap Strategy stated the following regarding PDF Solutions, Inc. (NASDAQ:PDFS) in its Q2 2026 investor letter:

"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..." (Click here to read the full text)

PDF Solutions, Inc. (NASDAQ:PDFS) is not on our list of the 40 Most Popular Stocks Among Hedge Funds. As per our database, 29 hedge fund portfolios held PDF Solutions, Inc. (NASDAQ:PDFS) at the end of the second quarter which was 18 in the previous quarter. While we acknowledge the potential of PDF Solutions, Inc. (NASDAQ:PDFS) as an investment, we believe certain AI stocks offer greater upside potential and carry less downside risk. If you're looking for an extremely undervalued AI stock that also stands to benefit significantly from Trump-era tariffs and the onshoring trend, see our free report on the best short-term AI stock.

In another article, we covered PDF Solutions, Inc. (NASDAQ:PDFS) and shared a list of oversold growth stocks to invest in. In addition, please check out our hedge fund investor letters Q2 2026 page for more investor letters from hedge funds and other leading investors.

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Disclosure: None. This article is originally published at Insider Monkey.