Note 7. Disaggregated Revenue
The following table presents revenue disaggregated by type:
Year ended December 31,202520242023
Transactional seller revenue$928.8 $939.4 $851.7 
Transactional buyer revenue2,238.3 2,067.1 1,593.2 
Marketplace services revenue335.1 357.1 287.6 
Total service revenue3,502.2 3,363.6 2,732.5 
Inventory sales revenue1,088.5 920.6 947.1 
Total revenue$4,590.7 $4,284.2 $3,679.6 
The following table presents revenue disaggregated by geographic area, based on the location of the underlying auction activity or rendering of services:
Year ended December 31,202520242023
United States$3,307.2 $3,094.1 $2,591.6 
Canada695.6 640.6 551.5 
Europe338.9 333.0 321.8 
Australia151.2 137.2 136.7 
Other97.8 79.3 78.0 
Total revenue$4,590.7 $4,284.2 $3,679.6 

Historical Timeline

Fiscal YearFiled
2025Feb 25, 2026Showing above
2024Feb 26, 2025
2023Feb 28, 2024
2022Feb 21, 2023
2021Feb 17, 2022
2020Feb 18, 2021
2019Feb 27, 2020
2018Feb 28, 2019
2017Feb 26, 2018
2016Feb 21, 2017
2015Feb 25, 2016

About Revenue Disclosures

Revenue disclosures under ASC 606 explain how a company identifies performance obligations, allocates transaction prices, and determines when revenue is recognized. This section is essential for understanding whether reported revenue reflects genuine economic activity or aggressive accounting choices. Analysts examine the mix of point-in-time versus over-time recognition, which directly affects revenue timing and comparability.

Key signals: rising contract liabilities (deferred revenue) suggest strong future revenue visibility, while declining contract assets may indicate slowing project milestones. Watch for variable consideration estimates — rebates, returns, and performance bonuses that require management judgment. Significant changes in disaggregated revenue by geography or product line can reveal shifting business mix before it appears in headline numbers. Compare revenue growth against contract liability growth to assess sustainability, and scrutinize any changes in the timing of recognition that coincide with earnings pressure.