Alphabet shares rose after word spread that demand for the company's custom AI chips has outrun what manufacturing partner TSMC can produce. Google Cloud's backlog exceeds $514 billion, even as chip spending pushed Alphabet's free cash flow negative for the quarter.
Alphabet shares popped on Wednesday. The catalyst: the company's custom AI chips are in such demand that its manufacturing partner can't keep up. The bottleneck sits not in chip design but in the packaging line that turns Alphabet's designs into finished silicon.
From cloud rental to chip vendor
For years, outside customers could only rent time on Alphabet's Tensor Processing Units through Google Cloud. That changed in Q2 2026, when Alphabet began selling TPU systems directly to select enterprise customers for use in their own data centers.
Most of that direct TPU revenue, however, is expected to land in 2027, not this year, so the current quarter shows only the start of the business. Analysts have raised their price targets on Alphabet anyway, with some estimating TPU sales could bring in tens of billions of dollars by the 2027-2028 window.
Wall Street prices in a new hardware business
The cloud unit's underlying numbers help explain the enthusiasm. Google Cloud grew revenue 82% year over year in Q2 2026, reaching roughly $24.8 billion for the quarter. Its contracted but undelivered revenue backlog exceeds $514 billion.
Building that capacity carries a cost. Alphabet spent $44.9 billion on capital expenditures in Q2 alone and lifted its full-year 2026 capex guidance to between $195 billion and $205 billion. That spending pushed Alphabet's free cash flow negative for the quarter, at roughly minus $5.9 billion.
Why TSMC is the bottleneck
Alphabet designs its TPUs but relies on Taiwan Semiconductor Manufacturing Co. to build them. The specific choke point is packaging: TSMC's CoWoS technology stacks processor dies and high-bandwidth memory into a single unit, and that capacity is sold out through 2026 and into 2027, capping how many TPUs Alphabet can deliver regardless of order volume.
Alphabet is reportedly working to reduce its dependence on a single supplier, with a possible Samsung partnership under discussion for future TPU generations. Qualifying a new production partner takes time, though, and any shift would likely apply to future chip designs rather than today's orders.
The $514 billion backlog suggests the demand is real. The open question is whether Alphabet can convert that backlog into revenue fast enough while its key supplier stays sold out into 2027.
Source: Crypto Briefing
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