The Women on Boards Traffic Light Index is a review of the companies in the ASX200 to evaluate their response to Principles 2 and 3 of the ASX Corporate Governance Principles & Recommendations and their progress towards improved reporting and performance on gender balance in their workplace. Typically, this information is sourced from Annual Reports and on the websites of the selected organisations.

In 2012 Women on Boards reviewed 82 companies from the ASX200. This was extended to the entire ASX200 in 2013.