Daily trading records
ACM Research Stock Price on July 31, 2026
Direct answer
ACM Research closed at $78.47 on July 31, 2026.
The open was $83.67, the high was $85.00 and the low was $76.60.
Volume was 897,223. The change from the prior close was -$0.18 (-0.23%).
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Review ACM Research's price trend and period performance.
The chart connects verified session closes from May 5, 2026 through July 31, 2026.
Period performance is calculated from verified trading sessions.
5-session performance
-6.94%
From the July 24, 2026 close of $84.32 to $78.47 on July 31, 2026.
20-session performance
-19.74%
From the July 2, 2026 close of $97.77 to $78.47 on July 31, 2026.
60-session performance
+48.62%
From the May 5, 2026 close of $52.80 to $78.47 on July 31, 2026.
Verified data
- Open
- $83.67
- High
- $85.00
- Low
- $76.60
- Close
- $78.47
- Volume
- 897,223
- Prior-close change
- -$0.18 (-0.23%)
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Read the frequently asked questions.
What was ACM Research's closing price on July 31, 2026?
ACM Research closed at $78.47 on July 31, 2026.
What were ACM Research's open, high and low on July 31, 2026?
The open was $83.67, the high was $85.00 and the low was $76.60.
How much did ACM Research change from the prior close on July 31, 2026?
The change from the prior close was -$0.18 (-0.23%).
What was ACM Research's volume on July 31, 2026?
Trading volume was 897,223 shares.
What is the source for ACM Research's daily prices?
Daily aggregate prices are provided by Polygon.