·18 min read

The Cambrian Thesis

The AI supply chain, fifteen layers deep.

Who amongst us has not looked at the consistency of the transformer model loss curves and thought, "yeah okay, but how do I make a trade on this?"

I've spent a bit of time trying to get allocation on secondary lab stock, with some success. Private markets, however, don't allow you to make leveraged bets.

So the question becomes - how do you best trade on short AGI timelines on the public markets? Finding a company that's part of the AI supply chain is necessary but not sufficient.

After some research, I've found these to be the most important factors:

1) AI beta. The single most important factor. Basically: what % of the company's top line depends on AI.

The reason Nvidia ripped much more than TSMC is that TSMC had a broad and diversified portfolio of customers, of which only a smaller minority was AI related. So even one doubling of AI demand isn't enough to make AI a substantial part of their revenue. Nvidia on the other hand, was heavily concentrated in AI, and one doubling in demand was basically enough for Nvidia itself to double.

To figure out where I should invest my savings to be consistent with a strong belief in short AGI timelines, I've worked with Claude to map out the AI supply chain; singling out specifically the companies with high AI beta:

AI Revenue %<15%15-30%30-50%50-75%75%+
Color by
Box width = market share within layer; color = AI revenue mix. Each card shows market share, AI revenue % (rev), and AI operating income % (op). Click a company or layer for detail.

2) Priced-in status. As a former believer in the efficient market hypothesis, I've tried to figure out the gap between what demand the market currently forecasts, and what you'd actually expect on short AGI timelines. One way to quantify that is: what's the delta between GW of buildout capacity currently planned, and what will actually be required if we get a "drop-in remote worker" within a year?

Each company's current orders or stated capacity expressed as % of 15GW of additional AI-infrastructure demand expected in the next 12 months. Below 60% suggests room for upside; above 100% is effectively saturated.
<60% (upside)60-100% (moderate)100%+ (saturated)Vertical line = 100% coverage
Each company's current orders or stated capacity expressed as % of 15GW of additional AI-infrastructure demand expected in the next 12 months. Sub-60% suggests upside; above 100% is saturated. Cleveland-Cliffs and GE Vernova read off-scale because they sell into many other end-markets too.

3) Idiosyncratic risk. In any given layer of the supply chain, there will be several companies supplying something. You want to avoid the failure mode of betting on the right technology, but on the wrong company. For instance, in HBM memory used in AI chips, there are only three players (SK Hynix, Micron, Samsung) that could compete, and so the substitution risk is lower. Compare that to the neocloud market, where there are many competitors, and it's hard for a non-expert to decipher which ones to bet on, even if you're certain there's a compute crunch coming and model companies ready to be paying meaningful premiums for compute.

CompanyCoverage / Sub. risk
Coverage = current orders / stated capacity expressed as a share of 15GW of additional AI-infrastructure demand expected in the next 12 months. Bottom-left = low coverage (room to surprise) + low substitution risk (can't be displaced). Dashed line marks 100% coverage.

Data assembled from SEC 10-K/Q filings, earnings calls, and press releases through Q1 2026. Where exact disclosure was not available, values are marked with "~" or "est". The research was made for my personal use, and then shared at the encouragement of a friend. This is certainly not investment advice for others.