Each of the six “A-Plastixx” indices mirror the price movement for a group of plastics key to a particular market segment such as packaging, construction, automotive and electrical. These are integrated into the existing Plastixx price indices and PIE’s data system, enabling comparisons to be made between the various indices and the equally indexed time series for all individual polymer grades as well as their petrochemical feedstocks.
The basis for the A-Plastixx indices is January 2002 with 1,000 points.
Like the Plastixx indices, the A-Plastixx indices are generated according to the principle of the "Paasche index". Each of the six indices mirror the price movement for a group of plastics key to a particular market segment. The monthly index calculation is based on the average market prices of the materials in Western Europe, weighted according to Western European consumption volumes. This weighting is updated annually.