美国10年期国债收益率短线跳水约5个基点，至4.26%下方，日内整体跌7.4个基点。黄金转而涨0.3%，刷新日高，逼近3350美元。标普涨1.3%，道指涨688点涨幅扩大至超过1.5%，纳指涨265点涨超1.1%。美联储主席鲍威尔称，风险平衡的转变可能需要调整政策

Group 1 - The yield on the 10-year U.S. Treasury bond dropped approximately 5 basis points to below 4.26%, with an overall decline of 7.4 basis points for the day [1] - Gold prices increased by 0.3%, reaching a new daily high and approaching $3,350 [1] - The S&P 500 rose by 1.3%, the Dow Jones gained 688 points with an increase exceeding 1.5%, and the Nasdaq climbed 265 points, up over 1.1% [1] Group 2 - Federal Reserve Chairman Jerome Powell indicated that a shift in risk balance may necessitate adjustments to policy [1]