Traders are increasingly questioning Federal Reserve Chair Kevin Warsh's resolve in combating inflation, despite his strong statements. The Fed recently held its benchmark interest rate steady in the 3.50%-3.75% range, a decision that has fueled skepticism among investors. This doubt has led to a significant increase in long-term bond yields, with the yield on the inflation-sensitive 30-year US bonds rising to 19-year highs, and 30-year US bonds reaching 5.2039%, hitting their highest since June 2007 at 5.2273% in New York trading.

Warsh, who took over as head of the Fed in May, has stated he has "no tolerance" for inflation, which has exceeded the central bank's 2% target for over five years. However, his decision to not raise rates, despite this rhetoric, is perceived by some as inconsistent. Three members of the Federal Open Market Committee (FOMC) dissented from the decision, preferring a quarter-percentage-point hike, highlighting a growing division within the Fed regarding the next steps to control inflation. This marks the biggest early policy split for a Fed leader since Arthur Burns in 1970.

Analysts like Ed Yardeni suggest that "talking hawkish but not acting so reduces the Fed's credibility." Kerry Craig, global market strategist at J.P. Morgan Asset Management, also noted that "the Fed is likely to face ongoing questions around its credibility." Some investors believe that without concrete actions, Warsh's hawkish tone alone will not ensure price stability, and the market may have to learn the hard way that no forward guidance means the FOMC might not deliver on expected policy outcomes. Fed funds futures now imply around a 60% chance the Fed will lift rates at its next meeting in September, with 33 basis points of tightening priced in by year-end.

The bond market's reaction suggests that it is doing some of the Fed's work, as rising yields reflect market expectations of higher interest rates. Warsh acknowledged the increase in bond yields, welcoming the development, but stressed that it didn't obligate the Fed to validate those expectations with policy action. This posture, combined with the lack of clear guidance, has left bond markets uncertain about the Fed's future moves and intensified questions about the central bank's credibility and independence.