Strong economic indicators and a wave of hawkish comments from U.S. central bank leaders have significantly boosted market expectations for another interest rate increase next month. The probability of a Federal Reserve rate hike at the October policy meeting has now surged to 73%, according to the latest CME FedWatch tool.

Federal Reserve Board Governor Michael Barr publicly expressed support for an additional rate increase in October, citing the need for further policy adjustments to ensure inflation returns to target levels. His remarks coincided with fresh PMI data showing renewed inflationary pressures and solid employment gains, which together intensified the market's conviction in tighter monetary policy.

Several regional Fed presidents also voiced the necessity of continuing to tighten policy. St. Louis Fed President Alberto Musalem and Boston Fed President Susan Collins both indicated that more rate increases may be required. Additionally, European Central Bank officials simultaneously warned that a second wave of energy price increases could keep inflation elevated for an extended period, creating a convergence of tightening expectations across major Western central banks.

This synchronization of policy signals prompted a sharp rise in U.S. Treasury yields, with the 2-year yield climbing more than 13 basis points to reach 4.9%, and triggered notable volatility in global financial markets.

U.S. PMI data shows all-around strength amid rising inflation and employment

The preliminary manufacturing and services PMI figures released by S&P Global delivered impressive readings, with both metrics hitting multi-year highs. The services purchasing managers index registered 58.7, the highest level in 59 months, while the manufacturing PMI climbed to 56.7, marking a 53-month peak. The composite PMI reached 58.4, the strongest reading in 62 months, with any figure above 50 indicating economic expansion.

Beneath these strong numbers, inflationary pressures are re-emerging. Chris Williamson, chief business economist at S&P Global Market Intelligence, noted that input costs for businesses posted their fastest increase in four years during September. He attributed this to rising international oil prices pushing up fuel and transportation expenses, which is expected to sustain upward pressure on selling prices and overall inflation in the coming months.

Employment conditions also showed remarkable strength, as companies expanded their workforces to manage growing order backlogs. The jobs growth recorded in this PMI survey was the strongest since June 2022. Service sector hiring expanded at the fastest pace since June 2002, while manufacturing employment growth also rebounded to levels not seen since February 2021.

Fed officials collectively signal hawkish stance, October hike expectations soar

Federal Reserve Board Governor Michael Barr, in prepared remarks for a housing conference in Chicago, stated that policymakers still have more work to do even following last week's 25-basis-point rate increase. He said: "In my baseline scenario, further policy adjustments are likely needed to ensure inflation falls back to target in a timely manner. We aim to support sustainable economic growth to achieve full employment, and price stability is a core precondition for reaching that goal."

Barr voted in favor of the previous FOMC decision, which raised the benchmark rate by 25 basis points, placing the policy rate range at 3.75% to 4%. Among the 18 officials who submitted economic projections, only two did not support additional rate increases this year.

St. Louis Fed President Alberto Musalem and Boston Fed President Susan Collins also expressed similar views. On Tuesday, September 22, Collins wrote that the likelihood of inflation staying above the 2% target has increased. She added that with improving labor market fundamentals, monetary policy can prioritize bringing prices back to stability, and maintaining a restrictive federal funds rate can help return inflation to its target sustainably.

Driven by these official statements and the PMI data, the CME FedWatch tool now shows a 73% probability of a rate hike at the October 27-28 FOMC meeting.

ECB also issues warnings as second energy shock pushes inflation higher

Across the Atlantic, European Central Bank Executive Board member Philip Lane also warned on Tuesday that a second wave of energy price increases could keep inflation elevated for a longer period. He highlighted upward pressures on food, energy including electricity, and a wide range of goods. If the energy shock this autumn proves larger and more persistent, it could weigh on the euro area economy.

The ECB's baseline forecast, which references futures prices for oil and gas, anticipates some easing in energy prices later this year. While the situation may not fully return to previous levels, it would improve compared to current conditions. Lane stressed, however, that this baseline projection carries extremely high uncertainty.

The consecutive hawkish remarks from major central bank officials on both sides of the Atlantic have reinforced global expectations for tighter monetary policy, affecting currency, bond, and commodity markets worldwide.

Key takeaways for investors

The combination of robust U.S. PMI data, surging input costs, and coordinated hawkish signals from multiple Fed officials has substantially amplified market pricing for an October rate hike. The U.S. economy presents a mix of economic expansion, strong employment, and rebounding inflation, compelling the Fed to continue tightening policy and driving Treasury yields higher.

The ECB is equally vigilant about a second inflationary shock from energy prices, suggesting that the global tightening cycle among major central banks is far from over. Going forward, investors should closely monitor U.S. CPI readings, employment data, and policy commentary from Fed and ECB officials. Any shifts in central bank policy expectations will continue to influence global bond, currency, and precious metals markets, keeping market volatility elevated for the foreseeable future.