Cooling and copper: the unglamorous picks-and-shovels bid

Some of the best AI trades have nothing to do with silicon. As rack densities climb, the market keeps paying up for the boring layer — the heat exchangers, the switchgear, the copper — that makes a GPU cluster actually run.

Macro

Quiet macro tape; the rotation was intramarket, out of pure compute and into the physical enablers. That’s a healthy sign the theme is broadening rather than narrowing to a handful of megacaps.

Chips / Compute

SMCI gave back some of last week’s gains on margin worries even as systems demand stayed firm — a reminder that the OEM layer is where AI economics get competed away fastest.

Energy / Power

Electrical equipment stayed bid. ETN held near highs as transformer and switchgear backlogs keep stretching; the grid-gear shortage is one of the most durable bottlenecks in the whole buildout.

Datacenters / Hyperscalers

Thermal is the story inside the walls. VRT and MOD both outperformed as liquid cooling shifts from optional to mandatory at current densities. Copper is the other tell — FCX firmed with the read-through that every megawatt of compute needs a lot more wire than the last cycle did.

Notable moves

• Cooling names led on the density-driven liquid-cooling shift.
• Copper/materials caught a bid as the metals-intensity of AI compute sinks in.
• Systems/OEM lagged on margin concerns despite solid demand.

Informational, not financial advice. Data may be delayed.