⚠ Two Good Years Out of NineHigh threat

Vistra (VST) — threat to the moat

Every bad year has a true explanation, and a decade of explanations is a pattern.

Everything attractive about Vistra — the nuclear licences, the integrated retail book, the position in the two fastest-growing power markets in America — has to be set against one series.

Return on invested capital vs an 8% hurdle (%)1.0%20172.3%20187.0%20194.9%20209.5%202313.8%20245.6%20252021 (-5.4%) and 2022 (-4.2%) omitted; green bars cleared the hurdle
Every bad year has a true explanation - bankruptcy emergence, Winter Storm Uri, hedging marks. A decade of explanations is a pattern.

Return on invested capital since 2017: 1.0%, 2.3%, 7.0%, 4.9%, negative 5.4%, negative 4.2%, 9.5%, 13.8%, 5.6%1. Against an 8% cost of capital that is two years in nine above the hurdle.

The bad years have explanations and the explanations are true. 2017 and 2018 were the years immediately after emerging from the Energy Future Holdings bankruptcy. 2021 was Winter Storm Uri. 2022 and 2025 were dominated by mark-to-market losses on hedges that had not settled — in 2025 the unrealized hedging line swung by nearly two billion dollars2 and reported diluted earnings per share fell from $7.00 to $2.183 while Adjusted EBITDA rose from $5,539 million to $5,838 million4.

But a decade of explanations is a pattern. This is what merchant generation does: high fixed costs, a commodity price set by the marginal unit, weather-dependent demand, and periodic events that cost more than several good years earn. It is the reason the sector trades at a discount to regulated utilities and the reason Vistra is rated narrow rather than wide.

The bull case is that the last two years changed the business — twenty-year contracts on half the nuclear fleet5, a mix shifting toward assets nobody can replicate. That case is plausible and it is unproven, because none of the contracted power has been delivered yet.

The number that settles it is the same one that indicts the past: return on invested capital, measured across the next full cycle rather than in the years the weather cooperates.

The number that tests this threat
Moat Explorer calc
Years above an 8% cost of capital
Two of nine, 2017-2025

Return on invested capital ran 1.0, 2.3, 7.0, 4.9, negative 5.4, negative 4.2, 9.5, 13.8 and 5.6 per cent. The bad years have true explanations - bankruptcy emergence, Winter Storm Uri, hedging marks - and a decade of explanations is a pattern. Watch it across the next full cycle, not in the years the weather cooperates.

Source: Vistra Corp. Form 10-K, fiscal year 2025 ↗
References
  1. Moat Explorer calcReturn on invested capital since 2017: 1.0%, 2.3%, 7.0%, 4.9%, negative 5.4%, negative 4.2%, 9.5%, 13.8%, 5.6%
    Moat Explorer calculation from SEC EDGAR XBRL — return on invested capital as NOPAT divided by average operating invested capital, where NOPAT is OperatingIncomeLoss multiplied by one minus the effective tax rate and invested capital is total assets less current liabilities less cash: 1.0% (2017), 2.3% (2018), 7.0% (2019), 4.9% (2020), -5.4% (2021), -4.2% (2022), 9.5% (2023), 13.8% (2024), 5.6% (2025). The 8% hurdle is an assumed weighted average cost of capital, not a filed figure — FY2017-FY2025 · publ. August 2026 · source ↗
  2. Reported2022 and 2025 were dominated by mark-to-market losses on hedges that had not settled — in 2025 the unrealized hedging line swung by nearly two billion dollars and reported diluted earnings per share fell from $7.00 to $2.18...
    Vistra Corp. Form 10-K, FY2025, Adjusted EBITDA reconciliation — 2025 Adjusted EBITDA by segment: Retail $1,622M, Texas $1,834M, East $2,282M, West $244M, Sunset $(74)M, Corporate and Other $(70)M, total $5,838M, including nuclear fuel amortisation of $133M in Texas and $354M in East; 2024 Adjusted EBITDA: Retail $1,463M, Texas $2,032M, East $2,017M, West $225M, Sunset $(104)M, Corporate and Other $(94)M, total $5,539M; the 2025 change included higher retail margins "driven by strong counts and one-time gains from supply cost management" of $169M, a $(1,963)M change in unrealized net gain (loss) from commodity hedging transactions, $228M of impairment of long-lived assets and $191M of insurance income — FY2025 · publ. February 2026 · source ↗
  3. Reported2022 and 2025 were dominated by mark-to-market losses on hedges that had not settled — in 2025 the unrealized hedging line swung by nearly two billion dollars and reported diluted earnings per share fell from $7.00 to $2.18...
    Vistra Corp. Form 10-K, FY2025, Adjusted EBITDA reconciliation — 2025 Adjusted EBITDA by segment: Retail $1,622M, Texas $1,834M, East $2,282M, West $244M, Sunset $(74)M, Corporate and Other $(70)M, total $5,838M, including nuclear fuel amortisation of $133M in Texas and $354M in East; 2024 Adjusted EBITDA: Retail $1,463M, Texas $2,032M, East $2,017M, West $225M, Sunset $(104)M, Corporate and Other $(94)M, total $5,539M; the 2025 change included higher retail margins "driven by strong counts and one-time gains from supply cost management" of $169M, a $(1,963)M change in unrealized net gain (loss) from commodity hedging transactions, $228M of impairment of long-lived assets and $191M of insurance income — FY2025 · publ. February 2026 · source ↗
  4. Reported2022 and 2025 were dominated by mark-to-market losses on hedges that had not settled — in 2025 the unrealized hedging line swung by nearly two billion dollars and reported diluted earnings per share fell from $7.00 to $2.18...
    Vistra Corp. Form 10-K, FY2025, Adjusted EBITDA reconciliation — 2025 Adjusted EBITDA by segment: Retail $1,622M, Texas $1,834M, East $2,282M, West $244M, Sunset $(74)M, Corporate and Other $(70)M, total $5,838M, including nuclear fuel amortisation of $133M in Texas and $354M in East; 2024 Adjusted EBITDA: Retail $1,463M, Texas $2,032M, East $2,017M, West $225M, Sunset $(104)M, Corporate and Other $(94)M, total $5,539M; the 2025 change included higher retail margins "driven by strong counts and one-time gains from supply cost management" of $169M, a $(1,963)M change in unrealized net gain (loss) from commodity hedging transactions, $228M of impairment of long-lived assets and $191M of insurance income — FY2025 · publ. February 2026 · source ↗
  5. ReportedThe bull case is that the last two years changed the business — twenty-year contracts on half the nuclear fleet, a mix shifting toward assets nobody can replicate
    Vistra Corp. Form 10-K, FY2025, Item 1 Business — "The Company brings its products and services to market in 18 states and the District of Columbia, including all major competitive wholesale power markets in the U.S. We serve approximately 5 million residential, commercial, and industrial retail customers with electricity and natural gas. Our generation fleet totals approximately 44,000 megawatts of generation capacity powered by a diverse portfolio, including natural gas, nuclear, coal, solar, and battery energy storage facilities"; the integrated model "enables us to structure products and contracts in a way that offers significant value compared to stand-alone retail electric providers"; five reportable segments — Retail, Texas, East, West and Sunset, plus Asset Closure; retail investors served through TXU Energy in ERCOT, Homefield Energy in MISO and Public Power in PJM, ISO-NE, NYISO and MISO — FY2025 · publ. February 2026 · source ↗
Sources
Generated September 23, 2026