On September 8, 2026, GE Aerospace agreed to acquire Consolidated Precision Products (CPP) for $11.75 billion. At close, the purchase moves about one-sixth of the merchant aerospace and defense precision castings market under engine-maker ownership. Merchant suppliers in that market earned about $8.0 billion in 2025. Close is expected in the second half of 2027, subject to regulatory approvals.

On the report’s reading, the price GE Aerospace agreed buys priority on scarce capacity more than earnings. My analysis argues that value in this market is now set by control of yield-bounded single-crystal and directionally solidified casting capacity, not by aircraft build rates. The squeeze is set by airfoils, spares and gas turbines, not by airframes: Airbus described its engine supply as normalized in July 2026.

Engine makers are taking control of casting capacity along a spectrum, not in one step. Pratt & Whitney is expanding its Asheville turbine-airfoil plant. Rolls-Royce plans to double output at its Rotherham blade-casting facility by 2030. Safran’s Rennes turbine-blade foundry opens in 2027. And OEM capital is flowing into Doncasters, an independent, which cites customer contribution to capital investment in its strategic partnerships.

The engine makers are not the only bidders. Gas turbines for data-centre power bid for the same foundries. Industrial gas turbine work was a larger share of Doncasters’ 2025 revenue than aerospace was, and gas turbines are part of the market mix of Howmet Aerospace’s Engine Products segment.

If value is set by control of capacity, as my analysis argues, the questions worth asking change for a castings customer, an investor in a supplier or a competing foundry. Who owns the casting capacity? Who funds it? Who else is bidding for its output? The downside is part of the same picture. The report runs a contraction stress test on the merchant pool, sized on the 2020 drawdown in the revenues of Howmet’s Engine Products and Precision Castparts.

My full analysis, the Aerospace & Defense Precision Castings Market report, sizes the market by application, by end market and by ownership mode, where it sizes independent and OEM-owned merchant revenue and shows OEM-funded and captive capacity as indicators. It carries gas-turbine hot-section castings as a separate line. It profiles merchant casters, among them Precision Castparts, Howmet Aerospace, CPP and Doncasters, and the captive foundries of Pratt & Whitney, Rolls-Royce and Safran, and sets out three forecast scenarios. It is available on the report’s page.