Signal Over Noise

Supermicro and Dell set the tone for AI-server build volume, and both drifted slightly lower this session despite intact fundamentals: Dell has guided full-year AI server revenue to about $60B, up 144%, against a record $51.3B backlog, while Supermicro's fiscal-Q4 orders topped $60B. The softness is about funding and concentration rather than demand, with Supermicro proposing up to $7B of equity to finance component purchases. Networking and interconnect suppliers into the same racks fell harder than the signal pair itself.

NVIDIA and Broadcom set the pricing anchor for the whole accelerator complex, and they split this session: Broadcom held up on custom-ASIC momentum, with Q3 AI revenue guided to $16B and management pointing to a path past $100B by 2027, while NVIDIA eased ahead of its 26 August print. Equipment and test names were the firmest corner of the market, with Lam Research and Teradyne both closing higher against a tape down 0.87%.

Microsoft, Amazon and Alphabet's capex commentary is the single most-watched signal for the power and cooling names building out the data centres behind that spending. All three fell again this session, with Amazon down 2.2% the weakest of the group, as the funding question sharpens: Alphabet's first-half capex rose 111% to $98B and it turned free-cash-flow negative in Q2 for the first time. The power complex followed, though Vertiv broke ranks on the back of Q2 revenue up 24.1% year-over-year.