ACM Research (ACMR) Latest Stock Analysis Report – Oct 15, 2026, 4:00 PM ET
Updated Oct 15, 2026, 4:00 PM ET
- Closed at $58.09, -4.96% vs the prior close of $61.12.
- Volume 1.95M shares, 1.8x its 50-day average (heavy).
- No new SEC filings since the prior session.
- No new insider buys or sales reported since the prior session.
ACMR slides 5.0% to $58.09, a 3-month low on 1.8x normal volume. Closed at $58.09, -4.96% vs the prior close of $61.12. Day range $54.72–$58.31, opened at $57.31.
ACMR daily analysis — what happened
A plain-English, data-only note written after every US trading day. Newest first; older days stay archived below.
Oct 15, 2026 — ACMR slides 5.0% to $58.09, a 3-month low on 1.8x normal volume
- Closed at $58.09, -4.96% vs the prior close of $61.12. Day range $54.72–$58.31, opened at $57.31.
- Volume was 1.95M shares, 1.8x its 50-day average of 1.07M — unusually heavy trading.
- Price is -22.5% vs its 50-day average ($74.92) and -15.0% vs its 200-day average ($68.36).
- 52-week range $28.46–$127.19; today's close sits at 30% of that range, 54.3% below the 52-week high.
- That makes 4 straight losses.
Oct 14, 2026 — ACMR slides 5.7% to $61.12, a 3-month low, 3 down days in a row
- Closed at $61.12, -5.72% vs the prior close of $64.83. Day range $60.60–$63.66, opened at $62.90.
- Volume was 1.09M shares, 1.0x its 50-day average of 1.06M.
- Price is -18.9% vs its 50-day average ($75.36) and -10.5% vs its 200-day average ($68.27).
- 52-week range $28.46–$127.19; today's close sits at 33% of that range, 51.9% below the 52-week high.
- That makes 3 straight losses.
Oct 13, 2026 — ACMR slides 4.8% to $64.83
- Closed at $64.83, -4.80% vs the prior close of $68.10. Day range $63.00–$66.68, opened at $66.35.
- Volume was 1.26M shares, 1.2x its 50-day average of 1.05M.
- Price is -14.5% vs its 50-day average ($75.79) and -4.9% vs its 200-day average ($68.16).
- 52-week range $28.46–$127.19; today's close sits at 37% of that range, 49.0% below the 52-week high.
Oct 12, 2026 — ACMR slides 4.6% to $68.10
- Closed at $68.10, -4.58% vs the prior close of $71.37. Day range $68.00–$70.59, opened at $70.59.
- Volume was 618.40K shares, 0.6x its 50-day average of 1.06M — lighter than usual.
- Price is -10.5% vs its 50-day average ($76.06) and +0.1% vs its 200-day average ($68.04).
- 52-week range $28.46–$127.19; today's close sits at 40% of that range, 46.5% below the 52-week high.
Oct 9, 2026 — ACMR rises 0.8% to $71.37
- Closed at $71.37, +0.81% vs the prior close of $70.80. Day range $69.36–$72.90, opened at $71.86.
- Volume was 739.60K shares, 0.7x its 50-day average of 1.08M.
- Price is -6.4% vs its 50-day average ($76.27) and +5.1% vs its 200-day average ($67.90).
- 52-week range $28.46–$127.19; today's close sits at 43% of that range, 43.9% below the 52-week high.
Oct 8, 2026 — ACMR dips 2.7% to $70.80, 5 down days in a row
- Closed at $70.80, -2.71% vs the prior close of $72.77. Day range $68.86–$73.33, opened at $70.78.
- Volume was 1.55M shares, 1.4x its 50-day average of 1.09M.
- Price is -7.3% vs its 50-day average ($76.41) and +4.5% vs its 200-day average ($67.75).
- 52-week range $28.46–$127.19; today's close sits at 43% of that range, 44.3% below the 52-week high.
- That makes 5 straight losses.
Oct 7, 2026 — ACMR slides 3.4% to $72.77, 4 down days in a row
- Closed at $72.77, -3.42% vs the prior close of $75.35. Day range $70.99–$73.96, opened at $72.43.
- Volume was 1.21M shares, 1.1x its 50-day average of 1.09M.
- Price is -4.6% vs its 50-day average ($76.30) and +7.7% vs its 200-day average ($67.59).
- 52-week range $28.46–$127.19; today's close sits at 45% of that range, 42.8% below the 52-week high.
- That makes 4 straight losses.
Oct 6, 2026 — ACMR dips 1.1% to $75.35, 3 down days in a row
- Closed at $75.35, -1.08% vs the prior close of $76.17. Day range $75.08–$78.42, opened at $77.04.
- Volume was 1.88M shares, 1.8x its 50-day average of 1.07M.
- Price is -1.2% vs its 50-day average ($76.29) and +11.8% vs its 200-day average ($67.42).
- 52-week range $28.46–$127.19; today's close sits at 47% of that range, 40.8% below the 52-week high.
- That makes 3 straight losses.
Oct 5, 2026 — ACMR slides 8.6% to $76.17 on 2.1x normal volume
- Closed at $76.17, -8.65% vs the prior close of $83.38. Day range $75.18–$83.39, opened at $82.86.
- Volume was 2.15M shares, 2.1x its 50-day average of 1.04M — unusually heavy trading.
- Price is -0.3% vs its 50-day average ($76.38) and +13.3% vs its 200-day average ($67.23).
- 52-week range $28.46–$127.19; today's close sits at 48% of that range, 40.1% below the 52-week high.
Oct 2, 2026 — ACMR ends flat (-0.2%) to $83.38
- Closed at $83.38, -0.24% vs the prior close of $83.58. Day range $82.63–$86.20, opened at $86.09.
- Volume was 1.26M shares, 1.2x its 50-day average of 1.03M.
- Price is +8.9% vs its 50-day average ($76.54) and +24.4% vs its 200-day average ($67.03).
- 52-week range $28.46–$127.19; today's close sits at 56% of that range, 34.4% below the 52-week high.
ACMR latest news & SEC filings
Every SEC filing by or about ACMR in the last 120 days, explained in plain English. Updated daily, with a same-day refresh for new filings.
Sep 30, 2026 · 8-K — Current report
Current report — a filing companies must make within 4 business days of a major event
- Item 8.01 — Reported other events the company considers important.
Sep 10, 2026 · 4 — Insider trade report (Form 4)
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Wang David H sold 4,807 shares at $76.73 (≈$368.84K) on Sep 9, 2026
- Wang David H sold 1,100 shares at $77.59 (≈$85.35K) on Sep 9, 2026
- Wang David H sold 11,666 shares at $75.58 (≈$881.72K) on Sep 9, 2026
- Wang David H sold 18,934 shares at $74.67 (≈$1.41M) on Sep 9, 2026
- Wang David H sold 33,493 shares at $73.80 (≈$2.47M) on Sep 9, 2026
- Wang David H sold 1,500 shares at $78.57 (≈$117.85K) on Sep 8, 2026
- …plus 3 more transaction lines in the filing.
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Sep 9, 2026 · 144 — Notice of proposed sale (Form 144)
Notice of proposed sale (Form 144) — an insider or affiliate plans to sell restricted or control shares
A notice of intent, not a completed sale. Any actual sale by a director or officer shows up later on Form 4.
Sep 8, 2026 · 144 — Notice of proposed sale (Form 144)
Notice of proposed sale (Form 144) — an insider or affiliate plans to sell restricted or control shares
A notice of intent, not a completed sale. Any actual sale by a director or officer shows up later on Form 4.
Aug 27, 2026 · 8-K — Current report
Current report — a filing companies must make within 4 business days of a major event
- Item 8.01 — Reported other events the company considers important.
Aug 26, 2026 · 4 — Insider trade report (Form 4)
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).
Aug 26, 2026 · 4 — Insider trade report (Form 4)
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).
Aug 26, 2026 · 4 — Insider trade report (Form 4)
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).
Aug 7, 2026 · 10-Q — Quarterly report (unaudited financial statements for the quarter)
Quarterly report (unaudited financial statements for the quarter)
Quarter ended Jun 30, 2026:
- Revenue: $292.92M (prior year $215.37M) (+36.0% vs Jun 30, 2025)
- Net income: $88.98M (prior year $29.76M) (+199.0% vs Jun 30, 2025)
- Diluted EPS: $1.23 (prior year $0.44) (+179.5% vs Jun 30, 2025)
Aug 7, 2026 · 8-K — Current report
Current report — a filing companies must make within 4 business days of a major event
- Item 2.02 — Reported results of operations (earnings release).
This is a results-day filing: the earnings press release is attached as an exhibit.
Jul 31, 2026 · SCHEDULE 13G — Passive stake (13G)
Passive stake (13G) — an investor reported owning more than 5%
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Jun 22, 2026 · 8-K — Current report
Current report — a filing companies must make within 4 business days of a major event
- Item 8.01 — Reported other events the company considers important.
Things to know before you trade ACMR
- Last results release: Aug 7, 2026 (8-K Item 2.02). Previous ones: May 7, 2026, Apr 27, 2026, Feb 26, 2026. Based on that rhythm, the next report is likely around Nov 6, 2026 — an estimate, not a confirmed date.
- How much it moves: over the last 20 sessions the average daily move was 3.72% (largest 8.6%). That is a volatile stock.
- Liquidity: about 1.40M shares (≈$81.11M) trade per day on average.
- 52-week position: $58.09 vs a range of $28.46–$127.19 (30% of the range).
- Dividends: no cash dividends in the last 2 years.
- Splits: none in the last 2 years.
- Insider trades (Form 4, last 12 months, recent 25 shown): 0 open-market buys, 25 sales; latest: David H Wang sold 4,807 shares on Sep 9, 2026.
- Latest filings: 8-K Sep 30, 2026; 8-K Aug 27, 2026; 10-Q Aug 7, 2026.
- Share count: 14.18M shares outstanding (Mar 8, 2019), +9.1% vs a year earlier — notable dilution.
- Listing: Nasdaq · industry: Special Industry Machinery, NEC.
ACMR market data (last 20 sessions)
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Oct 15, 2026 | 57.31 | 58.31 | 54.72 | 58.09 | 1.95M |
| Oct 14, 2026 | 62.90 | 63.66 | 60.60 | 61.12 | 1.09M |
| Oct 13, 2026 | 66.35 | 66.68 | 63.00 | 64.83 | 1.26M |
| Oct 12, 2026 | 70.59 | 70.59 | 68.00 | 68.10 | 618.40K |
| Oct 9, 2026 | 71.86 | 72.90 | 69.36 | 71.37 | 739.60K |
| Oct 8, 2026 | 70.78 | 73.33 | 68.86 | 70.80 | 1.55M |
| Oct 7, 2026 | 72.43 | 73.96 | 70.99 | 72.77 | 1.21M |
| Oct 6, 2026 | 77.04 | 78.42 | 75.08 | 75.35 | 1.88M |
| Oct 5, 2026 | 82.86 | 83.39 | 75.18 | 76.17 | 2.15M |
| Oct 2, 2026 | 86.09 | 86.20 | 82.63 | 83.38 | 1.26M |
| Oct 1, 2026 | 81.50 | 85.23 | 81.25 | 83.58 | 1.43M |
| Sep 30, 2026 | 76.42 | 82.46 | 76.11 | 80.92 | 1.82M |
| Sep 29, 2026 | 78.71 | 78.75 | 74.82 | 75.61 | 692.50K |
| Sep 28, 2026 | 76.19 | 76.98 | 73.47 | 75.95 | 836.60K |
| Sep 25, 2026 | 77.97 | 78.46 | 76.08 | 77.30 | 611.20K |
| Sep 24, 2026 | 78.10 | 78.62 | 74.14 | 76.18 | 1.58M |
| Sep 23, 2026 | 74.65 | 82.78 | 72.40 | 80.67 | 2.82M |
| Sep 22, 2026 | 72.00 | 76.07 | 71.72 | 75.80 | 1.25M |
| Sep 21, 2026 | 71.46 | 73.40 | 70.61 | 72.77 | 1.56M |
| Sep 18, 2026 | 68.72 | 69.44 | 67.77 | 68.51 | 1.60M |
About ACM Research
ACM Research (ACMR) is listed on the Nasdaq and classified by the SEC under “Special Industry Machinery, NEC”. Its business address is in FREMONT, CA. State of incorporation: CA. Fiscal year ends December 31. SEC CIK 1680062.
ACMR board of directors & executives
From SEC Form 3/4/5 insider filings made in the last 12 months (date = latest filing).
Directors
| Name | Role | Latest filing |
|---|---|---|
| Haiping Dun | Director | Aug 26, 2026 |
| Tracy Liu | Director | Aug 26, 2026 |
| Charles C Pappis | Director | Aug 26, 2026 |
| David H Wang | See Remarks | Sep 10, 2026 |
Executive officers
| Name | Title | Latest filing |
|---|---|---|
| Sotheara Cheav | See remarks | Jun 5, 2026 |
| Fuping Chen | See remarks | Dec 4, 2025 |
| Lisa Feng | See remarks | Mar 9, 2026 |
| Mark Mckechnie | See Remarks | Aug 21, 2026 |
| David H Wang | See Remarks | Sep 10, 2026 |
Recent insider buys & sales
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Sep 9, 2026 | David H Wang | Sale | 4,807 | $76.73 |
| Sep 9, 2026 | David H Wang | Sale | 1,100 | $77.59 |
| Sep 9, 2026 | David H Wang | Sale | 11,666 | $75.58 |
| Sep 9, 2026 | David H Wang | Sale | 18,934 | $74.67 |
| Sep 9, 2026 | David H Wang | Sale | 33,493 | $73.80 |
| Sep 8, 2026 | David H Wang | Sale | 1,500 | $78.57 |
| Sep 8, 2026 | David H Wang | Sale | 12,323 | $78.08 |
| Sep 8, 2026 | David H Wang | Sale | 51,374 | $77.15 |
| Sep 8, 2026 | David H Wang | Sale | 4,803 | $75.99 |
| Aug 20, 2026 | Mark Mckechnie | Sale | 11,209 | $77.89 |
| Aug 20, 2026 | Mark Mckechnie | Sale | 30,365 | $77.45 |
| Aug 20, 2026 | Mark Mckechnie | Sale | 13,625 | $76.34 |
| Aug 18, 2026 | Haiping Dun | Sale | 3,400 | $81.31 |
| Aug 18, 2026 | Haiping Dun | Sale | 1,200 | $80.29 |
| Aug 18, 2026 | Haiping Dun | Sale | 400 | $82.17 |
ACMR financials (annual, from XBRL filings)
| Fiscal year end | Revenue | Net income | Diluted EPS | Operating cash flow |
|---|---|---|---|---|
| Dec 31, 2025 | $901.31M | $94.08M | 1.37 | $-10.32M |
| Dec 31, 2024 | $782.12M | $103.63M | 1.53 | $152.45M |
| Dec 31, 2023 | $557.72M | $77.35M | 1.16 | $-75.32M |
| Dec 31, 2022 | $388.83M | $39.26M | 0.59 | $-62.19M |
| Dec 31, 2021 | $259.75M | $37.76M | 0.58 | $-40.09M |
Latest balance sheet: total assets $3.40B, total liabilities $994.12M, cash $969.23M (as of Jun 30, 2026).
ACMR earnings / results-day log
| Date | Filing | Close that day |
|---|---|---|
| Aug 7, 2026 | 8-K Item 2.02 (results) | $83.80 |
| May 7, 2026 | 8-K Item 2.02 (results) | $59.20 |
| Apr 27, 2026 | 8-K Item 2.02 (results) | $53.23 |
| Feb 26, 2026 | 8-K Item 2.02 (results) | $57.04 |
| Jan 22, 2026 | 8-K Item 2.02 (results) | $51.67 |
| Nov 5, 2025 | 8-K Item 2.02 (results) | $31.14 |
| Oct 29, 2025 | 8-K Item 2.02 (results) | $42.18 |
| Aug 6, 2025 | 8-K Item 2.02 (results) | $25.10 |
| May 8, 2025 | 8-K Item 2.02 (results) | $22.43 |
| Apr 29, 2025 | 8-K Item 2.02 (results) | $18.52 |
| Feb 26, 2025 | 8-K Item 2.02 (results) | $27.69 |
| Jan 14, 2025 | 8-K Item 2.02 (results) | $17.86 |
Related stocks · Special Industry Machinery, NEC
Lam Research (LRCX)Asml Holding Nv (ASML)Axcelis Technologies (ACLS)Azenta (AZTA)Veeco Instruments (VECO)Velo3D (VELO)Cricut (CRCT)Amtech Systems (ASYS)Energy Recovery (ERII)Trio-Tech International (TRT)
Popular today
Micron Technology (MU)Spdr S&P 500 Etf (SPY)Nvidia (NVDA)Sandisk (SNDK)AMD (AMD)Space Exploration Technologies (SPCX)Intel (INTC)Apple (AAPL)Microsoft (MSFT)Meta Platforms (META)Broadcom (AVGO)Tesla (TSLA)
More on ACMR
Information only, not investment advice. BuyMeWhiskey is not a registered investment adviser or broker-dealer; nothing here is a recommendation to buy, sell or hold any security, and there are no price targets. Data comes from SEC EDGAR filings and public end-of-day market data and may be delayed or contain errors. Verify with the company's filings before making decisions. Prices: end-of-day data as of Oct 15, 2026, 4:00 PM ET. Filings: SEC EDGAR. Updated after every US trading day.