Why the most important company enabling AI isn’t Nvidia, according to this fund manager
A Janus Henderson manager says TSMC, not Nvidia, is the key AI enabler, citing physical and power limits as a reason the market may avoid a dot-com-style blowoff.
Intelligence analysis by GPT-5.4 Mini
The piece frames AI euphoria against a backdrop of record stock closes and renewed bubble talk. Jonathan Cofsky of Janus Henderson argues the real bottleneck is physical infrastructure and power, and says Taiwan Semiconductor is the most important AI enabler right now.
A money manager says the company making the special chips for AI is more important than the famous chip designer. He thinks the boom may stay calmer because electricity and factory space act like traffic lights on a busy road.
Analysis
Market backdrop
MarketWatch sets the story against a strong tape: the S&P 500 notched its 23rd record close on Monday, well ahead of the pace seen a year ago. That strength keeps bubble chatter alive, especially with comparisons to the dot-com era never far from investors' minds.
Cofsky's view
Jonathan Cofsky, co-portfolio manager at Janus Henderson’s Global Tech and Innovation Fund, draws a distinction between the current AI cycle and the late-1990s technology boom. In the article's framing, the key difference is not valuation alone but hard limits in the real world: power and physical capacity. That makes the AI story less like an abstract internet surge and more like an industrial buildout that depends on factories, electricity, and supply-chain execution.
Within that setup, Cofsky says Taiwan Semiconductor Manufacturing Co. is the most important company for AI right now. The piece points readers to TSMC as the critical enabler behind the hardware chain rather than Nvidia alone.
The visible text also signals that the article includes discussion of software picks and one out-of-favor stock, but the provided excerpt does not name them. What is clear from the supplied article text is the central thesis: AI leadership may be better understood through the companies that make the infrastructure possible, not just the best-known AI brand names.
Key points
- The S&P 500 logged its 23rd record close on Monday.
- MarketWatch says that pace is helping keep bubble talk alive.
- Jonathan Cofsky says physical and power constraints make this cycle different from dot-com.
- He views TSMC as the most important company enabling AI right now.
- The provided excerpt does not name the software picks or the out-of-favor stock.
If Cofsky is right, investors may keep rewarding the companies that build the AI backbone, especially suppliers like TSMC. The physical and power limits he points to could also help the market grow more steadily instead of racing into a bubble.
If investors ignore those limits, bubble worries could keep building even as stocks hit new highs. A shortage of power or manufacturing capacity could slow the AI rollout and leave market expectations ahead of reality.
