ACM Research, Inc. (ACMR) Stock
ACMR has an Alpha Score of 35 out of 100 (weak), computed on Nov 3, 2026 from 3 of 4 sub-scores. 8 of the hedge funds AlphaScala tracks reported ACMR in 13F filings for the quarter ended Sep 30, 2026; the largest reported position is Citadel's at $80.81M. Company insiders reported 0 open-market buys and 15 sales on SEC Form 4 in the 90 days to Nov 2, 2026. Its trailing P/E ratio is 23.8 and its net margin 14.5% (key statistics as of Oct 27, 2026).
What is ACMR's Alpha Score?
How it works →Alpha Score of 35 reflects weak overall profile with poor momentum, weak value, strong quality. Based on 3 of 4 signals – score is capped at 90 until remaining data ingests.
Computed from 3 of 4 sub-scores; a sub-score is left out when its inputs are missing, and the composite is capped accordingly.
Computed Nov 3, 2026
A rules-based research rating, not a recommendation to buy or sell.
Which hedge funds own ACMR?
From 13F filings| Fund | Shares Held | Position Value | Change vs prior Q |
|---|---|---|---|
| Citadel Ken Griffin | 637K | $80.81M | +213% |
| Renaissance Technologies Jim Simons (founder) | 230K | $29.16M | +87% |
| Millennium Management Israel Englander | 141K | $17.83M | +114% |
| D.E. Shaw David Shaw | 34K | $4.25M | NEW |
| Soros Fund Management George Soros (founder) | 30K | $3.82M | NEW |
| Hussman Investment Trust John Hussman | 42K | $3.40M | NEW |
| Marshall Wace | 6K | $715.3K | -2% |
| Maverick Capital Lee Ainslie | 5K | $674.4K | NEW |
13F holdings as of Sep 30, 2026
Explore all tracked funds →Are ACM Research, Inc. insiders buying or selling?
SEC Form 4 filings| Date | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| Sep 9, 26 | Wang David H | See Remarks | SELL | 33.5K | $2.5M |
| Sep 9, 26 | Wang David H | See Remarks | SELL | 18.9K | $1.4M |
| Sep 9, 26 | Wang David H | See Remarks | SELL | 11.7K | $882K |
| Sep 9, 26 | Wang David H | See Remarks | SELL | 4.8K | $369K |
| Sep 9, 26 | Wang David H | See Remarks | SELL | 1.1K | $85K |
| Sep 8, 26 | Wang David H | See Remarks | SELL | 4.8K | $365K |
| Sep 8, 26 | Wang David H | See Remarks | SELL | 51.4K | $4.0M |
| Sep 8, 26 | Wang David H | See Remarks | SELL | 12.3K | $962K |
| Sep 8, 26 | Wang David H | See Remarks | SELL | 1.5K | $118K |
| Aug 20, 26 | Mckechnie Mark | See Remarks | SELL | 13.6K | $1.0M |
SEC Form 4 filings as of Nov 2, 2026
See cluster-buy signals across all tickers →What are ACMR's key statistics?
Key statistics as of Oct 27, 2026
How does ACMR's valuation compare with the Technology sector?
| Metric | ACMR | Technology median | Companies in median |
|---|---|---|---|
| P/E ratio | 23.8 | 33.2 | 167 |
| Net margin | 14.48% | 11.43% | 191 |
| Return on equity | 9.48% | 15.27% | 194 |
Medians over the Technology stocks whose key statistics were refreshed in the last 35 days (newest Nov 3, 2026). P/E excludes loss-making companies.
ACMR price chart
Powered by TradingViewWhat does ACM Research, Inc. do?
ACM Research Inc. is a leading manufacturer of wafer fabrication equipment serving the semiconductor industry worldwide. The company specializes in developing and selling advanced tools for single-wafer and batch wet cleaning, electroplating, stress-free polishing, PECVD, ALD, track, and thermal processes, enhancing productivity, efficiency, and yield in high-volume IC fabrication, compound semiconductors, wafer-level packaging, and wafer manufacturing. Proprietary technologies such as Space Alternated Phase Shift (SAPS™) for uniform cleaning of flat and patterned wafers, Timely Energized Bubble Oscillation (TEBO™) for high-aspect-ratio 3D structures like FinFET and 3D NAND, Ultra SFP for through-silicon vias and fan-out wafer-level packaging, eco-friendly Tahoe SPM cleaning, and Ultra ECP for copper deposition distinguish its offerings. While headquartered in the United States, ACM Research Inc. conducts the majority of its operations through subsidiaries in Shanghai, China, and Inchon, South Korea, supporting customers across Asia, North America, and Europe with customized, sustainable solutions backed by extensive patents. Founded in 1998 in California, it plays a vital role in enabling advanced semiconductor manufacturing processes.