⚠ Contracting Away the UpsideModerate threat

Vistra (VST) — threat to the moat

If the scarcity thesis is right, Amazon and Meta made the better trade on those megawatts.

Every argument for owning Vistra rests on American power becoming scarcer and more valuable. The company's response to that same expectation has been to sell twenty years of its best output at fixed prices.

Nuclear output: sold forward or still exposed (MW)3,376 MWContracted, twenty years3,072 MWMerchantManagement continues to pursue additional long-term arrangements, so the left bar grows
The bull case is that power prices rise for a decade. The strategy is to be progressively insulated from that.

Roughly 3,376 megawatts of existing nuclear are now committed under twenty-year agreements to Amazon and Meta12, and management continues to pursue additional long-term arrangements3. If the scarcity thesis is right, the buyers made the better trade on those megawatts.

The defence is a good one and worth stating fairly: a merchant generator that has cleared its cost of capital in two of nine years4 should not be holding out for a windfall. Contracted cash flows lower the cost of capital, support financing and make the earnings legible, and the return from re-rating a business from merchant to contracted can exceed the price upside being given up.

But it does put an investor in an odd position. The bull case is that power prices rise for a decade; the company's strategy is to be progressively insulated from that. The more contracts Vistra signs, the more the equity resembles a long-dated bond with a hyperscaler counterparty and less the levered call option on power prices that the last two years' share price behaviour implied.

There is a version of this that goes badly in both directions: contracted prices that turn out to be low, on a fleet where the uncontracted remainder is the volatile part.

The number that resolves it is not disclosed today. It will become visible as deliveries begin in late 2027 — realised margin on contracted volumes against the prevailing market price for the same power.

References
  1. Moat Explorer calcRoughly 3,376 megawatts of existing nuclear are now committed under twenty-year agreements to Amazon and Meta, and management continues to pursue additional long-term arrangements
    Vistra and Meta announce agreements to support nuclear plants in PJM, 9 January 2026 — twenty-year power purchase agreements under which Vistra will supply Meta with a total of 2,609 MW of carbon-free power and capacity from its PJM nuclear plants: 1,268 MW of energy and capacity from Perry and 908 MW from Davis-Besse, plus 213 MW of uprate energy and capacity from Perry, 80 MW from Davis-Besse and 140 MW from Beaver Valley; delivery commences on a portion of the operating energy and capacity in late 2026 with full delivery by year end 2027, and uprate delivery commences in 2031 with full delivery by year end 2034; Vistra agreed to be the preferred power partner for Helix Digital Infrastructure, a newly formed company designed to develop infrastructure for AI-oriented hyperscalers. Meta contracted up to 6.6 GW of nuclear power across agreements with Vistra, Oklo and TerraPower announced the same day — January 2026 · publ. January 2026 · source ↗
  2. Moat Explorer calcRoughly 3,376 megawatts of existing nuclear are now committed under twenty-year agreements to Amazon and Meta, and management continues to pursue additional long-term arrangements
    Vistra and Meta announce agreements to support nuclear plants in PJM, 9 January 2026 — twenty-year power purchase agreements under which Vistra will supply Meta with a total of 2,609 MW of carbon-free power and capacity from its PJM nuclear plants: 1,268 MW of energy and capacity from Perry and 908 MW from Davis-Besse, plus 213 MW of uprate energy and capacity from Perry, 80 MW from Davis-Besse and 140 MW from Beaver Valley; delivery commences on a portion of the operating energy and capacity in late 2026 with full delivery by year end 2027, and uprate delivery commences in 2031 with full delivery by year end 2034; Vistra agreed to be the preferred power partner for Helix Digital Infrastructure, a newly formed company designed to develop infrastructure for AI-oriented hyperscalers. Meta contracted up to 6.6 GW of nuclear power across agreements with Vistra, Oklo and TerraPower announced the same day — January 2026 · publ. January 2026 · source ↗
  3. Moat Explorer calcRoughly 3,376 megawatts of existing nuclear are now committed under twenty-year agreements to Amazon and Meta, and management continues to pursue additional long-term arrangements
    Vistra and Meta announce agreements to support nuclear plants in PJM, 9 January 2026 — twenty-year power purchase agreements under which Vistra will supply Meta with a total of 2,609 MW of carbon-free power and capacity from its PJM nuclear plants: 1,268 MW of energy and capacity from Perry and 908 MW from Davis-Besse, plus 213 MW of uprate energy and capacity from Perry, 80 MW from Davis-Besse and 140 MW from Beaver Valley; delivery commences on a portion of the operating energy and capacity in late 2026 with full delivery by year end 2027, and uprate delivery commences in 2031 with full delivery by year end 2034; Vistra agreed to be the preferred power partner for Helix Digital Infrastructure, a newly formed company designed to develop infrastructure for AI-oriented hyperscalers. Meta contracted up to 6.6 GW of nuclear power across agreements with Vistra, Oklo and TerraPower announced the same day — January 2026 · publ. January 2026 · source ↗
  4. Moat Explorer calcThe defence is a good one and worth stating fairly: a merchant generator that has cleared its cost of capital in two of nine years should not be holding out for a windfall
    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 ↗
Sources
Generated September 23, 2026