Rocket Lab USA is trading 4.57% down at $56.40 after-hours amid broad market weakness; no verified new company announcement directly explains the decline. - It closed the regular session at $59.10 on October 29. - The S&P 500 fell 1.09% and the Nasdaq Composite fell 2.56%, as technology shares faced pressure after disappointing earnings and outlooks from major companies. - Third-quarter results are scheduled for November 9; no earnings release was identified as a catalyst today. Volume and trading-activity details were unavailable.