Kirby Corporation's stock experienced a pre-market plunge of 5.33% on Thursday, following the release of its fourth-quarter financial results.

The company reported Q4 net earnings of $91.8 million, or $1.68 per diluted share, which exceeded analyst expectations of $1.62 per share. However, revenue for the quarter came in at $851.8 million, slightly below the consensus estimate of $857.1 million.

This revenue miss appears to have driven the negative market reaction in pre-market trading, as investors focused on the top-line performance despite the earnings beat. Kirby's management noted that 2026 earnings per share are expected to be flat to up 12% year-over-year, with improving market fundamentals across both marine transportation and distribution services segments.