Vistra Corp.

8. COLLATERAL FINANCING AGREEMENT WITH AFFILIATE

In 2023, Vistra Operations entered into a facility agreement with a Delaware trust formed by the Company (the Trust) that sold 450,000 pre-capitalized trust securities (P-Caps) redeemable May 17, 2028 for an initial purchase price of $450 million. The Trust is not consolidated by Vistra. The Trust invested the proceeds from the sale of the P-Caps in a portfolio of either (a) U.S. Treasury securities (Treasuries) or (b) Treasuries and/or principal and interest strips of Treasuries (Treasury Strips, and together with the Treasuries and cash denominated in U.S. dollars, (the Eligible Assets). At the direction of Vistra Operations, the Eligible Assets held by the Trust can be (i) delivered to one or more designated subsidiaries of Vistra Operations in order to allow such subsidiaries to use the Eligible Assets to meet certain posting obligations with counterparties, and/or (ii) pledged as collateral support for a letter of credit program.

As of June 30, 2025 and December 31, 2024, the fair value of Eligible Assets held by counterparties to satisfy current and future margin deposit requirements totaled $445 million and $435 million, respectively, and is reported in the condensed consolidated balance sheets as margin deposits posted under affiliate financing agreement and margin deposits financing with affiliate. See Note 8 to the Financial Statements in our 2024 Form 10-K for additional information.