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ACM Research, Inc.
$63.94 4.37% today
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Why ACM Research, Inc. (ACMR) stock moved

Updated Sep 16, 2026

ACM Research, Inc. (ACMR) shares fell 4.4% to $63.94 as of September 16, 2026, a moderate decline from the prior close of $66.86. BestStocks flagged the session as a major change for ACMR. The move is tied to price move down. Below, we break down what changed for ACMR, why it matters for investors, how the stock reacted, and the catalysts on the calendar.

What happened

ACMR fell 4.4% to $63.94

ACMR fell 4.4% in its latest session, moving from $66.86 to $63.94.

Material / EarningsLow confidence
Rel. volume
0.9×
Below Avg
Vs peers
No comparable peers
Market cap
$4.1B
NASDAQ Global Market
Analyst target
$113
+77.0% vs price
Price chart
Aug 17 – Sep 16
EVVVEE$64$75$86Aug 17Aug 24Sep 1Sep 9Sep 16
E earnings
F filing
A analyst
V/N other
click a marker to highlight
Change events — click to jump to details

What it means for ACM Research, Inc. investors

For ACM Research, Inc. investors, the recent signals add up to a bearish shift. On the constructive side: ACM Research rallied +6.06% to $73.63, driven by continued momentum following a strong Q2 earnings beat ($0.61 EPS vs. $0.42 consensus) and raised full-year revenue guidance, per web sources citing accelerating orders and surging advanced technology revenue; ACM Research, Inc. (ACMR) moved +15.45% from $82.52 to $95.27 on 2026-07-21. Weighing against that: Material negative event; Negative session, down 4.4%. Wall Street's consensus price target sits at $113.20, implying +77.0% upside from $63.94. BestStocks rates the overall signal quality low (54/100). With earnings roughly 49 days out, the next report is the most likely near-term test of the move.

ACMR price reaction

ACMR last traded at $63.94, down $2.92 (-4.37%) from the previous close of $66.86. The session traded on 0.9× average volume (below avg), so participation was unremarkable. Over the past month the stock has ranged between $63.94 and $85.64, and it currently sits about 0% of the way up that band.

Bullish and bearish analyst opinions on ACM Research, Inc. (ACMR)

The consensus analyst price target on ACM Research, Inc. (ACMR) is $113.20, 77.0% above the recent $63.94. Over the past 90 days analysts logged 0 upgrades, 2 maintains, and 0 downgrades. Here is how the bullish and bearish cases on ACMR line up.

The bullish case

  • Wall Street's consensus price target of $113.20 implies +77.0% upside from $63.94.
  • The Street's most bullish target is $136.00 (+112.7%).
  • ACM Research rallied +6.06% to $73.63, driven by continued momentum following a strong Q2 earnings beat ($0.61 EPS vs. $0.42 consensus) and raised full-year revenue guidance, per web sources citing accelerating orders and surging advanced technology revenue.
  • ACM Research, Inc. (ACMR) moved +15.45% from $82.52 to $95.27 on 2026-07-21.

The bearish case

  • Material negative event.
  • Negative session, down 4.4%.
  • ACM Research, Inc. (ACMR) moved -8.62% from $86.90 to $79.41 on 2026-08-10.
  • ACM Research fell 8.38% to $84.25 in intraday trading despite a broader market uptick, according to Zacks.
Bull vs bear balanceBearish Shift
BearishNeutralBullish

Weighing both sides, BestStocks' composite read of recent signals is bearish, as the bull-versus-bear meter above shows. This is an educational summary of the bull and bear case, not investment advice.

Analyst price targets and ratings are FMP consensus figures as of Sep 16, 2026; other aggregators may differ. High and low targets show the range of estimates, not forecasts.

Analyst expectations
Consensus target: $113+77.0%
= 2 maintains
Morgan Stanley maintained Overweight · 2026-06-24
SEC filings watch
10-Q2026-08-07
Quarterly financial results
medium
8-K2026-08-07
Material event — review for impact
high
8-K2026-06-22
Material event — review for impact
high
8-K2026-06-12
Material event — review for impact
high
Peer context
ACMR-4.4%

Previous notable changes for ACMR

Activity2026-09-04+7.2%via zacks.com
ACM Research rallied +6.06% to $73.63, driven by continued momentum following a strong Q2 earnings beat ($0.61 EPS vs. $0.42 consensus) and raised full-year revenue guidance, per web sources citing accelerating orders and surging advanced technology revenue. Technical analysts also noted a bullish hammer pattern formation following a recent pullback. Volume of 198,546 shares remains below average at 0.58x expected for this point in the session.
Valuation2026-08-31-2.1%via Yahoo Finance
ACM Research declined 2.94% to $72.23 amid broader semiconductor sector volatility and profit-taking following its recent earnings rally, according to market analysis cited by Yahoo Finance. Valuation pressure—with analysts flagging potential 46% overvaluation—combined with recent insider share sales after the August earnings report, weighed on the stock. Volume was below average at 0.63x expected for this point in the session.
Valuation2026-08-28-7.5%via Yahoo Finance
ACM Research shares fell 6.81% to $75.01 as semiconductor stocks faced a sector-wide pullback on August 28, 2026, compounded by profit-taking after earlier multi-month gains and lingering concerns over the company's heavy China revenue exposure amid geopolitical and export-control headwinds (Yahoo Finance). Volume of 573,930 shares ran 31% below the historical average for this point in the session, suggesting modest conviction behind the decline.
Material / Earnings2026-08-19-8.0%
ACM Research, Inc. (ACMR) moved -8.72% from $85.00 to $77.59 on 2026-08-19. The decline occurred as the semiconductor equipment sector experienced a broad pullback, with investors taking profits following ACMR's strong Q2 earnings beat and raised 2026 guidance announced earlier in August. Volume remained near its 5-day average, consistent with profit-taking rather than capitulation selling.

In-depth ACMR event analyses

Permanent, dated analyses of ACMR's most significant sessions.
Upcoming catalysts & outlook
Next earnings
2026-11-04 (est.)
in 49 days
10-Q Filing (est.)
2026-11-06
Medium impact
Thesis shift
Bearish Shift
bearish signal
Risk level
High
from change events

Frequently asked questions about ACMR

Why did ACM Research, Inc. (ACMR) stock move?

ACMR fell 4.4% to $63.94. No single company-specific catalyst was confirmed during the move window, and it looks technical.

How much did ACMR stock fall?

ACMR lost 4.37% ($2.92) versus the prior close of $66.86, last trading at $63.94 on 0.9× average volume.

When is ACM Research, Inc.'s next earnings date?

ACMR's next earnings report is estimated for 2026-11-04 — about 49 days away.

What is the analyst price target for ACMR?

The consensus analyst price target for ACMR is $113.20, about 77.0% above the current $63.94. Over the past 90 days, analysts recorded 0 upgrades, 2 maintains, and 0 downgrades.

How BestStocks tracks ACMR

This page is generated automatically by BestStocks' change-detection system after price move down was detected and verified against independent data sources. It draws on 20 tracked change events for ACMR, cross-checked against the data sources listed below. Price, volume, and market-capitalization figures are the live intraday quote as of September 16, 2026 and refresh as new information is detected; for companies with multiple share classes, market-cap figures can differ by data source. Analyst price targets and ratings are FMP consensus. This is an educational summary of what changed and why — not personalized investment advice.

Data sources
FMP real-time & historical price dataFMP earnings & estimatesSEC EDGAR filingsAnalyst ratings & price targets (FMP)Earnings calendar (FMP)
Educational research tool — not personalized investment advice. Data may be delayed.