Hock Tan said capital may be the biggest constraint on AI and likened many investors to gamblers. He also said demand for computing exceeds supply and could stay that way through 2029. Broadcom fell about 2% while optical-component makers dropped as much as 10%.
Broadcom's chief executive gave investors a warning and a reassurance in the same appearance on Monday. The makers of optical networking gear for the AI buildout fell far more than Broadcom did.
Speaking at the DBS Asia Future Forward Conference in Singapore, Hock Tan said: "[What] I think might be the biggest constraint is capital." He also likened many AI investors to casino gamblers, a comparison that drew most of the attention.
In the same appearance he said: "There is more demand for compute infrastructure than we can supply." He said the imbalance could last through 2029 and possibly into 2030.
How The Stocks Moved
Broadcom itself slipped 1.88% to $354.73 on Monday. Makers of optical and networking components fell much further. Ciena dropped 9.95% to $405.01, Lumentum 9.78% to $995.41, Coherent 7.87% to $288.02 and Corning 6.02% to $147.25. Marvell Technology lost about 3.4%. The PHLX Semiconductor Index fell 2.67%.
Ciena's decline was more than five times Broadcom's.
Meta Platforms, by contrast, closed up 3.4% at $742.96. Its gain began at the opening bell, hours before it released new AI models that afternoon. On the day, investors favored a company that spends on AI over the companies that sell it network hardware.
The Other Explanations
Analysts offered several reasons for the optical selloff, and Mr. Tan's remarks were only one. Ryan Sette of Reflexivity said a joint demonstration by Lumentum, Astera Labs and Corning at an industry event "became an exit point rather than a catalyst." Jordan O'Regan of Mizuho said the optical group could be giving back gains from Friday. Investor Steve Eisman has warned that more than 65% of the S&P 500 is now tied to the AI trade.
Optical names had rallied hard. Lumentum's chief executive said last week that the company was sold out into early 2029, a timeline close to the one Mr. Tan gave for demand.
Reading The Remarks Together
Taken together, the two statements describe a market in which customers want more than suppliers can build, but where the money to pay for it is getting more expensive. That is a constraint on the pace of spending, not necessarily on its size. For component makers with orders booked years ahead, the risk is delays and renegotiation rather than cancellations, though none have been reported.
Market Implications
One reading is that the selloff overreacted to a colorful comparison. The same executive confirmed demand exceeds supply for years, Broadcom's own shares fell less than 2% and no supplier has reported any change in orders.
A second reading is that investors heard the important part. When a leading AI chip supplier says capital is the binding constraint, the companies furthest down the supply chain, and most dependent on customers' spending plans, are the first to be repriced.
What To Watch
Orders and guidance from ASML on Wednesday and Taiwan Semiconductor on Thursday, and any change in spending plans from large cloud companies when they report later this month, will test whether capital is slowing the buildout.