Utilities, nuclear fuel and grid equipment: the power the AI buildout needs.
The power constraint is one of 22 market stories StoryVector measures. 80 US ETFs carry it, with $66 billion between them; the largest holder, XLU, holds 32.5% of its capital. This week it ranks 13th of 22 for attention, in the WARM band. Over the past year its ETFs returned −1.0%, against +16.8% for broad US ETFs, to October 2, 2026; past performance, not a recommendation.
Its level among all 22 on the fixed 25 to 60 scale. The band is where the level sits this week, not a direction.
Its ETFs ranked among the narratives, lowest to highest. The white notch is this one; the thin tick is where broad US ETFs would sit. Measured and past, not a forecast.
What the story is about, where its attention comes from, what sets it off, and what it shares ETFs with. This week it was measured on 5 of the six channels, and the channel chart is drawn only when all six report.
Every new data center needs power the grid was not built to supply. Who gets paid for the shortage?
Power becomes the scarce input of the AI buildout, and whoever owns generation, fuel and grid equipment gets paid for it.
Much of the power utilities sell goes at rates regulators set. New demand becomes new spending that needs approval, and the return on it stays capped.
What would separate them. Who sets the price. Where power and equipment sell at market prices, the shortage shows up in the price. Where rates are regulated, it shows up as approved spending at a set return. This narrative holds both.
Utilities hold the largest share of the capital here, and power equipment, fuel and clean energy hold the rest. We measure the attention and the capital, not the price of power.
80 ETFs carry this narrative; 68 have it as their main one. Here is how its capital divides among them.
The asset-weighted return of the unlevered ETFs that carry this narrative, against broad US ETFs. Measured and past, not a forecast.
| 1M | 3M | YTD | 1Y | 3Y* | 5Y* | |
|---|---|---|---|---|---|---|
| The power constraintits ETFs, unlevered | −4.5% | −9.0% | +1.4% | −1.0% | +20.1% | +11.6% |
| rank among the narratives | 19th of 22 | 20th of 22 | 16th of 22 | 18th of 21 | 12th of 21 | 7th of 21 |
| The marketbroad US ETFs | +0.8% | +2.6% | +14.6% | +16.8% | +22.9% | +12.9% |
1M, 3M, 1Y, 3Y, 5Y: one month to five years. YTD: year to date. * A year, annualized. Rank is among the narratives with a full record for the period. A dash means the narrative’s ETFs do not cover the whole period.
Total return on the market price, each distribution reinvested on its ex-date. The narrative is the asset-weighted return of the unlevered ETFs that carry it; the market is the asset-weighted return of broad US index ETFs. Past performance is no guarantee of future results.
6 categories, each claimed by a written rule. The bar is each one’s share of the capital. The table names what decides each.
| Category | ETFs | Capital | Share of the ETFs | Share of the capital |
|---|---|---|---|---|
| UtilitiesInterest rates, and the return regulators allow on what utilities build | 11 | $36.0 bn | 16% | 54.8% |
| Grid and power equipmentWhat utilities and data center builders spend on transmission, transformers and generating equipment | 10 | $14.3 bn | 15% | 21.7% |
| Nuclear and uraniumLong-term uranium contracts with reactor operators, and approvals for new and restarted reactors | 10 | $12.0 bn | 15% | 18.3% |
| Clean energyGovernment incentives for wind, solar and hydrogen, and the cost of borrowing to build them | 4 | $2.4 bn | 6% | 3.6% |
| Levered and inverse wrappersThe day-to-day path of Oklo's and Comfort Systems' share prices, which a daily reset compounds | 30 | $0.7 bn | 44% | 1.1% |
| Everything else | 3 | $0.3 bn | 4% | 0.4% |
The widest gap: levered and inverse wrappers, 44% of the ETFs and 1.1% of the capital.
What issuers have listed with this as the main narrative, by wrapper.
What issuers have listed, not what anyone expects. A wrapper can be listed before anyone wants it, so a count of ETFs and a share of capital answer different questions.
80 US ETFs carry it. The largest holders of its capital are XLU (32.5%), GRID (18.1%) and VPU (13.0%).
XLU, with 32.5% of the capital in ETFs carrying the story; the top five hold 77.5%.
Its attention level is 48.2 on a scale of 25 to 60, 13th of 22 this week, in the WARM band. The level averages six channels: search, video, news, forums, investor boards and reference pages.
Asset weighted, its ETFs returned −1.0% over the past year, against +16.8% for broad US ETFs, to October 2, 2026. Past performance only.
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