A variable interest entity (“VIE”) is an entity that lacks one or more of the following characteristics: (i) the total equity investment at risk is sufficient to enable the entity to finance its activities independently and (ii) the equity holders have the power to direct the activities of the entity that most significantly impact its economic performance, the obligation to absorb the losses of the entity and the right to receive the residual returns of the entity.

The Company will be considered to have a controlling financial interest and will consolidate a VIE if it has both (i) the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance and (ii) the obligation to absorb losses of the VIE or the right to receive benefits from the VIE that could potentially be significant to the VIE.

The Company has an interest in a joint venture (“JV”) that builds and maintains communication networks and related assets globally. The Company and its JV partners each pay monthly fees for the use of the communication networks in connection with their respective trading activities, and the JV may sell excess bandwidth that is not utilized by the JV members to third parties. As of June 30, 2026, the Company held a noncontrolling interest of 50.0% in the JV.

The Company has an interest in a JV that offers derivatives trading technology and execution services to broker-dealers, professional traders and select hedge funds. As of June 30, 2026, the Company held approximately a 9.8% noncontrolling interest in this JV.

The Company has an interest in a JV that operates a member-owned equities exchange with the goal of increasing competition and transparency, while reducing fixed costs and simplifying execution of equity trading in the U.S. As of June 30, 2026, the Company held approximately a 12.6% noncontrolling interest in this JV.

The Company has an interest in a JV that was formed for the purpose of developing and operating a cryptocurrency trading platform with the goal of increasing competition and transparency, while improving trading performance and reducing operational risk. As of June 30, 2026, the Company held approximately a 6.4% noncontrolling interest in this JV.

The Company’s JVs noted above meet the criteria to be considered VIEs, which it does not consolidate. The Company records its interest in the JVs under the equity method of accounting and records its investment in the JVs within Other assets and its amounts payable for communication services provided by the telecommunications JV within Accounts payable, accrued

expenses and other liabilities on the Statements of Financial Condition as applicable. The Company records its pro-rata share of the JVs’ earnings or losses within Other, net and fees related to the use of communication services provided by the telecommunications JV within Communications and data processing on the Condensed Consolidated Statements of Comprehensive Income.

The Company’s exposure to the obligations of these VIEs is generally limited to its interests in each respective JV, which is the carrying value of the equity investment in each JV.

The Company formed a JV to support the growth and expansion of a multi-asset request-for-quote communication platform in 2022. Upon the formation of the JV, the Company held a 51% controlling interest. The JV met the criteria to be considered a VIE, and based on the standard for control set forth above, the Company consolidated this entity and recorded the interest that the Company did not own as noncontrolling interest in the Condensed Consolidated Financial Statements. On May 9, 2025, the Company completed the sale of a 49% interest in the multi-asset request-for-quote communication platform JV. Upon the closing of the sale, the Company retains a minority interest of approximately 2% in RFQ-hub. The Company ceased to control, and deconsolidated, RFQ-hub at such time. See Note 3 “Sale of RFQ-hub” for further details.