Shares of Norfolk Southern Corporation (NSC) gained 6.78% in after-market trading on Jul 25, 2024.  The upside was owing to the solid second-quarter 2024 results wherein both earnings and revenues surpassed the Zacks Consensus Estimate.Quarterly earnings of $3.06 per share surpassed the Zacks Consensus Estimate of$2.85 and improved 4% year over year.Railway operating revenues were $3.044 billion in the quarter under review, surpassing the Zacks Consensus Estimate of$3.022 billion. The top line increased 2 ...