The Industrial Materials Price Index from the Foundation for International Business and Economic Research (FIBER) fell 3.7% last month and extended the retreat in prices since the peak two months ago. The decline left the index unchanged over the last twelve months. During the last ten years there has been a 65% correlation between the y/y change in industrial commodity prices and the y/y change in factory sector output.

Recent weakness was paced by a 7.3% one-month price decline (-4.7% y/y) in the miscellaneous group. Framing lumber prices declined 17.3% last month, but remained up 4.0% y/y. Prices for structural panels were off 11.3% during the last four weeks, but rose 1.3% y/y during the last year. Natural rubber prices eased 0.5% in four weeks and were down 12.0% in the last year. Prices in the metals group declined 3.6% in the last four weeks and were off 5.4% y/y. Leading the decline were zinc prices, off 5.1% m/m (-17.9% y/y). Steel scrap prices also were down 5.1% m/m (+15.9% y/y). Lead prices declined 4.4% over four weeks and 13.6% in a year. Aluminum prices weakened 3.0% m/m and eased 1.7% y/y. Also continuing to fall were copper scrap prices, off 1.8% in four weeks and 6.3% y/y. The textile group moved lower as well, where prices overall fell 1.0% last month (+2.6% y/y). Cotton prices declined 6.8% over the four weeks (+20.4% y/y) while burlap prices rose 1.1% m/m, but were down 3.9% during the past year. Prices in the crude oil & benzene sector fell by 0.7% m/m and were up 16.9% y/y. Crude oil prices fell 3.1% during the last four weeks, but rose by 40.3 y/y to an average $66.81 per barrel. Accompanying the recent decline was a 2.7% m/m rise in benzene prices which gained 16.2% y/y.

Renewed strength in prices overall may be coming. The consensus forecast for industrial output from the National Association for Business Economics (NABE) calls for a 3.8% rise during all of 2018 and 2.8% growth in 2019. During the last ten years, there has been 50% correlation between the three-month change in prices and the change in U.S. industrial output. In addition, factory sector production in the European Union and Japan continues to improve.

Commodity price data can be found in Haver's DAILY, WEEKLY, USECON and CMDTY databases. The NABE forecast is in the SURVEYS database.