ACM Research, Inc. (NASDAQ:ACMR – Get Free Report) shares dropped 5.9% during trading on Thursday . The company traded as low as $18.03 and last traded at $18.11. Approximately 576,363 shares traded hands during mid-day trading, a decline of 28% from the average daily volume of 806,088 shares. The stock had previously closed at $19.24. […]