The Federal Reserve's preferred measure of inflation eased modestly in May, falling to the lowest levels in more than three years and possibly cementing the case for an autumn rate cut.

The Bureau of Economic Analysis' PCE Price Index showed core prices rose at an annual rate of 2.6% last month, matching Wall Street's forecast and coming in modestly lower than readings over the past two months and the slowest since March of 2021.

On a monthly basis, core pressures were up 0.1%, a slower pace compared with revised April's 0.3% gain that also matched Wall Street's consensus estimate.

Markets often key on the bureau's core PCE price index, which the Fed considers a more accurate representation of consumer-price pressures since it blends changes in spending patterns.

The headline index, meanwhile, held at an annual rate of 2.6%, matching Wall Street's forecast. Prices were unchanged on the month, the BEA said, following a 0.3% gain in March.

The BEA also noted that personal incomes for May rose 0.5%, up from the 0.3% pace in April, reflecting some firmness in the labor market. Spending slowed to a 0.2% rise compared with the 0.1% gain in April

Stocks were little-changed following the data release, with the S&P 500 called 20 points higher and the Dow Jones Industrial Average looking at an early point advance.

Benchmark 10-year note yields eased 4 basis points to 4.275% following the release, while 2-year notes eased 3 basis points to 4.6871%.

The U.S. dollar index, which tracks the greenback against a basket of six global currencies, was marked 0.01% higher at 105.920.

Earlier this month, the Commerce Department's headline Consumer Price Index for May was pegged at 3.3%, down from the prior month's tally of 3.4%.

So-called core inflation, which strips out volatile components like food and energy, slowed to an annual rate of 3.4%, the lowest in more two years.

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The CME Group's FedWatch tool suggests the market is expecting no change in rates from the Federal Reserve when its two-day May policy meeting ends on July 31 after holding rates steady at a two-decade high of 5.25% to 5.5% earlier this month.

Bets that the Fed starts cutting rates in September, however, are holding at around 58%, with markets still debating the odds of a second rate cut before the end of the year.

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