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Last update: Jul 21, 2026, 6:24 PM ET
ACM Research, Inc.
15.5% on Jul 21, 2026

Why ACM Research, Inc. (ACMR) Stock Rose 15.5% on Jul 21, 2026

Published Jul 22, 2026

What happened

Activity+15.5%low confidence

ACM Research, Inc. (ACMR) moved +15.45% from $82.52 to $95.27 on 2026-07-21. We checked news, earnings, analyst updates, SEC filings, and corporate actions — no company-specific catalyst was found. Volume remained near its 5-day average at 1.2x.

Source: daily_prices
What to watch next

Watch for earnings announcements, analyst revisions, or SEC filings that could explain or sustain the move.

Frequently asked questions

Why did ACM Research, Inc. (ACMR) stock rise on Jul 21, 2026?

ACM Research, Inc. (ACMR) moved +15.45% from $82.52 to $95.27 on 2026-07-21. We checked news, earnings, analyst updates, SEC filings, and corporate actions — no company-specific catalyst was found. Volume remained near its 5-day average at 1.2x.

How much did ACMR stock rise on Jul 21, 2026?

ACMR rose 15.5% during the Jul 21, 2026 trading session.

This is an archived analysis of ACMR's Jul 21, 2026 session.
See ACMR's latest changes →
Educational research tool — not personalized investment advice. Figures reflect the Jul 21, 2026 session as first analyzed.