CASCI Data Points to Massive AI Capacity Ramp
We've never seen anything like this. Ever. The Culpium AI Supply Chain Index (CASCI) climbed 1.7pts in May to 139.5 points, driven by manufacturing-equipment installs.
CASCI Composite May 2026 Highlights:
139.5 points, record high.
+1.7 pts, driven by capacity expansion
The CASCI cycle remains Strong, indicating continued upward momentum ahead
Upstream:
We saw continued growth in semiconductor and component makers in May. GPU and ASIC companies such as Nvidia and AMD are driving a continued boom with their release of new products for the next round of compute-platform upgrades.
Mid-stream:
Makers of electronics modules as well as mechanical parts are seeing a pause in growth. While revenue continues to rise, the rate of expansion is flat. Many of the parts going into new AI servers require reconfiguration. This includes new approaches to cooling and upgraded power-delivery.
This tepid growth is now quite prolonged, which indicates the pause is not a temporary blip. Culpium advises watching this tier closely.
Downstream:
There was significant weakness in server and system assembly in May. However, this is so far a one-off and could indicate a temporary reset after solid data over the past year. Culpium believes it’s too early to be concerned because new end-products are in the pipeline. These new systems include those based on Nvidia’s Vera Rubin platform as well as white-box installs by hyper scalers built around their own custom ASICs.
Capacity:
Companies that build factories and supply equipment are experiencing red-hot growth throughout the manufacturing value chain. Culpium has never seen anything like this.
Equipment makers are churning out new tools and machinery to meet escalating demand, largely from semiconductor fabrication, packaging, and testing.
Revenue in this sector is a reflection of delivery and contract-completion milestones. While the construction segment of the Capacity tier is solid, this strength is largely driven by equipment.
CASCI is a weighted index tracking revenue of Taiwanese companies in the AI compute supply chain. Taiwanese companies make up the majority of upstream, mid-stream, and downstream of AI server manufacturing.
Notes for Editors & Analysts:
CASCI is published monthly by Culpium as a service to readers.
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