Core Viewpoint - U.S. stock futures are experiencing a significant decline, with the Nasdaq 100 futures down by 1%, S&P 500 futures down by 0.9%, and Dow futures also down by 0.9% [1] Group 1 - Nasdaq 100 futures have decreased by 1% [1] - S&P 500 futures have fallen by 0.9% [1] - Dow futures have dropped by 0.9% [1]