The Cass Freight Index®

Get the latest insight into North American freight volumes and expenditures with the industry's most trusted source of data.

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A Measure of North American Freight Volumes

Since 1995, the Cass Freight Index® has been a trusted measure of the North American freight market. Our monthly data and the Cass Transportation Index Report provide valuable insight into freight trends as they relate to other economic and supply chain indicators and the overall economy.

Data within the Index includes all domestic freight modes and is derived from ~36 million invoices and $28 billion in spend processed by Cass annually on behalf of its client base of hundreds of large shippers. These companies represent a broad sampling of industries including consumer packaged goods, food, automotive, chemical, medical/pharma, OEM, retail and heavy equipment. Annual freight volume per organization ranges from $40 million to over $2 billion. The diversity of shippers and aggregate volume provide a statistically valid representation of North American shipping activity.

Read our monthly report for analysis and commentary on the Cass Freight Index as well as our two cost indexes, the Cass Truckload Linehaul Index® and Cass Intermodal Price Index®.

Chart 1: Cass Freight Index - Shipments

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Chart 2: Cass Freight Index - Expenditures

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How the Index Works

The Cass Freight Index uses January 1990 as its base month. The index is updated with monthly freight expenditures and shipment volumes from the entire Cass client base. Data represents the month in which transactions (invoices) are processed by Cass, not necessarily the month when the corresponding shipments took place. The January 1990 base point is 1.00. The Index point for each subsequent month represents that month’s volume in relation to the January 1990 baseline.

Each month’s values are adjusted to a 21-day work month and to compensate for new and lost business. These measures ensure a sound basis for ongoing monthly comparison.