Soaring Fed Rate‑Hike Probability Sparks Wall Street Concern

Federal Reserve Leadership Change Sets Stage for Policy Shift

The past two months have been marked by several historic moments on Wall Street, including record highs for the Dow Jones Industrial Average, the S&P 500 and the Nasdaq Composite, as well as the landmark initial public offering of Space Exploration Technologies (SpaceX). Perhaps the most consequential development, however, was the change of command at the U.S. central bank. Jerome Powell’s tenure as Fed chair concluded on May 15, and his successor, Kevin Warsh, assumed the role on May 22, becoming the 17th chair since the Fed’s inception in 1913.

Warsh signaled a reform‑oriented approach at his White House swearing‑in ceremony and followed through on that promise at his first Federal Open Market Committee (FOMC) meeting on June 17. He omitted traditional forward‑looking guidance and issued a notably terse statement, leaving markets to parse the implications of his leadership.

FedWatch Tool Shows Rate‑Hike Odds Climbing Rapidly

The CME Group’s FedWatch Tool, which tracks 30‑day Fed Funds futures to gauge the likelihood of future rate moves, has documented a sharp rise in the probability of one or more rate hikes. As of June 23, the tool indicated a 36 % chance of a hike by the next FOMC meeting in late July, a 70 % chance by mid‑September, a near‑86 % probability by December, and a 90 % chance by March 2027.

Very hawkish dot plot.
nine out of 18 officials have at least one hike this year (and six of those 9 have *multiple hikes*).
Only one person has a cut this year, and one participant (presumably Warsh) didn’t submit an SEP
The statement gets a complete writethru from top to… pic.twitter.com/KRwatpTFOP

— Nick Timiraos (@NickTimiraos) June 17, 2026

The jump in these probabilities followed the release of the Summary of Economic Projections (SEP), whose dot plot shows nine of the 18 voting members—including Warsh’s hawkish stance—forecastting at least one rate increase by the end of 2026. Warsh’s voting record consistently favors higher rates to combat inflation and preserve price stability.

Why Higher Rates Matter for Markets and AI

If the Fed follows through on the projected hikes, the resulting higher borrowing costs could impede the rapid expansion of artificial‑intelligence data centers that have driven recent tech sector growth. Moreover, a rise in rates would put the already elevated stock‑market valuations under heightened scrutiny. The Shiller price‑earnings ratio, for instance, is closing in on the historic peak set during the dot‑com bubble, underscoring the market’s heightened sensitivity to tighter monetary conditions.

Shiller PE Ratio is now just 3.5% away from passing the Dot Com Bubble as the most expensive stock market valuation in history pic.twitter.com/1ceOa3yhfs

— Barchart (@Barchart) June 1, 2026

Investors who were comfortable pricing in multiple rate cuts earlier in the year may find themselves recalibrating expectations as borrowing becomes more expensive. The combination of a hawkish Fed and a market trading at near‑record valuations creates a challenging environment for both growth‑oriented AI companies and the broader equity market.

Fed Chair Kevin Warsh has pledged to reform the central bank. Image source: Official White House Photo by Daniel Torok.

In summary, the convergence of Warsh’s leadership, rising FedWatch odds, and a market trading at historic valuations suggests that Wall Street faces a serious headwind if interest rates are increased as projected. Investors and industry participants will need to closely monitor Fed actions and adjust their strategies to navigate the potential impact on AI infrastructure growth and equity valuations.

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