WASHINGTON—A gauge of U.S. business prices ticked up in June, another signal of moderating inflation pressures.

The producer-price index for final demand, which measures changes in the prices that U.S. companies receive for their goods and services, increased a seasonally adjusted 0.1% in June from a month earlier, the Labor Department said Thursday. The month-over-month increase was slightly higher than economists expected, but overall, price pressures continued to remain soft in June.

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