Fed's Mary Daly has blunt message for AI stock investors
Mary Daly just issued a stark warning to AI stock investors in a recent sit-down interview with Bloomberg.
Daly argues that the broader story remains promising, but clearly the proof is still incomplete.
The San Francisco Fed president laid out the case that businesses are clearly spending, experimenting, and preparing their workers for the AI boom.
However, for those expecting the sweeping productivity gains that Nvidia CEO Jensen Huang has promised, those benefits have yet to materialize.
That’s why Daly points to 2027 being a litmus test.
Despite being mostly constructive, the Fed official is still separating possibility from evidence.
Markets are still rewarding the biggest in the AI space, especially those that are funding the buildout.
For context, Micron Technology, once considered a classic boom-and-bust memory stock, recently topped a $1 trillion valuation after soaring 780% in just nine months.
At the same time, Micron stock is now trading at more than 45 times non-GAAP earnings, 161% above its 5-year average, according to Seeking Alpha.
Similarly, Nvidia stock is trading at over 37 times earnings, leaving little room for disappointment.
Essentially, it boils down to a simple question: whether AI can move from flashy experiments to genuine economic impact.
Fed President Mary Daly says next year could determine whether AI meets expectationsBloomberg / Getty Images
The AI giants now steer the market
The Magnificent 7, which includes Apple, Amazon, Alphabet, Meta, Microsoft, Nvidia, and Tesla, makes up a whopping up 34.8% of the S&P 500 in May 2026, up from 12.5% in 2016, according to The Motley Fool.
In 2025, the group accounted for over 40% of the S&P 500’s return, underscoring how much the index's performance depends on a handful of AI-linked names, according to Fidelity.
According to a Reuters report, the AI rally remains as powerful as ever, with Nvidia and Microsoft alone adding $591 billion in market value in May on the back of robust AI-chip demand and upbeat earnings.
Big Tech’s tremendous AI spending matched its market weight, with Amazon, Microsoft, Meta, and Google-parent Alphabet planning capital expenditures of up to $725 billion in 2026, according to Business Insider.
Daly says AI investors face a real-world test next year
Daly’s core point is that the AI boom still has a long way to go to earn the market’s trust.
MoreEconomy:
She talks about how businesses are spending and experimenting aggressively, but broad productivity gains haven't yet shown up across the economy.
