The term rolling stock in the rail transport industry refers to railway vehicles, including both powered and unpowered vehicles, for example locomotives, railroad cars, coaches, private railroad cars and wagons. In the US, the definition has been expanded from the older broadly defined "trains" to include wheeled vehicles used by businesses on roadways.
The word "stock" in the term is used in a sense of inventory. Rolling stock is considered to be a liquid asset, or close to it, since the value of the vehicle can be readily estimated and then shipped to the buyer without much cost or delay.
In Great Britain, types of rolling stock were given code names, often of animals. For example, "Toad" was used as a code name for the Great Western Railway goods brake van, while British Railways wagons used for track maintenance were named after fish, such as "Dogfish" for a ballast hopper. These codes were telegraphese, somewhat analogous to the SMS language of today.
- "Yaxham Light Railway rolling stock page".
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- Illinois Department of Revenue. "RUT-7: Rolling Stock Certification" (PDF). Retrieved January 27, 2017.
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- Finger, Matthias; Bert, Nadia; Kupfer, David, eds. (2014). "Rail infrastructure and rolling stock: investments, asset renewal and regulation" (PDF). European University Institute, Florence School of Regulation. pp. 8–9.
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- "Code Names for Great Western Carriage Stock and Vans". greatwestern.org.uk.
- "Fishkinds and TOPS". btinternet.com. Archived from the original on 11 October 2012.