Cummins Stock Slumps 0.87% as Ethanol-Diesel Initiative Advances, $240M Volume Ranks 393rd in Market Activity

Cummins Inc. (CMI) closed on August 29, 2025, with a 0.87% decline, trading at a volume of $240 million, ranking 393rd in market activity. The stock’s performance followed developments in its joint ethanol/diesel dual-fuel initiative with Vale and Komatsu. The project, aimed at retrofitting mining haul trucks to run on up to 70% ethanol, advanced with the commissioning of low-carbon fuel test cells in Indiana. This milestone underscores the companies’ push to reduce greenhouse gas emissions by up to 70% in large mining operations, leveraging ethanol’s existing infrastructure in Brazil.

The collaboration aligns with Vale’s 2030 emissions reduction target and Komatsu’s focus on scalable decarbonization solutions. Cummins emphasized its role in developing bridge technologies, with field tests slated for 2026. The initiative reflects broader industry efforts to transition from diesel, with ethanol’s established supply chain offering a practical near-term alternative. Executives from all three companies highlighted the project’s potential to maintain operational efficiency while cutting carbon dioxide, nitrogen oxides, and particulate emissions.

Cummins’ test facilities, equipped to handle high-horsepower engines, support diverse fuel testing and data precision. The company’s Destination Zero strategy positions it to navigate energy transitions, though risks such as regulatory shifts and supply chain disruptions remain. The project’s success could reinforce Cummins’ leadership in sustainable power solutions, particularly in sectors reliant on heavy machinery.

Backtest results indicate CMI closed at a 0.87% decline on August 29, 2025, with a trading volume of $240 million.