Corning results hit by weakness in optical fiber unit, shares fall

Core Viewpoint - Corning forecasts fourth-quarter sales exceeding analysts' estimates, indicating positive market expectations despite challenges in its largest business unit [1] Group 1: Sales Forecast - Corning anticipates fourth-quarter sales to be above analysts' expectations, suggesting a strong performance in other segments [1] Group 2: Business Unit Performance - Revenue from Corning's largest business unit, which produces fiber optic products, fell short of expectations, highlighting potential weaknesses in this segment [1]