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Significant Accounting Policies (Policies) | 12 Months Ended
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Dec. 31, 2025
Accounting Policies [Abstract] |
Basis of Presentation | Basis of Presentation The consolidated financial statements include the accounts of the Company and its subsidiaries. All intercompany transactions and balances have been eliminated.
Use of Estimates | Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Cash and Cash Equivalents | Cash and Cash Equivalents The Company defines cash equivalents as short-term interest-bearing investments with maturities at the time of purchase of three months or less.
Investments | Investments The Company determines the appropriate classification of securities at the time of purchase which are recorded in the Consolidated Statements of Financial Condition on the trade date. Securities are classified as available-for-sale or trading. Available-for-sale investments are carried at fair value with unrealized gains or losses reported in accumulated other comprehensive loss in the Consolidated Statements of Financial Condition and realized gains or losses reported in other, net in the Consolidated Statements of Operations. Trading investments include U.S. Treasuries and are carried at fair value, with realized and unrealized gains or losses included in other, net in the Consolidated Statements of Operations. The Company assesses whether an impairment loss on its available-for-sale debt securities has occurred due to declines in fair value or other market conditions. When the amortized cost basis of an available-for-sale debt security exceeds its fair value, the security is deemed to be impaired. The portion of an impairment related to credit losses is determined by comparing the present value of cash flows expected to be collected from the security with the amortized cost basis of the security and is recorded as a charge in the Consolidated Statements of Operations. The remainder of an impairment is recognized in accumulated other comprehensive loss if the Company does not intend to sell the security and it is more likely than not that the Company will not be required to sell the security prior to recovery.
Fair Value Financial Instruments | Fair Value Measurement Fair value is defined as “the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date.” A three-tiered hierarchy for determining fair value has been established that prioritizes inputs to valuation techniques used in fair value calculations. The three levels of inputs are defined as Level 1 (unadjusted quoted prices for identical assets or liabilities in active markets), Level 2 (inputs that are observable in the marketplace other than those inputs classified in Level 1) and Level 3 (inputs that are unobservable in the marketplace). The Company’s financial assets and liabilities measured at fair value on a recurring basis consist of its money market funds, trading securities, available-for-sale securities and foreign currency forward contracts. All other financial instruments are short-term in nature and the carrying amounts reported on the Consolidated Statements of Financial Condition approximate fair value.
Receivables from and Payables to Broker - dealers, Clearing Organizations and Customers | Receivables from and Payables to Broker-dealers, Clearing Organizations and Customers Receivables from broker-dealers, clearing organizations and customers include amounts receivable for securities not delivered by the Company to the purchaser by the settlement date (“securities failed-to-deliver”) and cash deposits held at clearing organizations and clearing brokers to facilitate the settlement and clearance of matched principal transactions. Payables to broker-dealers, clearing organizations and customers include amounts payable for securities not received by the Company from a seller by the settlement date (“securities failed-to-receive”). Securities failed-to-deliver and securities failed-to-receive for transactions executed on a matched principal basis where the Company serves as a counterparty to both the buyer and the seller are recorded on a settlement date basis within receivables from and payables to broker-dealers, clearing organizations and customers. The difference between the Company’s trade-date receivables and payables for unsettled matched principal transactions reflects commissions earned and is recorded within accounts receivable, net on a trade date basis.
Allowance for Credit Losses | Allowance for Credit Losses All accounts receivable have contractual maturities of less than one year and are derived from trading-related fees and commissions and revenues from products and services. The Company continually monitors collections and payments from its customers and maintains an allowance for doubtful accounts. The allowance for credit losses is based on the estimated expected credit losses in accounts receivable, as determined from a review of aging schedules, past due balances, historical collection experience and other specific collection issues that have been identified. Account balances are grouped for evaluation based on various risk characteristics, including billing type, legal entity, and geographic region. Additions to the allowance for credit losses are charged to bad debt expense, which is included in general and administrative expense in the Company’s Consolidated Statements of Operations. Balances that are determined to be uncollectable are written off against the allowance for credit losses. The allowance for credit losses was $0.7 million and $1.0 million as of December 31, 2025 and 2024, respectively. The provision for bad debts was $0.9 million, $0.8 million and $0.4 million for the years ended December 31, 2025, 2024 and 2023, respectively. Write-offs and other charges against the allowance for credit losses were $0.6 million, $0.4 million and $0.3 million for the years ended December 31, 2025, 2024 and 2023, respectively.
Furniture, Equipment and Leasehold Improvements | Furniture, Equipment and Leasehold Improvements Fixed assets are carried at cost less accumulated depreciation. The Company uses the straight-line method of depreciation over three to seven years. The Company amortizes leasehold improvements on a straight-line basis over the lesser of the life of the improvement or the remaining term of the lease.
Software Development Costs | Software Development Costs The Company capitalizes certain costs associated with the development of internal use software, including, among other items, employee compensation and related benefits and third-party consulting costs at the point at which the conceptual formulation, design and testing of possible software project alternatives have been completed. Once the product is ready for its intended use, such costs are amortized on a straight-line basis over three to five years. The Company reviews the amounts capitalized for impairment whenever events or changes in circumstances indicate that the carrying amounts of the assets may not be recoverable.
Leases | Leases At lease commencement, a right-of-use asset and a lease liability are recognized for all leases with an initial term in excess of 12 months based on the initial present value of the fixed lease payments over the lease term. The lease right-of-use asset also reflects the present value of any initial direct costs, prepaid lease payments and lease incentives. The Company’s leases do not provide a readily determinable implicit discount rate. Therefore, management estimates the Company’s incremental borrowing rate used to discount the lease payments based on the information available at lease commencement. The Company includes the term covered by an option to extend a lease when the option is reasonably certain to be exercised. Operating lease expense is recognized on a straight-line basis over the lease term and included as a component of occupancy and technology and communications expense in the Consolidated Statements of Operations.
Foreign Currency Translation and Forward Contracts | Foreign Currency Translation and Forward Contracts Assets and liabilities denominated in foreign currencies are translated using exchange rates at the end of the period; revenues and expenses are translated at average monthly rates. Gains and losses on foreign currency translation are a component of accumulated other comprehensive loss in the Consolidated Statements of Financial Condition. Transaction gains and losses are recorded in other, net in the Consolidated Statements of Operations. The Company enters into foreign currency forward contracts to economically hedge its foreign currency transaction gains and losses. Realized and unrealized gains and losses on these forward contracts are included in other, net in the Consolidated Statements of Operations. The Company records the fair value of the forward contract asset in prepaid expenses and other assets or the fair value of the forward contract liability in accounts payable, accrued expenses and other liabilities in the Consolidated Statements of Financial Condition.
Revenue Recognition | Revenue Recognition The Company’s classification of revenues in the Consolidated Statements of Operations represents revenues from contracts with customers disaggregated by type of revenue. The Company has four revenue streams as described below. Commission Revenue – The Company charges its broker-dealer clients variable transaction fees for trades executed on its platforms and, under certain plans, distribution fees or monthly minimum fees to use the platforms for a particular product area. Variable transaction fees are recognized on a trade date basis, are generally calculated as a percentage of the notional dollar volume of bonds traded on the platforms and vary based on the type, size, yield and maturity of the bond traded, as well as individual client incentives. Bonds that are more actively traded or that have shorter maturities generally generate lower commissions, while bonds that are less actively traded or that have longer maturities generally command higher commissions. Under the Company’s disclosed trading transaction fee plans, variable transaction fees, distribution fees and unused monthly fee commitments are invoiced and recorded on a monthly basis. For Open Trading trades that the Company executes between and among institutional investor and broker-dealer clients on a matched principal basis by serving as counterparty to both the buyer and the seller, the Company earns its commission through the difference in price between the two trades. The commission is collected upon settlement of the trade, which typically occurs within one to two trading days after the trade date. For the majority of the Company’s U.S. Treasury matched principal trades, commissions are invoiced and recorded on a monthly basis. The Company also earns equities and foreign exchange commissions for algorithmic trading services and, following the 2025 RFQ-hub Acquisition, derivative and exchange-traded-fund (“ETF”) commissions. These fees incorporate variable transaction fees, which are generally calculated as a percentage of the notional dollar volume traded and are billed on a monthly basis. The following table presents commission revenue by fee type:
| Year Ended December 31, |
| 2025 |  |  | 2024 |  |  | 2023 |
| (In thousands) |
Commission revenue by fee type |  |  |  |  |  |  |  |  |  |  |
Variable transaction fees |  |  |  |  |  |  |  |  |  |  |
Disclosed trading | $ |  | 376,599 |  |  | $ |  | 361,252 |  |  | $ |  | 323,038 |
Open Trading – matched principal trading |  |  | 175,557 |  |  |  |  | 177,966 |  |  |  |  | 178,517 |
U.S. government bonds - matched principal trading |  |  | 18,029 |  |  |  |  | 19,310 |  |  |  |  | 15,222 |
Other |  |  | 30,263 |  |  |  |  | 20,016 |  |  |  |  | 4,979 |
Total variable transaction fees |  |  | 600,448 |  |  |  |  | 578,544 |  |  |  |  | 521,756 |
Distribution fees and unused minimum fees |  |  | 134,175 |  |  |  |  | 133,166 |  |  |  |  | 141,208 |
Total commissions | $ |  | 734,623 |  |  | $ |  | 711,710 |  |  | $ |  | 662,964 |
Information services – Information services includes data licensed to the Company’s broker-dealer clients, institutional investor clients and data-only subscribers; professional and consulting services; technology software licenses; and maintenance and support services. The nature and timing of each performance obligation may vary as these contracts are either subscription-based services transferred over time, and may be net of volume-based discounts, or one-time services that are transferred at a point in time. Revenues for services transferred over time are recognized ratably over the contract period as the Company’s performance obligation is met, whereas revenues for services transferred at a point in time are recognized in the period the services are provided. Customers are generally billed monthly, quarterly, or annually; revenues billed in advance are deferred and recognized ratably over the contract period. The following table presents information services revenue by timing of recognition:
| Year Ended December 31, |
| 2025 |  |  | 2024 |  |  | 2023 |
| (In thousands) |
Information services revenue by timing of recognition |  |  |  |  |  |  |  |  |  |  |
Services transferred over time | $ |  | 51,941 |  |  | $ |  | 49,560 |  |  | $ |  | 45,102 |
Services transferred at a point in time |  |  | 1,289 |  |  |  |  | 980 |  |  |  |  | 1,281 |
Total information services revenues | $ |  | 53,230 |  |  | $ |  | 50,540 |  |  | $ |  | 46,383 |
Post-trade services – Post-trade services revenue is generated from regulatory transaction reporting, trade publication and post-trade matching services. Customers are generally billed monthly in arrears and revenue is recognized in the period transactions are processed. Revenues billed in advance are deferred and recognized ratably over the contract period. The Company also generates one-time implementation fees for onboarding clients, which are invoiced and recognized in the period the implementation is completed. The following table presents post-trade services revenue by timing of recognition:
| Year Ended December 31, |
| 2025 |  |  | 2024 |  |  | 2023 |
| (In thousands) |
Post-trade services revenue by timing of recognition |  |  |  |  |  |  |  |  |  |  |
Services transferred over time | $ |  | 44,319 |  |  | $ |  | 42,170 |  |  | $ |  | 40,061 |
Services transferred at a point in time |  |  | 172 |  |  |  |  | 317 |  |  |  |  | 117 |
Total post-trade services revenues | $ |  | 44,491 |  |  | $ |  | 42,487 |  |  | $ |  | 40,178 |
Technology services – Technology services revenue primarily includes technology-related license and connectivity fees and revenue generated from telecommunications line charges to broker-dealer clients. Customers may be billed monthly or quarterly in arrears or in advance, and revenue is recognized in the period transactions are processed. Revenues billed in advance are deferred and recognized ratably over the contract period. The following table presents technology services revenue by timing of recognition:
| Year Ended December 31, |
| 2025 |  |  | 2024 |  |  | 2023 |
| (In thousands) |
Technology services revenue by timing of recognition |  |  |  |  |  |  |  |  |  |  |
Services transferred over time | $ |  | 13,150 |  |  | $ |  | 12,334 |  |  | $ |  | 3,021 |
Services transferred at a point in time |  |  | 774 |  |  |  |  | 26 |  |  |  |  | 1 |
Total technology services revenues | $ |  | 13,924 |  |  | $ |  | 12,360 |  |  | $ |  | 3,022 |
Contract liabilities consist of deferred revenues that the Company records when cash payments are received or due in advance of services to be performed. Deferred revenues are included in accounts payable, accrued expenses and other liabilities on the Consolidated Statements of Financial Condition. The revenue recognized from contract liabilities and the remaining balance is shown below:
|  | December 31, 2024 |  |  | Revenue billed in advance of services to be performed |  |  | Revenue recognized for services performed during the period |  |  | Foreign Currency Translation |  |  | December 31, 2025 |
|  |  | (In thousands) |
Information services |  | $ |  | 3,302 |  |  | $ |  | 15,512 |  |  | $ |  | (15,471 | ) |  | $ |  | — |  |  | $ |  | 3,343 |
Post-trade services |  |  |  | 1,286 |  |  |  |  | 21,552 |  |  |  |  | (21,553 | ) |  |  |  | 91 |  |  |  |  | 1,376 |
Technology services |  |  |  | 415 |  |  |  |  | 5,943 |  |  |  |  | (6,046 | ) |  |  |  | — |  |  |  |  | 312 |
Total deferred revenue |  | $ |  | 5,003 |  |  | $ |  | 43,007 |  |  | $ |  | (43,070 | ) |  | $ |  | 91 |  |  | $ |  | 5,031 |
The majority of the Company’s information services and post-trade services contracts are short-term in nature with durations of one year or less. For contracts with original durations extending beyond one year, the aggregate amount of the transaction price allocated to remaining performance obligations was $28.3 million as of December 31, 2025. The Company expects to recognize revenue associated with the remaining performance obligations over the next 34 months.
Stock-Based Compensation | Stock-Based Compensation The Company measures and recognizes compensation expense for all share-based payment awards based on their estimated fair values measured as of the grant date. These costs are recognized as an expense in the Consolidated Statements of Operations over the requisite service period, which is typically the vesting period, with an offsetting increase to additional paid-in capital. Forfeitures are recognized as they occur.
Income Taxes | Income Taxes Income taxes are accounted for using the asset and liability method. Deferred income taxes reflect the net tax effects of temporary differences between the financial reporting and tax bases of assets and liabilities and are measured using the enacted tax rates and laws that will be in effect when such differences are expected to reverse. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. A valuation allowance is recognized against deferred tax assets if it is more likely than not that such assets will not be realized in future years. Tax benefits for uncertain tax positions are recognized when it is more likely than not that the positions will be sustained upon examination based on their technical merits. The Company recognizes interest and penalties related to unrecognized tax benefits in the provision for income taxes in the Consolidated Statements of Operations. All tax effects related to share-based payments are recorded in the provision for income taxes in the periods during which the awards are exercised or vest.
Business Combinations, Goodwill and Intangible Assets | Business Combinations, Goodwill and Intangible Assets Business combinations are accounted for under the purchase method of accounting. The total cost of an acquisition is allocated to the underlying net assets based on their respective estimated fair values. The excess of the purchase price over the estimated fair values of the net assets acquired is recorded as goodwill. Determining the fair value of certain assets acquired and liabilities assumed requires judgment and often involves the use of significant estimates and assumptions, including assumptions with respect to future cash flows, discount rates, revenue growth rates, customer attrition rates, royalty rates, technological obsolescence, contributory asset charges and asset lives. Intangible assets are valued using various methodologies, including the relief-from-royalty method and multi-period excess earnings method. The Company operates as a single reporting unit. Following an acquisition, goodwill no longer retains its identification with a particular acquisition, but instead becomes identifiable with the entire reporting unit. As a result, all of the fair value of the Company is available to support the value of goodwill. An impairment review of goodwill is performed on an annual basis, at year-end, or more frequently if circumstances change. Intangible assets with definite lives, including purchased technologies, customer relationships and other intangible assets, are amortized over their estimated useful lives which range from one to 15 years using either a straight-line or accelerated amortization method based on the pattern of economic benefit the Company expects to realize from such assets. Intangible assets are assessed for impairment when events or circumstances indicate the existence of a possible impairment.
Equity Investments and Consolidation | Equity Investments and Consolidation The Company evaluates equity investments for potential consolidation under the voting-interest or variable-interest models. The Company consolidates investees over which the Company determines it has control under the voting interest model, generally greater than 50.0% ownership, or for which the Company is the primary beneficiary under the variable-interest model. The Company uses the equity method of accounting when it exercises significant influence over the investee, but does not have operating control, generally between 20.0% and 50.0% ownership. Under the equity method of accounting, original investments are recorded at cost in prepaid expenses and other assets on the Consolidated Statements of Financial Condition and adjusted by the Company’s proportionate share of the investees’ undistributed earnings or losses. Equity investments are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the investment may not be recoverable.
Earnings Per Share | Earnings Per Share Basic earnings per share is computed by dividing the net income attributable to common stock by the weighted-average number of shares of common stock outstanding during the period. For purposes of computing diluted earnings per share, the weighted-average shares outstanding of common stock reflects the dilutive effect that could occur if convertible securities or other contracts to issue common stock were converted into or exercised for common stock.
Recent Accounting Pronouncements | Recent Accounting Pronouncements In December 2023, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“ASU”) 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The ASU requires disaggregated information about a reporting entity’s effective tax rate reconciliation and income taxes paid. The ASU is effective for the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2025. The guidance has been adopted by the Company on a retrospective basis and resulted in additional disclosures within Footnote 9, Income Taxes, but did not have an impact on the Company’s consolidated statements of financial condition, operations and cash flows. In November 2024, the FASB issued ASU 2024-03, Disaggregation of Income Statement Expenses. The ASU primarily will require enhanced disclosures about certain types of expenses. The amendments in ASU 2024-03 are effective for fiscal years beginning after December 15, 2026 and interim periods within fiscal years beginning after December 15, 2027, and may be applied either on a prospective or retrospective basis. The Company is currently evaluating the impact of the standard on its disclosures.

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