On its third-quarter 2026 earnings call, held on Oct. 21, 2026, CSX (CSX +0.67%) announced a 30% increase in earnings per share over last year's adjusted result. Operational efficiency and steady volume growth continue to expand profit margins for long-term shareholders. Three things management said stand out.1. Nonfuel Cost Reductions Drive Profit Margins HigherManagement reduced nonfuel operating expenses while moving more freight, expanding operating margin by over four percentage points. Better asset ut ...