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WASHINGTON (December 19, 2017) – The Chemical Activity Barometer (CAB), a leading economic indicator created by the American Chemistry Council (ACC), expanded 0.6 percent in December on a three-month moving average (3MMA) basis and 0.4 percent on an unadjusted basis. The CAB is up 3.7 percent compared to a year earlier. Barometer readings were revised upwards for November (0.22), October (0.39) and September (0.08) as 2017 closes on a solid note, suggesting further business activity gains through the third quarter of 2018. 

The Chemical Activity Barometer has four primary components, each consisting of a variety of indicators: 1) production; 2) equity prices; 3) product prices; and 4) inventories and other indicators.

In December, production and inventories were up, while equity and product prices declined. December’s diffusion index contracted to 59 percent. The diffusion index is the number of positive contributors relative to the total number of indicators monitored.

The Chemical Activity Barometer is a leading economic indicator derived from a composite index of chemical industry activity. The chemical industry has been found to consistently lead the U.S. economy’s business cycle given its early position in the supply chain, and this barometer can be used to determine turning points and likely trends in the wider economy. Month-to-month movements can be volatile so a three-month moving average of the barometer is provided. This provides a more consistent and illustrative picture of national economic trends.

Trends in construction-related resins, pigments, and related performance chemistries were positive and suggest further progress in housing activity. U.S. exports also rose again.

Applying the CAB back to 1912, it has been shown to provide a lead of two to fourteen months, with an average lead of eight months at cycle peaks as determined by the National Bureau of Economic Research. The median lead was also eight months. At business cycle troughs, the CAB leads by one to seven months, with an average lead of four months. The median lead was three months. The CAB is rebased to the average lead (in months) of an average 100 in the base year (the year 2012 was used) of a reference time series. The latter is the Federal Reserve’s Industrial Production Index.

CAB Dec 2017

The CAB comprises indicators relating to the production of chlorine and other alkalies, pigments, plastic resins and other selected basic industrial chemicals; chemical company stock data; hours worked in chemicals; publicly sourced, chemical price information; end-use (or customer) industry sales-to-inventories; and several broader leading economic measures (building permits and new orders). Each month, ACC provides a barometer number, which reflects activity data for the current month, as well as a three-month moving average. The CAB was developed by the economics department at the American Chemistry Council.

The next CAB is currently planned for: January 23, 2018 | 9:00 a.m. Eastern Time 


The CAB is designed and prepared in compliance with ACC’s Antitrust Guidelines and FTC Safe Harbor Guidelines; does not use company-specific price information as input data; and data is aggregated such that company-specific and product-specific data cannot be determined.

Note: Every effort has been made in the preparation of this publication to provide the best available information. However, neither the American Chemistry Council, nor any of its employees, agents or other assigns makes any warranty, expressed or implied, or assumes any liability or responsibility for any use, or the results of such use, of any information or data disclosed in this material.


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