Top Midday Decliners

02:09 PM EDT, 10/15/2026 (MT Newswires) -- Rocket Lab (RKLB) shares slumped 9.5% after the company said it expects a delay in the inaugural launch of its reusable, medium-lift Neutron rocket to 2027. Intraday trading volume surged to more than 35.4 million from a daily average of about 19.4 million. FMC (FMC) said Thursday it now expects Q3 revenue of $65 million to $125 million, below an estimate of $868.5 million in a FactSet poll. The company previously forecast Q3 revenue excluding India of $840 million to $900 million. Shares slumped 35% as intraday trading volume soared to over 21.3 million from a daily average of about 3.8 million. B. Riley cut its price target on Coherent (COHR) to $297 from $345 while maintaining its neutral rating. Shares were down 7%, with intraday volume of over 6.7 million, versus a daily average of about 6.6 million. Price: 53.54, Change: -5.65, Percent Change: -9.54