伊士曼化工（Eastman Chemical Co.，EMN）收跌19%，创该公司美国IPO以来最差单日表现，此前所给三季度业绩指引逊色于市场预期。

Core Viewpoint - Eastman Chemical Co. (EMN) experienced a 19% decline in stock price, marking its worst single-day performance since its IPO in the U.S., following a third-quarter earnings guidance that fell short of market expectations [1] Company Summary - The company's third-quarter performance guidance was disappointing compared to market forecasts, leading to a significant drop in stock value [1]