What Warsh's Jackson Hole Speech Reveals About the Fed's Problem

The market reaction to Kevin Warsh's first keynote address as Federal Reserve chairman was not dramatic but telling. Stock indices closed little changed. The 10-year Treasury yield climbed towards 4.7% before pulling back. Short-term yields jumped 12 basis points to around 4.35%. The dollar firmed to 99.5. None of these moves screamed panic. Together they told a quieter story: investors are beginning to believe the Fed might raise interest rates again, and they have no idea when.

That last part is the point. At the Jackson Hole symposium on August 28th, Mr Warsh — marking his 100th day in office — did two things at once. He signalled that the central bank is prepared to hike rates if inflation does not improve. Then he dismantled the machinery investors have relied on for a decade to guess how the Fed will act. Forward guidance, that practice of telling markets roughly what to expect next, has "overstayed its welcome," he said. He would provide "discipline, not a decision."

The trouble is that discipline without direction leaves investors in a peculiarly uncomfortable position. They are being told to watch the economic data themselves, while having no road map for how the Fed will interpret that data. It is the central bank equivalent of being told the rules apply, but not being told what the rules are.

The reason the stakes matter is not Mr Warsh's communication preferences. It is inflation. The personal consumption expenditures price index — the Fed's preferred measure — stands at 3.7% annually, little changed from June and well above the 2% target. Excluding food and energy, core PCE rose 3.3% over the past year. The six-month annualised pace of overall PCE inflation is 4.1%. Fifty-four per cent of the individual components in the PCE basket posted price increases above 3% over the past 12 months, down from a post-pandemic high of 77% but far from the 32% that characterised the pre-pandemic era. Mr Warsh did not mince words: "The responsibility for 65 months of sustained, elevated inflation sits squarely with the central bank."

Sixty-five months. More than five years of inflation running above target. And yet the federal-funds rate has been held steady at between 3.5% and 3.75% since December 2025, unchanged for seven consecutive meetings. Three Fed officials dissented in July, favouring an immediate rate hike. Several regional Fed presidents, including Jeffrey Schmid of the Kansas City Fed and Beth Hammack of the Cleveland Fed, have argued that current policy is not restrictive enough. The Fed's own minutes acknowledged a committee divided by uncertainty.

The market has responded by pricing in a roughly 60% chance of a September rate hike, up from around 30% before Mr Warsh's speech. That probability is itself a measure of the tension: investors are not convinced inflation will resolve itself, but they are equally unsure whether the Fed will act.

Here is where the structural picture becomes more interesting than a simple rate-hike bet. The bond market has been doing much of the Fed's tightening for months, just not at the short end. The 30-year Treasury yield surged to nearly 5.23% after the July FOMC meeting — a 19-year high. The 10-year yield touched 4.7% this week. But the 2-year yield, which tracks short-term Fed policy most closely, has only recently begun to move. The result is a yield curve that is flattening: the gap between the 2-year and 30-year narrowed to roughly 87 basis points, near its lowest level in a month.

This pattern carries two separate stories. Short-end rises reflect the expectation that the Fed may raise rates. Long-end levels are not primarily about Fed policy at all. They are driven by America's fiscal arithmetic: a national debt exceeding $40 trillion, a deficit approaching $1.8 trillion per year, and massive corporate borrowing as technology companies fund artificial-intelligence infrastructure. Business capital expenditure is rising at a 9% annual rate, the fastest pace since 2021, with more than half of that growth in AI investment. Treasury Secretary Scott Bessent has announced a debt buyback programme to ease long-end pressure, but markets have remained sceptical. The long bond market, as one analyst put it, does not "buy into his inflation-fighting story."

That disconnect between what the Fed says and what long-term rates price in is the real investment question. A rate hike in September would raise borrowing costs for variable-rate loans, credit cards, and adjustable mortgages. It would add pressure to equity valuations that are already stretched: the S&P 500 trades at a forward price-to-earnings ratio of 20.2, down from around 22 at the end of 2025 but still above its historical average. A stronger dollar, which has followed the yield surge, hurts multinational earnings by making foreign revenues worth fewer dollars at home.

But the opposite risk deserves equal weight. If inflation proves stickier than expected — from Middle East energy disruptions, tariffs, or simply the persistence of services prices — and the Fed is perceived as having waited too long, markets could punish it more severely. Inflation expectations, currently anchored at around 2% for the longer term, are the central bank's real capital. If they drift higher, the Fed would face the choice of hiking aggressively or losing credibility. The July FOMC minutes revealed that this fear is already present within the committee.

Mr Warsh's rejection of forward guidance changes the mechanics of that risk. Under previous chairs, investors could read between the lines of carefully worded statements to anticipate the Fed's next move. That system produced its own distortions — markets front-running policy, policy reacting to market positioning — which Mr Warsh described as a hall of mirrors. His alternative is to let the data speak and the Fed respond, without signalling in advance. The merit is genuine flexibility. The cost is that investors now have to guess not just what the data will show but how the Fed will interpret it.

The September 15th-16th FOMC meeting will be the first real test. The July PCE print was stable at 3.7%, and incoming August data has not yet broken through. Energy prices remain sensitive to the Strait of Hormuz, where shipping disruptions from the Iran conflict have not fully resolved. Oil prices hovered around $80 a barrel, but J.P. Morgan strategists warn that persistent supply disruption could push them towards $120 — a level that would complicate the Fed's task considerably.

For investors, the practical implication is straightforward. The macroeconomic backdrop is no longer one of waiting for rate cuts. It is one of navigating potential rate increases in an environment where the Fed has explicitly said it will not guide you through them. The S&P 500 is up roughly 12% year-to-date and near record highs, supported by earnings growth of 33.5% over the past year — driven heavily by artificial-intelligence-related investment. But those same companies are leveraging up their balance sheets to fund the build-out. Higher rates raise the cost of that leverage.

The investment question is not whether Mr Warsh will follow through on his rhetoric. It is whether the economy can absorb tighter monetary conditions while inflation, supply chains, and geopolitical risks remain unresolved. The Fed has 65 months of above-target inflation to overcome and a communication strategy that offers no guarantees. Markets will have to price the uncertainty themselves.