What does the stabilization of North American chemical rail traffic indicate about underlying industrial activity in the US economy?

According to the Association of American Railroads (AAR), chemical traffic 'continues to provide one of the strongest signals of underlying industrial activity within the US economy,' and its near-record levels in April—supported by steady manufacturing demand, favorable petrochemical production economics, and continued activity across construction, packaging, and agricultural markets—suggest that 'industrial activity remains firmer than broader economic sentiment might suggest.'

How did North American chemical railcar volumes perform for the week ended May 9, and how do they compare year-over-year and to seasonal trends?

For the week ended May 9, chemical railcar volume in North America totaled 50,134 carloads—down 1.9% from the previous week but up 8.1% year over year; the four-week moving average (4wma) was 50,122 carloads—down 0.1% sequentially, up 2.8% year over year, and up 7.8% from the 2016–2025 seasonal trendline.

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North America Weekly Chemical Rail Stabilizes Below March Peak

May 15, 2026

North American chemical rail traffic stabilized near record highs following a March peak, per Association of American Railroads data. Shipments remain robust driven by manufacturing demand and favorable petrochemical economics.

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