ACMR
Acm Research IncNASDAQ
Technology • Semiconductor Equipment & Materials
Factor tilt: Mid-Cap Blend
$44.61+13.48%
Close Nov 6, 2026
- Market cap
- $3.2B
- 1 month
- -37.0%
- 3 months
- -43.8%
- 1 year
- +43.3%
- 52-week range
- $29.67$126.89
- Dividend
- No dividends on record
- Next-quarter EPS estimate
- $0.52Quarter to Sep 30, 2026 · 4 analysts · revenue $310.61M · +7.8% in 30d
- Short interest
- 3.5M sharessettled Oct 15, 2026 · -14.1% since Sep 30, 2026 · FINRA
Fundamentals · trailing 12 months to Jun 30, 2026
- Revenue
- $1.04B
- Net income
- $150.23M
- Free cash flow
- -$120.13M
- Book value
- $1.86B
- Total debt
- $349.32M
- P/E
- 21.3×
- Price / sales
- 3.1×
- Price / book
- 1.7×
- FCF yield
- -3.7%
- Net margin
- +14.5%
EODHD (TTM) · as of Nov 6, 2026
End-of-day close from stored market data, not a live quote.
About Acm Research Inc
ACM Research, Inc., together with its subsidiaries, develops, manufactures, and sells capital equipment in Mainland China and internationally. It also develops, manufactures, and sells a range of packaging tools to wafer assembly and packaging customers.
Read more
The company provides wet cleaning equipment for front end production processes; electrochemical plating, furnace, PECVD, and track platforms; Space Alternated Phase Shift, technology for flat and wafer surfaces; timely energized bubble oscillation, technology for patterned wafer surfaces at advanced process nodes; and Tahoe technology; and semi-critical cleaning tools. It also offers advanced packaging equipment, such as coaters, developers, photoresist strippers, scrubbers, wet etchers and copper-plating equipment; and advanced packaging products include: Ultra ECP ap, which delivers a uniform metal layer to finished wafers prior to packaging; Ultra C Developer, which applies liquid developer to selected parts of photoresist to resolve an image; Ultra C PR Megasonic-Assisted Stripper, which removes photoresist; Ultra C Scrubber, which scrubs and cleans wafers; Ultra C Thin Wafer Scrubber, which addresses a sub-market of cleaning very thin wafers for certain Asian assembly factories; and Ultra C Wet Etcher, which etches silicon wafers and copper and titanium interconnects. In addition, the company provides ECP technology for advanced metal plating; Ultra fn Furnace, a dry processing tool; Ultra Pmax PECVD tools, a proprietary designed chamber, gas distribution unit, and chuck; and Ultra Track, a 300mm process tool that delivers uniform air downflow, fast robot handling and configurable software to address specific customer requirements. It markets and sells its products under the SAPS, TEBO, ULTRA C, ULTRA Fn, Ultra ECP, Ultra ECP map, and Ultra ECP ap trademarks through direct sales force and third-party representatives. ACM Research, Inc. was incorporated in 1998 and is headquartered in Fremont, California.
- Website
- acmr.com
- Headquarters
- Fremont, CA, United States
- Employees
- 2,513
- Listed
- Nov 3, 2017
- Fiscal year ends
- December
Company profile from EODHD, stored Oct 25, 2026.
Quarterly results
The last 8 fiscal quarters as reported (EODHD). Year over year compares the same quarter a year earlier.
| Quarter | Revenue | YoY | Gross margin | Op. income | Net income |
|---|---|---|---|---|---|
| Jun 2026filed Aug 7, 2026 | $292.9M | +36.0% | 46.0% | $49.7M | $89.0M |
| Mar 2026filed May 8, 2026 | $231.3M | +34.2% | 46.4% | $36.2M | $17.3M |
| Dec 2025filed Mar 2, 2026 | $244.4M | +9.4% | 40.9% | $23.0M | $8.0M |
| Sep 2025filed Nov 6, 2025 | $269.2M | +32.0% | 42.0% | $28.9M | $35.9M |
| Jun 2025filed Aug 7, 2025 | $215.4M | +6.4% | 48.5% | $31.7M | $29.8M |
| Mar 2025filed May 12, 2025 | $172.3M | +13.2% | 47.9% | $25.8M | $20.4M |
| Dec 2024filed Mar 3, 2025 | $223.5M | +31.2% | 49.6% | $44.0M | $31.1M |
| Sep 2024filed Nov 7, 2024 | $204.0M | +21.0% | 51.4% | $44.2M | $30.9M |
Fiscal years · last 6
| Fiscal year | Revenue | YoY | Gross margin | Op. income | Net income |
|---|---|---|---|---|---|
| Dec 2025filed Mar 2, 2026 | $901.3M | +15.2% | 44.4% | $109.4M | $94.1M |
| Dec 2024filed Mar 3, 2025 | $782.1M | +40.2% | 50.1% | $151.0M | $103.6M |
| Dec 2023filed Dec 31, 2023 | $557.7M | +43.4% | 49.5% | $95.8M | $77.3M |
| Dec 2022filed Mar 2, 2023 | $388.8M | +49.7% | 47.2% | $59.0M | $39.3M |
| Dec 2021filed Mar 1, 2022 | $259.8M | +65.8% | 44.2% | $38.7M | $37.8M |
| Dec 2020filed Mar 1, 2021 | $156.6M | +45.7% | 44.4% | $21.5M | $18.8M |
Short-interest history
FINRA reports open short positions for a settlement date. The publication date is later. These are reported positions, with a separate date for each observation.
Compare the reported short exposure around the dates you bought, sold or watched ACMR. A long position benefits from price rises; a short position benefits from falls. A change in these counts does not predict either move.
Settlement Oct 15, 2026
3,482,683 shares short
-572,982 shares (-14.1%) vs Sep 30, 2026
Share of float unavailable. Published Oct 26, 2026.
Settlement Sep 30, 2026
4,055,665 shares short
-81,020 shares (-2%) vs Sep 15, 2026
Share of float unavailable. Published Oct 9, 2026.
Settlement Sep 15, 2026
4,136,685 shares short
+165,719 shares (+4.2%) vs Aug 31, 2026
Share of float unavailable. Published Sep 24, 2026.
Settlement Aug 31, 2026
3,970,966 shares short
+685,473 shares (+20.9%) vs Aug 14, 2026
Share of float unavailable. Published Sep 10, 2026.
Settlement Aug 14, 2026
3,285,493 shares short
-318,325 shares (-8.8%) vs Jul 31, 2026
Share of float unavailable. Published Aug 25, 2026.
Settlement Jul 31, 2026
3,603,818 shares short
-307,389 shares (-7.9%) vs Jul 15, 2026
Share of float unavailable. Published Aug 11, 2026.
Change = this settlement’s shares short − the previous recorded settlement’s shares short; percentage change divides by that earlier count. A zero earlier count has no percentage change. Split-spanning counts are left uncompared. Float percentages use the stored settlement observation, not today’s float.
Source: stored FINRA equity short-interest records, up to six settlements from the last 240 days. FINRA data and reporting dates · How to read short interest
Dividends and stock splits
See the recorded cash amounts and dates behind ACMR’s income, and the splits that change its share count. Dates below are stored event records, not confirmation of a payment to your account.
Cash-dividend records
No qualified cash-dividend records are stored. This does not establish that the company pays no dividend.
Up to six Polygon cash-dividend events, including recorded ex-dates within the next 120 days. Amounts retain their recorded currency and decimal precision. Historical amounts are not restated to a common split basis, annualized, or converted to dollars.
For a long holding, compare the ex-date with when you held the shares and check the pay date against your broker’s cash history. Owning the stock today does not establish past entitlement. For a short holding, a dividend can create a payment obligation to the share lender.
Ex-dates and special dividend rules · Short-sale dividend obligations · Dividend data definitions
Split history
Split history is unavailable right now.
1 conflicting split date is omitted; the ratio could not be resolved.
Up to six stored split dates through Nov 7, 2026. Equivalent vendor ratios are combined; conflicting ratios are left out. This history may be incomplete.
A split changes the share count and per-share price basis; it does not by itself add investment value. Put your holding’s earlier and later share counts on the same basis before comparing them. This applies to both long shares and shares owed on a short position.
How stock splits workPortfolio context
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Smart money context
Holder IQ: MEDIUM
66 smart-money holders: institutions with a high Holder IQ
Q2 2026, filed Nov 3, 2026
Smart-money 13F trend: distributing (heavy)
Unlock crowding heatmapUnlock filer discoveryInsider context
Sentiment: bearish
Last trade: sell 58 days ago
Read the insider context evidence
What it means for you
Sign in to read your holdings or watchlist context. No personal position or direction is inferred.
What happened
Stored recent-activity label: bearish. This context label is separate from the scored insider signal read.
Why it can matter
A count of reported activity describes a sample, not purchase conviction, an insider’s intent or a future price move. Neutral is not an all-clear, and absent direction is not neutral evidence.
How we got this
The current context rule reads at most 50 nonduplicate issuer/share-class records filed in the last 90 days. It counts a bullish direction or purchase code P toward bullish, and a bearish direction or sale code S toward bearish. A side must exceed the opposite count by more than two to set its label; otherwise nonzero directional counts produce neutral. Calculation unavailable for this saved label: its counts, exact records, as-of time and rule version are not supplied here. Do not substitute the separate scored read’s different window or denominator.
Where the data comes from
Stored SEC Forms 3/4/5 insider-signal records, ordered by filing date with amendment duplicates excluded. Filing date is not transaction date. The last-trade line locates recent reported activity; it does not date or reconstruct the complete count.
Red flags: 6
Read the insider context evidence
What it means for you
Sign in to read your holdings or watchlist context. No personal position or direction is inferred.
What happened
Stored recent-activity label: bearish. This context label is separate from the scored insider signal read.
Why it can matter
A count of reported activity describes a sample, not purchase conviction, an insider’s intent or a future price move. Neutral is not an all-clear, and absent direction is not neutral evidence.
How we got this
The current context rule reads at most 50 nonduplicate issuer/share-class records filed in the last 90 days. It counts a bullish direction or purchase code P toward bullish, and a bearish direction or sale code S toward bearish. A side must exceed the opposite count by more than two to set its label; otherwise nonzero directional counts produce neutral. Calculation unavailable for this saved label: its counts, exact records, as-of time and rule version are not supplied here. Do not substitute the separate scored read’s different window or denominator.
Where the data comes from
Stored SEC Forms 3/4/5 insider-signal records, ordered by filing date with amendment duplicates excluded. Filing date is not transaction date. The last-trade line locates recent reported activity; it does not date or reconstruct the complete count.
Largest 13-F holders · Q2 2026
379 filers reported a long position in ACMR for Q2 2026. 13-F holdings are filed up to 45 days after the quarter ends.
The top 10 hold
50.9%
of the 48.5M shares 13-F filers reported
Moves vs Q1 2026
8 added0 trimmed
2 new
Net shares held
+16.6%
across the 8 holders with a comparable Q1 2026 book
| Rank | Holder | Value | Shares | Shares vs Q1 2026 |
|---|---|---|---|---|
| 1 | BlackRock, Inc. | $1.1B · 8.7M shares | 8.7M | +8.5% |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | $425M · 3.3M shares | 3.3M | +52% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | $312.5M · 2.5M shares | 2.5M | +8.8% |
| 4 | Capital World Investors | $304.3M · 2.4M shares | 2.4M | New |
| 5 | STATE STREET CORP | $277.7M · 2.2M shares | 2.2M | +9.1% |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | $188.8M · 1.5M shares | 1.5M | +8.5% |
| 7 | Invesco Ltd. | $148.5M · 1.2M shares | 1.2M | +48.7% |
| 8 | Value Aligned Research Advisors, LLC | $133.7M · 1.1M shares | 1.1M | +10.3% |
| 9 | WFM ASIA (BVI) Ltd | $123M · 969.2K shares | 969.2K | New |
| 10 | DIMENSIONAL FUND ADVISORS LP | $121.1M · 954.5K shares | 954.5K | +32.7% |
Sign in to see each holder’s Holder IQ, factor-adjusted Holder IQ and rank, and compare these holders with all scored filers. Available on every plan.
Sign in5% holder filings (13D / 13G)
Holders of more than 5% of ACMR file with the SEC within days. A 13D holder may seek to influence the company; a 13G holder is passive. Each holder’s latest filing from the last three years.
| Filed | Holder | % of class |
|---|---|---|
| Jul 31, 2026 | VANGUARD PORTFOLIO MANAGEMENT LLC13G · passive | 5.31% |
| Mar 26, 2026 | VANGUARD GROUP INC13G · passive · amended | 0%under 5% |
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