Federal Reserve Chair Kevin Warsh stated Friday that there may still be "work to do" regarding inflation, a comment made during his speech at the Federal Reserve's annual Jackson Hole retreat in Wyoming. While acknowledging that medium-term inflation expectations appear stable, Warsh noted that recent inflation readings from the summer do not indicate a substantial improvement in underlying trends.

"We must be confident that underlying inflation is moving to our objective, clearly and at sufficient speed," Warsh said. "Otherwise, we have work to do. That’s our job … our mandate … and our charge to keep."

Warsh, who has previously expressed skepticism about the necessity of "forward guidance," avoided making explicit pronouncements on the future path of interest rates. This approach has led investors to scrutinize his remarks for any clues about the Federal Open Market Committee's (FOMC) intentions. Last month, Warsh had indicated his Jackson Hole address would focus on framing the key challenges confronting the central bank, including persistent inflation, rising bond yields, and internal Fed dissent.

In July, inflation stood at 3.4%, a decrease from over 4% in May but still significantly above the Fed's 2% target. Factors such as elevated oil prices, partly attributed to geopolitical tensions, have contributed to sustained high gasoline prices, impacting consumer spending.

During the Fed's July meeting, Warsh had emphasized the committee's priority on price stability, suggesting a disposition toward increasing interest rates. However, he declined to specify a timeline or method for addressing inflation or a potential rate hike, leaving uncertainty surrounding the Fed's September meeting.

Prior to Warsh's speech, futures markets indicated a 35% probability of a quarter-point rate increase at the September 16 FOMC meeting, according to CME FedWatch. Cleveland Fed President Beth Hammack, one of three officials who favored a rate hike in the previous month, reiterated on Thursday the need for prompt action to combat inflation, stating, "I believe it’s time to act. I think we’ve seen inflation above target for too long."

In the weeks following the last Fed meeting, Treasury yields have risen, which some analysts interpret as a signal of diminished investor confidence in the Fed's commitment to tackling inflation. The Treasury Department's recent announcement to potentially double debt buybacks to approximately $4 billion caused a brief dip in bond yields, though they later rebounded.