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Credit Agreements and Short-term Financing | 9 Months Ended
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Sep. 30, 2025
Debt Disclosure [Abstract] |
Credit Agreements and Short-term Financing | 11. Credit Agreements and Short-term Financing Credit Agreement On August 9, 2023, the Company entered into a three-year revolving credit facility (the “Credit Agreement”) provided by a syndicate of lenders and JPMorgan Chase Bank, N.A., as administrative agent, which provides aggregate commitments totaling $750.0 million, including a revolving credit facility, a $5.0 million letter of credit sub-limit for standby letters of credit and a $380.0 million sub-limit for swingline loans. The Credit Agreement will mature on August 9, 2026, with the Company’s option to request up to two additional 364-day extensions at the discretion of each lender and subject to customary conditions. Subject to satisfaction of certain specified conditions, the Company is permitted to upsize the Credit Agreement by up to $375.0 million in total. As of September 30, 2025, the Company had $0.1 million in letters of credit outstanding and $749.9 million in available borrowing capacity under the Credit Agreement. Borrowings under the Credit Agreement will bear interest at a rate per annum equal to an alternate base rate or the adjusted term Secured Overnight Financing Rate (“SOFR”) rate, plus an applicable margin that varies with the Company’s consolidated total leverage ratio. The Credit Agreement requires that the Company satisfy certain covenants, including a requirement not to exceed a maximum consolidated total leverage ratio. The Company incurred no interest expense under the Credit Agreement for the three and nine months ended September 30, 2025. The Company incurred no interest expense and $0.2 million of interest expense under the Credit Agreement for the three and nine months ended September 30, 2024, respectively. Uncommitted Collateralized Agreements In connection with their self-clearing operations, certain of the Company’s U.S. and U.K. operating subsidiaries maintain agreements with a settlement bank to allow the subsidiaries to borrow in the aggregate of up to $500.0 million on an uncommitted basis, collateralized by eligible securities pledged by the subsidiaries to the settlement bank, subject to certain haircuts. Borrowings under these agreements will bear interest at a base rate per annum equal to 1.00% plus the higher of (i) the upper range of the Federal Funds Rate, (ii) one-month SOFR plus an applicable margin or (iii) 0.25%. The Company incurred no interest expense on borrowings under such agreements during each of the three and nine months ended September 30, 2025, and incurred $0.1 million of interest expense during the three and nine months ended September 30, 2024. As of September 30, 2025, the Company had no borrowings outstanding and up to $500.0 million in available uncommitted borrowing capacity under such agreements. Short-term Financing Under arrangements with their settlement banks, certain of the Company’s U.S. and U.K. operating subsidiaries may receive overnight financing in the form of bank overdrafts. The Company incurred interest expense on such overnight financing of $0.2 million and $0.3 million during the three months ended September 30, 2025 and 2024, respectively, and $0.5 million and $1.1 million during the nine months ended September 30, 2025 and 2024, respectively. As of September 30, 2025, the Company had no overdrafts payable outstanding.

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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8A -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-8A Reference 2: http://www.xbrl.org/2003/role/disclosureRef 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