Shares closed at $682.88 as the S&P 500 fell 0.38% and the Dow Jones Industrial Average lost 0.63% on Thursday.
The decline ended a two-day winning streak and left Cummins 4.80% below its 52-week high of $717.33 reached on May 6.
Cummins underperformed Caterpillar, down 3.37%, and Paccar, down 2.11%, while Aptiv rose 0.55%; trading volume of 1.1 million topped its 50-day average.
After record earnings and a guidance upgrade, why did Cummins stock suffer such a dramatic one-day plunge?
With insiders selling millions in shares, should investors be concerned despite the company's glowing financial report?
Can the AI-driven data center boom truly offset the decline in Cummins' traditional truck engine market?