About a-team Marketing Services
The knowledge platform for the financial technology industry

A-Team Insight Blogs

Russell Expands Investment Discipline Indexes

Subscribe to our newsletter

Russell Investments announced today that it will expand its Investment Discipline Indexes (IDIs) to include U.S. small cap indexes. Specifically, four new Investment Discipline Indexes will be added to Russell’s lineup, each reflecting a particular approach to small cap security selection commonly practiced by professional money managers.

“We are very excited to expand our line of investment discipline indexes into the small cap arena, where we believe our clients can particularly benefit from high quality tools. These indexes draw from Russell’s strength in researching professional money managers and our pioneering history in indexing, particularly in small cap stocks,” said Rolf Agather, managing director of index research and innovation at Russell Investments. “Over time, Russell analysts have identified common characteristics and preferences among investors seeking attractive investment opportunities across capitalizations. Our new small cap investment discipline indexes provide additional tools for small-cap investors to gain exposure to these strategies.”

To expand the Russell Investment Discipline Indexes to the small cap arena, Russell analysts defined the four most widely practiced approaches of professional investment managers of small cap and categorized them into individual investment disciplines. The new Investment Discipline Indexes include the Russell U.S. Small Cap Aggressive Growth Index, Russell U.S. Small Cap Consistent Growth Index, Russell U.S. Small Cap Low P/E Index and Russell U.S. Small Cap Contrarian Index.

Russell Investments, a leader in U.S. equity indexes, introduced the concept of small-cap equity indexes in 1984. Today, the Russell Indexes currently have U.S. $3.9* trillion in assets benchmarked to them. The new small cap Investment Discipline Indexes build on the original methodology behind Russell’s six U.S. large cap investment discipline indexes, introduced in May of this year.

Subscribe to our newsletter

Related content

WEBINAR

Recorded Webinar: The Data Office at a Crossroads — AI Governance, Organisational Design, and the Evolving Mandate of the CDO

Who owns AI governance in a capital markets firm – and is the Data Office structured to bear that weight? These questions sit at the heart of A-Team Research’s latest findings, presented here for the first time: the combined results of two landmark surveys examining the role of the Data Office in AI governance and...

BLOG

Broker Licensing Agreements Under Scrutiny as AI Reshapes Buy-Side Data and Research Market

Traditional data and research purchase arrangements may be holding back the buy-side from using artificial intelligence to take full advantage of new sources of market and other information. Restrictions associated with broker and data licensing agreements were cited as the biggest barrier to adoption of direct data and research feeds by two-thirds of global asset...

EVENT

ExchangeTech Summit London

A-Team Group, organisers of the TradingTech Summits, are pleased to announce the inaugural ExchangeTech Summit London on May 14th 2026. This dedicated forum brings together operators of exchanges, alternative execution venues and digital asset platforms with the ecosystem of vendors driving the future of matching engines, surveillance and market access.

GUIDE

AI in Capital Markets: Practical Insight for a Transforming Industry – Free Handbook

AI is no longer on the horizon – it’s embedded in the infrastructure of modern capital markets. But separating real impact from inflated promises requires a grounded, practical understanding. The AI in Capital Markets Handbook 2025 provides exactly that. Designed for data-driven professionals across the trade life-cycle, compliance, infrastructure, and strategy, this handbook goes beyond...