The ICIS Weekly Margin – Ethylene US Analytics is published weekly

  • It contains the business model, the margin calculation and the model yield pattern and calculation
  • In the USG there are 14 pricing inputs used to generate the full content of the analytics and there are conversions to ethane, benzene, gasoline, residual fuel oil and natural gas
  • There is also a section for short-term changes and longer range views such as ethane versus naphtha feed and contract versus spot
  • The margin analytics are designed to complement ICIS’ highly regarded pricing data and provides a clear indication of the direction of business cash costs and cash margins, forming a basis for informed market positioning by sellers, buyers and traders

Active Documents

Ethylene US Variable Margin Analytics Methodology – 25 July 2019


This document provides methodology support for customers using ICIS Ethylene US Variable Margins. ICIS continuously develops, reviews and revises its methodologies in consultation with industry participants. Previous versions of this methodology can be found under Archived Documents. For a copy of an archived methodology document, please email To find out more, please see Ethylene-US-Variable-Margin-Analytics-Methodology-25-July-2019