美股三大指数集体低开，黄金股回落

Core Viewpoint - The risk of a U.S. government shutdown is putting pressure on the U.S. stock market, leading to a collective decline in the three major indices [1] Group 1: Stock Market Performance - The Dow Jones Industrial Average opened lower, down by 0.04% [1] - The S&P 500 index also saw a decline, falling by 0.06% [1] - The Nasdaq Composite index experienced a similar drop, decreasing by 0.06% [1] Group 2: Gold Stocks - Gold stocks retreated, with Harmony Gold and Hecla Mining both dropping over 3% [1]