ACM Research Stock Surges 68% YoY: Why Seldon Capital's New Position Signals Institutional Confidence

The Business Case Behind the Investment

ACM Research (NASDAQ: ACMR) has emerged as a standout performer in semiconductor manufacturing equipment, and institutional investors are taking notice. As of November 14, 2025, the company’s stock reached $31.51 per share with a market capitalization of $2.12 billion, reflecting robust confidence in its market position and growth trajectory.

The company specializes in single-wafer wet cleaning and electro-chemical plating systems for semiconductor production. Its proprietary technologies, including space alternated phase shift and timely energized bubble oscillation systems, have established ACM Research as a critical supplier to integrated circuit manufacturers worldwide. This specialized focus positions the company uniquely within the competitive semiconductor equipment landscape.

Strong Financial Performance Drives Stock Appreciation

The numbers tell a compelling story about ACM Research’s operational strength. For the trailing twelve months (TTM), the company generated $880.35 million in revenue and posted $117.11 million in net income, demonstrating both scale and profitability in a capital-intensive industry.

In the third quarter of 2025, ACM Research delivered particularly impressive results. Sales climbed 32% year-over-year to $269.2 million, significantly outpacing industry norms. For full-year 2025, management guided to revenue between $875 million and $925 million, representing substantial growth compared to 2024’s $782.1 million in revenue.

Earnings have followed suit. Through the first nine months of 2025, diluted earnings per share (EPS) reached $1.26, compared to $1.07 for the entire 2024 fiscal year. This trajectory suggests accelerating profitability as the company scales operations.

Market Recognition: Stock Performance Speaks Volumes

The market has rewarded ACM Research’s strong execution. Over the trailing twelve-month period, the stock delivered a total return of 68.2%, substantially outperforming the S&P 500 by 57 percentage points. In October 2025, shares reached a 52-week high of $45.12, reflecting investor appetite for semiconductor equipment plays riding the wave of advanced chip fabrication demand.

Institutional Investor Moves: Seldon Capital’s Strategic Entry

Seldon Capital LP, an institutional investment manager, disclosed a notable acquisition of ACM Research shares through a November 14, 2025 Securities and Exchange Commission filing. The firm acquired 193,242 shares, representing a $7.56 million position valued at quarter-end pricing from September 30, 2025.

This new position accounts for 2.66% of Seldon Capital’s reportable assets under management (AUM), indicating material conviction. As of the filing date, Seldon Capital maintained a 13F portfolio of 70 total equity positions. The new ACM Research stake ranked meaningfully within the firm’s portfolio, though below its top five holdings: TLN ($30.14 million, 10.6% of AUM), VT ($29.37 million, 10.3% of AUM), CLS ($27.58 million, 9.7% of AUM), VTI ($17.75 million, 6.2% of AUM), and ECH ($11.15 million, 3.9% of AUM).

Timing and Implications

Seldon Capital’s Q3 purchase proved prescient. The third quarter entry point preceded the October peak, positioning early acquirers favorably as sentiment around semiconductor capital equipment remained constructive. The timing suggests institutional investors recognized fundamental strength in ACM Research’s business well before the stock’s subsequent rally.

This acquisition reflects broader institutional recognition that ACM Research’s proprietary technology and strong execution create competitive advantages within the semiconductor processing equipment sector. For investors evaluating semiconductor exposure through equipment suppliers, ACM Research’s combination of revenue growth, margin expansion, and market appreciation warrants consideration alongside traditional industry metrics and valuation assessments.

The convergence of strong TTM in share market performance with exceptional business fundamentals underscores why sophisticated investors like Seldon Capital have initiated meaningful positions in this semiconductor equipment specialist.