> David Weigand, chief financial officer at Supermicro, said on the call that rack-scale and AI system sales accounted for 53 percent of revenues, which is $1.12 billion. Sales to large datacenter customers and OEM appliances to other vendors (of which we also think Nvidia is one) accounted for $1.17 billion, up 26.3 percent.

This explains pretty much the whole thing. People are building new racks at an unprecedented pace, it is like a gold rush, and anyone who is selling tools (whether it be TSMC's raw wafers, NVIDIA's chips, or even a company that only builds HVACs for datacenters) is probably going to see their peak.