U.S. producer prices were unchanged in July, and investors treated the softer headline as welcome evidence that inflation pressure may be easing. The S&P 500 rose 0.7% on Thursday, August 13, to a record close of 7,798.99.

The better headline does not mean wholesale inflation disappeared. A measure that excludes food, energy and trade services rose 0.4% in July and was also 4.7% higher than a year earlier, according to the Bureau of Labor Statistics. The useful reading is therefore mixed: falling energy and food prices cooled the overall index, while several underlying service costs kept climbing.

That split matters because markets are trying to judge whether the Federal Reserve will raise interest rates at its next scheduled meeting on September 15–16. One monthly report can shift expectations, but it cannot settle the decision.

The numbers behind the headline

The Producer Price Index for final demand was flat in July after edging down 0.1% in June. Over 12 months, final-demand prices rose 4.7%, down from 5.5% in June.

Goods prices fell 0.7% in July. Energy prices dropped 3.1%, food prices declined 0.9%, and gasoline accounted for more than half of the overall goods decrease with a 5.7% fall. Services moved the other way, rising 0.2%, while final-demand construction prices advanced 2.2%.

The core-like measure excluding food, energy and trade services deserves attention because it removes categories that can swing sharply or reflect retail and wholesale margins. Its 0.4% monthly increase accelerated from 0.1% in June. Portfolio-management prices rose 6.5%, while prices also increased in several retailing categories.

Why markets rallied anyway

Investors focused on the fact that the broad index was cooler than expected and that the year-over-year rate slowed. Treasury yields fell, easing some pressure on stock valuations and borrowing costs. The 10-year Treasury yield dropped to 4.65% from 4.68% late Wednesday, according to the Associated Press.

The Nasdaq Composite gained 0.8% and the Dow Jones Industrial Average added 0.1%. Brent crude fell 2.1% to $87.07 a barrel, adding another short-term inflation relief signal. Real-estate shares were among the stronger groups because lower bond yields can make dividend-paying property companies more attractive.

But a record index is a market reaction, not proof that inflation is solved. Stock prices reflect expectations about future profits and interest rates, and those expectations can change quickly as new data arrive.

What the Federal Reserve still needs to see

The July report gives policymakers evidence that goods inflation cooled, particularly in energy. It also gives them reasons for caution: services rose, construction costs jumped, and the underlying measure remained firm.

Before the September meeting, officials will receive more labor-market and inflation data. They will also weigh how energy prices, tariffs, wages and demand are moving through the economy. The next producer-price report, covering August, is scheduled for September 10.

For investors and borrowers, the practical takeaway is to separate the headline from the composition. A flat monthly PPI reduced immediate pressure, but the 0.4% underlying increase means one softer report is not a clean all-clear for rates.