On August 18, Cummins declined 3.1% in regular trading, trading at approximately $621.29/share, with turnover of $1.5 billion. The stock was weighed down by broad-based weakness across the Construction Machinery and Heavy Trucks sector, as industry bellwether Caterpillar led the selloff with a decline of nearly 4.75%.

On the news front, Cummins announced that its Power Generation division was selected to supply battery energy storage systems for a large unnamed US data center project, designed to manage AI-driven load fluctuations. However, the company did not disclose financial details of the contract, limiting the positive impact of the announcement and failing to offset sector-wide selling pressure.

Within the Construction Machinery and Heavy Trucks sector, Caterpillar fell 4.69%, PACCAR declined 1.73%, Westinghouse Air Brake dropped 1.56%, and Allison Transmission lost 1.13%. The sector downturn broadly dragged individual stock performance despite constructive longer-term fundamentals including robust data center power demand and a recovering North American truck market.

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