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v3.25.2

SUBSEQUENT EVENTS (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 6 Months Ended | 174 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 | Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025
Subsequent Events |  |  |  |  |  |
Revenues less cost of revenues: |  | $ 587.3 | $ 513.8 | $ 1,152.5 | $ 1,015.9 |
Number of shares of common stock repurchased (in shares) |  | 160,564 | 514,239 |  |  | 21,063,700
Average price paid per share (in dollars per share) |  | $ 219.77 | $ 175.76 |  |  | $ 80.02
Total purchase price |  | $ 35.3 | $ 90.4 |  |  | $ 1,700.0
Availability remaining under existing share repurchase authorizations |  | 614.5 | $ 204.4 | 614.5 | $ 204.4 | $ 614.5
Cboe Japan | Europe and Asia Pacific |  |  |  |  |  |
Subsequent Events |  |  |  |  |  |
Revenues less cost of revenues: |  | $ 3.3 |  | $ 7.6 |  |
Cboe Japan | Europe and Asia Pacific | Gross Profit Benchmark | Geographic Concentration Risk |  |  |  |  |  |
Subsequent Events |  |  |  |  |  |
Concentration risk, percentage of total revenue |  | 5.00% |  | 6.00% |  |
Subsequent Event | Europe and Asia Pacific |  |  |  |  |  |
Subsequent Events |  |  |  |  |  |
Impairment of intangible assets | $ 4.6 |  |  |  |  |

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