Core Viewpoint - U.S. stock-index futures experienced a strong rebound on Sunday after a significant market decline on Friday, which was triggered by President Donald Trump's threat of imposing an additional 100% tariffs on China [1] Group 1 - The market decline on Friday was a direct response to the tariff threat from President Trump [1] - The strong rebound in futures indicates a potential recovery sentiment among investors following the tariff announcement [1]