Acm Research is trading $49.00, up +10.29%, with no new company-specific release found to explain the pre-market rise. - This compares with the November 4 close of $44.43. - Q3 results were scheduled before the November 5 market open, with an 8:00 a.m. ET call; at 5:12 a.m. ET, the report was still upcoming. - Semiconductor-sector weakness was reported, but does not explain the stock’s move in the opposite direction.