來源:[1] 芝加哥PMI跌至1.5年低點 - dshort - Advisor Perspectives (https://www.advisorperspectives.com/dshort/up ...)[2] 芝加哥PMI意外惡化 - Trading Economics (https://tradingeconomics.com/united-states/ch ...)[3] 芝加哥商業晴雨表11月意外暴跌 (https://www.nasdaq.com/articles/chicago-busin ...)