Core Viewpoint - The stock market experienced significant selling pressure, primarily driven by a surge in international oil prices on a day when the Federal Reserve's decisions were anticipated [1]. Group 1: Stock Market Performance - The Dow Jones Industrial Average decreased by 407 points, equivalent to a 0.9% drop [1]. - The S&P 500 index fell by 0.6% [1]. - The Nasdaq Composite also saw a decline of 0.6% [1]. Group 2: Oil Prices - Brent crude oil futures increased by 6.1%, reaching $109.74 per barrel [1]. - WTI crude oil futures rose by 3.2%, reaching $99.27 per barrel [1].