Sign in


Relationship Mapping

Relationship intelligence solutions for dealmakers

Compensation Benchmarking

Executive compensation data solutions for HR teams


Equilar Institute



Sign in

Equilar Institute Reports

Equilar Q4 2018 Gender Diversity Index

Assessing Boardroom Equality Across the Russell 3000 and California

March 7, 2019

The Equilar Gender Diversity Index (GDI) has now increased for a fifth straight quarter. The percentage of women on Russell 3000 boards increased from 18.0% to 18.5% in Q4 2018. This acceleration once again moved the needle, pushing the GDI to 0.37, where 1.0 represents parity among men and women on corporate boards across the Russell 3000.

Please click on the image below to view highlights from this quarter’s GDI

The State of California recently passed a piece of legislation—SB 826—that will require public companies headquartered in California to have a minimum of one female on its board of directors by December 31, 2019. That minimum will be raised to at least two female board members for companies with five directors or at least three female board members for companies with six or more directors by December 31, 2021. Violators of this legislation will be subject to financial consequences.

To get a better sense of where California companies stand compared to the Russell 3000 as a whole, Equilar tracked the GDI of California-based Russell 3000 companies for Q4 2018. Currently, 18.1% of California directors are women—this positions the California GDI at 0.36, slightly lower than the entire Russell 3000. Additionally, 17.5% of companies headquartered in California do not have a women on their board, while 15.8% of all Russell 3000 boards have zero women.

“It’s safe to say that the percentage of public companies headquartered in California that do not have any women on their boards will decrease significantly,” said Susan Angele, Senior Advisor, Board Governance at KPMG’s Board Leadership Center. “Ideally, this will not be a check the box exercise but rather the visibility of the issue will enable boards to discover new networks and add fresh and valuable perspective to their boardroom discussions.”

Over the last few years, there have been various external factors that have added pressure on corporations to achieve greater diversity on boards, particularly from investors and proxy advisors. In February of 2018, BlackRock—the world’s largest money manager—publicly stated that companies in which it invests should have at least two female board members. Michelle Edkins, Global Head of Investment Stewardship at BlackRock, wrote a letter to Russell 1000 that have fewer than two women on the board to ask them to disclose their approach to boardroom and employee diversity.

“Negative votes from these investors against board directors, particularly against those serving as nominating or governance board chair, can damage the company’s reputation and potentially affect future board composition,” said Brigid Rosati, Director of Business Development at Georgeson. “It is important for companies to understand how investor voting policies might affect any director elections and potentially open the company to other corporate governance concerns and investor scrutiny.”

Indeed, there is a long way to go before gender parity is achieved across the Russell 3000—however, corporate America is moving in the right direction. At the current rate of growth of women on boards, gender parity would be achieved by 2034. This is significant progress from analyses Equilar conducted in Q4 2016 and Q4 2017 when parity was expected to be achieved in 2055 and 2048, respectively.

While achieving gender parity across the Russell 3000 may still be years from now, there are many companies that have already accomplished this feat. Currently, 41 companies have achieved gender parity, with seven of those being in California. A slight increase from 37 companies that reached gender parity by Q3 2018. This is a sure sign that companies are becoming more aware of the significance of diversity initiatives and taking action appropriately.

“In addition to external focuses, companies are beginning to better understand the long-term value a diverse board can bring to their company in establishing a successful corporate strategy,” said Rosati. “Overall, better alignment in director skill sets related to the new issues boards are looking at (cybersecurity, technology, corporate social responsibility) will drive improved board competency and efficiency in setting and overseeing corporate strategy.”

About Equilar Gender Diversity Index

The Equilar GDI reflects changes on Russell 3000 boards on a quarterly basis as cited in 8-K filings to the SEC. Most indices that track information about board diversity do so annually or even less frequently, and typically with a smaller sample size, sometimes looking back more than a full year by the time the information is published. While this data is reliable and accurate, the Equilar GDI aims to capture the influence of the increasing calls for diversity from investors and other stakeholders in real time.

The Equilar GDI is powered by Equilar BoardEdge, a database of more than public company board members and executives. BoardEdge includes exclusive features that show how board members and companies are connected to each other, as well as the Equilar Diversity Network (EDN), a “registry of registries” of board-ready executives from leading ethnic and gender diversity partnerships, organizations, and publications.


Amit Batish, Content Manager at Equilar, authored this article. Louisa Lan, Hailey Robbers, Lyla Qureshi and Matt Zellmer contributed data analysis. Please contact for more information.

equilar insight

Accurate, easy-to-use compensation benchmarking data at your fingertips

Learn More

Media Inquiries

(650) 241-6655

executive insider

Subscribe to our Newsletter to stay informed about upcoming events and webinars.