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OTHER ASSETS, NET | 12 Months Ended
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Dec. 31, 2025
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |
OTHER ASSETS, NET | OTHER ASSETS, NET Other assets, net consisted of the following as of December 31, 2025 and 2024 (in millions):
| December 31, 2025 |  | December 31, 2024
Software development work in progress | $ | 12.0 |  |  | $ | 18.7 |
Data processing software | 137.0 |  |  | 126.4 |
Less accumulated depreciation and amortization | (101.9) |  |  | (98.3) |
Data processing software, net | 47.1 |  |  | 46.8 |
Long-term notes receivable, net (1) | 102.1 |  |  | 124.2 |
Other assets (2) | 10.5 |  |  | 11.7 |
Other assets, net | $ | 159.7 |  |  | $ | 182.7 |
________________________________________________________ (1)This balance primarily consists of the long-term notes receivable related to the CAT, net of allowance. See Note 8 ("Credit Losses") for more information. (2)The balance consists primarily of deferred tax assets and long-term prepaid assets. Amortization expense related to data processing software was $10.2 million, $10.3 million, and $8.4 million for the years ended December 31, 2025, 2024, and 2023, respectively. On July 23, 2025, the Company announced its decision to wind down Cboe's Japanese equities business, including the operations of its Cboe Japan proprietary trading system and Cboe BIDS Japan block trading platform. The Company suspended operations for these businesses on August 29, 2025, and expects to formally close the businesses subject to consultation with regulators. As a result, the Company recorded an impairment charge of $2.7 million related to data processing software in the consolidated statements of income for the three and nine months ended September 30, 2025. Subsequent to December 31, 2025, Cboe initiated the wind down of CEDX following a comprehensive strategic review of its global operations. As a result, the Company recorded an impairment charge of $5.6 million related to data processing software and prepaid expenses in the consolidated statements of income for the year ended December 31, 2025.

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