Vistra 10-Q 2026-06-30

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2026

— OR —

For the transition period from __ to __

Commission File Number 001-38086

Vistra Corp.

(Exact name of registrant as specified in its charter)

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer ☒ Accelerated filer ☐ Non-accelerated filer ☐ Smaller reporting company ☐ Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

Indicate the number of shares outstanding of each of the registrant's classes of common stock, as of the latest practicable date.

TABLE OF CONTENTS

i

GLOSSARY OF TERMS AND ABBREVIATIONS

When the following terms and abbreviations appear in the text of this report, they have the meanings indicated below.

ii

iii

iv

FORWARD-LOOKING STATEMENTS

This quarterly report on Form 10-Q contains forward-looking statements that involve risks and uncertainties. All statements, other than statements of historical facts, that are included in this report, or made in presentations, in response to questions or otherwise, that address activities, events or developments that may occur in the future, including (without limitation) such matters as activities related to our financial or operational projections, capital allocation, capital expenditures, liquidity, dividend policy, business strategy, competitive strengths, goals, future acquisitions or dispositions, development or operation of power generation assets, market and industry developments, and the growth of our businesses and operations, including potential transactions with large load facilities at our nuclear and natural gas plants (often, but not always, through the use of words or phrases such as "intends," "plans," "potential," "will likely," "unlikely," "believe," "expect," "anticipated," "estimate," "should," "could," "may," "projection," "forecast," "target," "goal," "objective," and "outlook"), are forward-looking statements. Although we believe that in making any such forward-looking statement our expectations are based on reasonable assumptions, any such forward-looking statement involves uncertainties and risks that could cause our actual results to differ materially from those projected in or implied by such forward-looking statement. Any such forward-looking statement is qualified in its entirety by reference to the discussion in (i) Part I, Item 1A. Risk Factors and Part II, Item 7. Management's Discussion and Analysis of Financial Condition, and Results of Operations in our 2025 Form 10-K, and (ii) Part I, Item 2. Management's Discussion and Analysis of Financial Condition, and Results of Operations in this quarterly report on Form 10-Q.

Any forward-looking statement speaks only at the date on which it is made, and except as may be required by law, we undertake no obligation to update any forward-looking statement to reflect events or circumstances after the date on which it is made or to reflect the occurrence of unanticipated events or circumstances. New factors emerge from time to time, and it is not possible for us to predict them. In addition, we may be unable to assess the impact of any such event or condition or the extent to which any such event or condition, or combination of events or conditions, may cause results to differ materially from those contained in or implied by any forward-looking statement. As such, you should not unduly rely on such forward-looking statements.

v

PART I. FINANCIAL INFORMATION

VISTRA CORP.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited) (Millions of Dollars, Except Share Data)

See Notes to Condensed Consolidated Financial Statements

See Notes to Condensed Consolidated Financial Statements

Showing the first 8K of 255K characters. Open the full section

The following discussion and analysis of our financial condition and results of operations should be read together with the condensed consolidated financial statements and related notes included in Part I, Item 1. Financial Statements.

Business Environment and Outlook

Electricity Demand

Electricity demand drivers including the rise of large scale data centers, the electrification of oil field operations, and electric vehicle load building are contributing to a projected fast-paced load growth in the regions we serve. Our integrated retail electricity and power generation operations allow us to quickly respond to electricity demand changes. To support growing demand from large‑scale electricity consumers, we continue to engage in discussions with various counterparties regarding the potential long-term sale of power from our generation facilities, and we are progressing a series of development initiatives across our generation portfolio, including nuclear uprates and other capacity expansions.

Supply Chain Constraints

Our industry continues to face ongoing supply chain constraints and labor shortages, which have reduced the availability of essential equipment and supplies for constructing new generation facilities, increased the lead times for procuring materials, and raised equipment and labor costs associated with maintaining our natural gas, nuclear, and coal fleet.

We are proactively managing these constraints by continuously re-evaluating the business cases and timing of our planned development projects. This has led to the deferral or abandonment of some planned capital expenditures for our solar and battery projects and could impact the economic feasibility of additional projects in our new generation development pipeline. We are engaging with suppliers to secure key materials needed to maintain our existing generation facilities before future planned outages.

Iran Conflict

We are monitoring the conflict involving the United States, Israel, and Iran and related instability in the Middle East, including the potential for further escalation and disruption. Although the Company does not conduct operations in the affected region, prolonged or expanded instability could indirectly affect the Company through broader macroeconomic and commodity-market impacts, including changes in natural gas and power prices, supply-chain disruptions, construction delays, increased inflationary pressures, and capital-market volatility, which could impact our future results of operations. See Factors Affecting Our Financial Condition and Results of Operations — Commodity Prices for additional information on our commodity hedging strategy and estimated hedging levels for the balance of 2026 and 2027.

Noteworthy Developments

Capacity Markets — PJM Auction Results

In July 2026, Vistra received its results from the PJM Capacity Auction for planning year 2028-2029, and the table below lists clearing price per MW-day and our cleared capacity volumes by zone:

VISTRA CORP.

Strategic Investment in Digital Infrastructure

In June 2026, the Company entered into a limited partnership agreement governing KKR Helix C L.P. (the Helix Fund), an open-ended investment fund managed by affiliates of KKR & Co. Inc. (KKR). As a founding investor in the Helix Fund, the Company committed up to $1 billion consisting of (i) an initial $500 million commitment and (ii) an additional $500 million commitment subject to the Helix Fund meeting certain commercial power supply milestones for our existing generation assets or, at the Company's election, regardless of whether such milestones are achieved.

The Helix Fund will seek to invest in and manage assets critical to enabling artificial intelligence (AI), including hyperscale data center development and operations; baseload and flexible power generation; transmission and distribution infrastructure; and fiber and connectivity infrastructure, among other assets. This investment reflects our strategy to participate in the growing demand for power generation assets supporting hyperscale data center development, while leveraging our existing fleet and development capabilities.

Gas Plants Disposition

In June 2026, Vistra Operations entered into a purchase and sale agreement for the sale of our Casco Bay, Beaver Falls, and Syracuse natural gas generation facilities (the Disposal Group). The transaction is expected to close in the second half of 2026, subject to customary closing conditions, including receipt of applicable regulatory approvals. The related assets and liabilities of the Disposal Group were classified as held for sale as of June 30, 2026 and are reported in the East segment. See Note 2 to the Financial Statements for additional information.

Planned Gas-Fueled Dispatchable Power in ERCOT

In May 2024, we announced our intention to add up to 2,000 MW of dispatchable, natural gas-fueled electricity capacity in west, central, and north Texas consisting of the following projects:

• Building up to 860 MW of advanced simple-cycle peaking plants to be located in west Texas to support the increasing power needs of the region, including the state's oil and gas industry. Early development work is underway on this project which we anticipate will be online in 2028.

• Repowering the coal-fueled Coleto Creek Power Plant near Goliad, Texas, set to retire in 2026 to comply with EPA rules, as a natural-gas-fueled plant with up to 600 MW of capacity.

• Completing upgrades at existing natural-gas-fueled plants that will add more than 500 MW of summer capacity and 100 MW of winter capacity.

In June 2026, Permian Power entered into a $583 million loan agreement with the Texas Energy Fund (TxEF) to finance the development of the 860 MW peaking plant in west Texas (TxEF Loan). The loan is non-recourse to Vistra, and interest on the TxEF Loan is calculated at a fixed rate of 3.0% per annum. As of June 30, 2026, $172 million was outstanding under the agreement.

Collateral Release

On December 2, 2025, S&P upgraded Vistra Operations' issuer credit rating from BB+ to BBB- and revised its outlook from Positive to Stable, and on March 20, 2026, S&P upgraded the Senior Unsecured Notes rating from BB+ to BBB-. On March 16, 2026, Fitch upgraded Vistra Operations' issuer default rating and the Senior Unsecured Notes rating from BB+ to BBB- and revised its outlook from Positive to Stable. As a result of these investment-grade ratings and the satisfaction of certain other conditions specified in the Vistra Operations Senior Secured Indenture, an investment-grade event was deemed to have occurred, and the liens on the collateral securing the Senior Secured Notes were automatically terminated and released in full on April 2, 2026 (Indenture Collateral Release).

The Indenture Collateral Release represents the elimination of the collateral and related lien provisions under the Vistra Operations Senior Secured Indenture only and did not modify, refinance, extinguish, or otherwise change the outstanding principal amount, maturity, interest rates, or other material terms of the Senior Secured Notes. Following the Indenture Collateral Release, the Senior Secured Notes are effectively unsecure

Showing the first 8K of 98K characters. Open the full section

In the normal course of business, our financial position is routinely subject to a variety of risks, including market risks associated with (i) changes in commodity prices, (ii) interest rate movements on outstanding debt, and (iii) credit risk, which is the risk of financial loss if a customer, counterparty, or financial institution is unable to perform or pay amounts due to us.

Market risks are monitored by our risk management group which operates independently of the wholesale commercial operations, utilizing defined practices and analytical methodologies. These practices and methodologies measure the risk of change in value of the portfolio of contracts and the hypothetical effect on this value from changes in market conditions. Measurement techniques include, but are not limited to, position reporting and review, Value at Risk (VaR) methodologies and stress test scenarios. Risk management regularly reports their analysis to the Company's Risk Committee and Executive Committee, and to the Sustainability and Risk Committee of the Board.

Commodity Price Risk and Oversight

Our business is subject to the inherent risks of market fluctuations in the price of commodities for energy-related products we market or purchase in futures markets including electricity, natural gas, uranium, coal, environmental credits and other energy commodities in competitive wholesale markets. Factors that influence these market fluctuations are dependent upon many factors outside of our control including seasonal changes in supply and demand, weather conditions, market liquidity, governmental, regulatory, and environmental policies.

VISTRA CORP.

We manage the commodity price and commodity-related operational risk related to the competitive energy business within limitations established by senior management and in accordance with overall risk management policies. In managing commodity price risk, we enter into a variety of market transactions including, but not limited to, short- and long-term contracts for physical delivery, exchange-traded and over-the-counter financial contracts and bilateral contracts with customers. Similar to other participants in the market, we cannot fully manage the long-term value impact of structural declines or increases in natural gas and power prices. Our nuclear fleet is eligible for the nuclear PTC provided by the IRA which provides increasing levels of support as unit revenues decline below levels established in the IRA and is further adjusted annually for inflation over the duration of the program.

VaR Methodology

A VaR methodology is used to measure the amount of market risk that exists within the portfolio under a variety of market conditions. The resultant VaR produces an estimate of a portfolio's potential for loss given a specified confidence level and considers, among other things, market movements utilizing standard statistical techniques given historical and projected market prices and volatilities.

Parametric processes are used to calculate VaR and are considered by management to be the most effective way to estimate changes in a portfolio's value based on assumed market conditions for liquid markets. This measurement estimates the potential loss in value, due to changes in market conditions, of all underlying generation assets and contracts. The use of this method requires a number of key assumptions, such as use of (i) an assumed confidence level, (ii) an assumed holding period (i.e., the time necessary for management action, such as to liquidate positions), and (iii) historical estimates of volatility and correlation data.

The following table summarizes the VaR for Vistra's commodity portfolio based on a 95% confidence level and an assumed holding period of 60 days. Average VaRs are the average of each month-end average for the six months ended June 30, 2026 and the year ended December 31, 2025, respectively.

Interest Rate Risk

We are exposed to fluctuations in interest rates through our issuance of variable rate debt. We mitigate our exposure to fluctuations in interest rates through entering interest rate swaps. These interest rate swaps limit the impact of interest rate changes on our results of operations and cash flows and lower our overall borrowing costs. Interest rate risk is managed centrally by our treasury function.

As of June 30, 2026, we have approximately $1.461 billion principal amount of variable rate debt consisting of the BCOP Credit Facility and the Vistra Zero Term Loan B Facility (see Note 12 to the Financial Statements for additional information). We have entered into net notional interest rate swaps that will hedge $414 million of our project-level debt through October 2045 (see Note 13 to the Financial Statements for additional information). As of June 30, 2026, the potential reduction of annual pretax earnings over the next twelve months due to a one percentage-point (100 basis points) increase in floating interest rates on long-term debt totaled approximately $10 million after taking into account the interest rate swaps.

Credit Risk

Our primary concentration of credit risk is associated with the collection of receivables resulting from sales to retail customers and the risk of a counterparty's failure to meet its obligations under derivative contracts. We minimize our exposure to credit risk by evaluating potential counterparties, monitoring ongoing counterparty risk and assessing overall portfolio risk. This includes review of counterparty financial conditions, current and potential credit exposures, credit rating and other quantitative and qualitative credit criteria. We also employ certain risk mitigation practices, including utilization of standardized master agreements that provide for netting and setoff rights, as well as credit enhancements such as margin deposits and customer deposits, letters of credit, parental guarantees and surety bonds. See Note 13 to the Financial Statements for additional information.

VISTRA CORP.

Our gross credit exposure (excluding collateral impacts) associated with retail and wholesale trade accounts receivable and net derivative assets (liabilities) arising from commodity contracts and hedging and trading activities totaled $2.648 billion as of June 30, 2026. Including collateral posted to us by counterparties, our net exposure was $2.481 billion, as seen in the following table that presents the distribution of credit exposure by counterparty credit quality as of June 30, 2026. Credit collateral includes cash and letters of credit but excludes other credit enhancements such as guarantees or liens on assets.

Contracts classified as "normal" purchase or sale and non-derivative contractual commitments are not marked-to-market in the financial statements and are excluded from the detail above. Such contractual commitments may contain pricing that is favorable considering current market conditions and therefore represent economic risk if the counterparties do not perform.

An event of default by one or more counterparties could subsequently result in termination-related settlement payments that reduce available liquidity if amounts such as margin deposits are owed to the counterparties or delays in receipts of expected settlements owed to us. Significant (i.e., 10% or greater) concentration of credit exposure exists with one counterparty, which represented an aggregate $236 million, or 36%, of our total net exposure of our wholesale segments as of June 30, 2026. We view exposure to this counterparty to be within an acceptable level of risk tolerance due to the counterparty's credit ratings, market role and deemed creditworthiness and the importance of our business relationship with the counterparty.

Energy-Related Commodity Contracts and Mark-to-Market Activities

The table below summarizes the changes in commodity contract assets and liabilities for the six months ended June 30, 2026 and 2025.

(a)Represents reversals of previously recognized unrealized gains and losses upon settlement/termination (offsets realized gains/(losses) recognized in the settlement period). Excludes changes in fair value in the month the position settled as well as amounts related to positions entered into, and settled, in the same month.

(b)Represents unrealized net gains/(losses) recognized, reflecting the effect of changes in fair value. Excludes changes in fair value in the month the position settled as well as amounts related to positions entered into, and settled, in the same month.

(c)Primarily represents changes in fair value of positions due to receipt or payment of cash not reflected in unrealized gains or losses. Amounts are generally related to premiums related to options purchased or sold as well as certain margin deposits classified as settlement for certain transactions executed on the CME.

VISTRA CORP.

The following maturity table presents the net commodity contract liability arising from recognition of fair values as of June 30, 2026, scheduled by the source of fair value and contractual settlement dates of the underlying positions.

We have engaged in natural gas hedging activities to mitigate the risk of higher or lower wholesale electricity prices that have corresponded to increases or declines in natural gas prices. When natural gas prices are elevated or depressed, we continue to seek opportunities to manage our wholesale power price exposure through hedging activities, including forward wholesale and retail electricity sales.

**Item 4.**CONTROLS AND PROCEDURES

An evaluation was performed under the supervision and with the participation of our management, including the principal executive officer and principal financial officer, of the effectiveness of the design and operation of the disclosure controls and procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e) of the Exchange Act) in effect at June 30, 2026. Based on the evaluation performed, our principal executive officer and principal financial officer concluded that the disclosure controls and procedures were effective as of that date.

There have been no changes in our internal control over financial reporting (as such term is defined in Rules 13a-15(e) and 15d-15(e) of the Exchange Act) during the most recently completed fiscal quarter that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

VISTRA CORP.

PART II. OTHER INFORMATION

**Item 1.**LEGAL PROCEEDINGS

See Note 16 to the Financial Statements for additional information.

As of the date of this Quarterly Report on Form 10-Q, there have been no material changes to the risk factors discussed in Part I, Item 1A. Risk Factors in our 2025 Form 10-K. We could also be affected by additional factors that are not presently known to us or that we currently consider to be immaterial to our operations.

**Item 2.**UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

The following table provides information about our repurchase of common stock during the three months ended June 30, 2026.

In October 2021, the Board authorized a share repurchase program (Share Repurchase Program). Under this program, shares of the Company's common stock may be repurchased in open market transactions, privately negotiated transactions, or other means in accordance with federal securities laws. The timing, number, and value of shares repurchased will be determined at our discretion, considering factors such as capital allocation priorities, stock market price, general market and economic conditions, legal requirements, and compliance with debt agreements and preferred stock certificates of designation. We expect to complete repurchases under the Share Repurchase Program by the end of 2027.

See Note 17 to the Financial Statements for additional information.

**Item 3.**DEFAULTS UPON SENIOR SECURITIES

None.

VISTRA CORP.

Vistra currently owns and operates, or is in the process of reclaiming, 12 surface lignite coal mines in Texas to provide fuel for its electricity generation facilities. Vistra also owns or leases, and is in the process of reclaiming, two waste-to-energy surface facilities in Pennsylvania. These mining operations are regulated by the MSHA under the Federal Mine Safety and Health Act of 1977, as amended (the Mine Act), along with other federal and state regulatory agencies such as the RCT and Office of Surface Mining. The MSHA inspects U.S. mines, including Vistra's mines, on a regular basis, and if it believes a violation of the Mine Act or any health or safety standard or other regulation has occurred, it may issue a citation or order, generally accompanied by a proposed fine or assessment. Such citations and orders can be contested and appealed, which often results in a reduction of the severity and amount of fines and assessments and sometimes results in dismissal. Disclosure of MSHA citations, orders, and proposed assessments are provided in Exhibit 95.1 to this quarterly report on Form 10-Q.

During the three months ended June 30, 2026, none of our officers or directors adopted or terminated any contract, instruction, or written plan for the purchase or sale of Company securities that was intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) (a 10b5-1 Plan) or any "non-Rule 10b5-1 trading arrangement," except as set forth below.

On June 5, 2026, Scott Hudson, Executive Vice President and President of Vistra Retail of the Company, entered into a 10b5-1 Plan. The 10b5-1 Plan provides for the potential sale of up to 66,666 shares of our common stock. Any sales are subject to certain price limitations set forth in the 10b5-1 Plan such that the actual number of shares sold could vary if certain minimum stock prices are not met. The 10b5-1 Plan will become effective on September 8, 2026 and will terminate on February 26, 2027, subject to earlier termination as provided in the 10b5-1 Plan. The 10b5-1 Plan was entered into during an open insider trading window in accordance with our Transactions in Securities Policy.

On May 21, 2026, Kristopher Moldovan, Executive Vice President and Chief Financial Officer of the Company, entered into a 10b5-1 Plan. The 10b5-1 Plan provides for the potential sale of up to 60,000 shares of our common stock. Any sales are subject to certain price limitations set forth in the 10b5-1 Plan such that the actual number of shares sold could vary if certain minimum stock prices are not met. The 10b5-1 Plan will become effective on August 20, 2026 and will terminate on February 15, 2027, subject to earlier termination as provided in the 10b5-1 Plan. The 10b5-1 Plan was entered into during an open insider trading window in accordance with our Transactions in Securities Policy.

(a) Exhibits filed or furnished as part of Part II are:

VISTRA CORP.

VISTRA CORP.