Strategies & Capabilities

Self Indexing

We provide a global suite of proprietary indexes backed by our vast resources, informed by our exceptional knowledge of indexing, and forged by a robust, methodical process.

Our Expertise


40+ Yrs

Track Record In Managing Indexed Strategies



Assets Under Management *



Countries Covered

Why Us?

Developed by an Asset Manager

State Street is a global titan of asset management, with more than $2.8 Trillion in AUM (as of March 31, 2019)* across more than 500 different strategies. Our indexes are developed in-house and leverage 40 years of indexing heritage and the collective expertise of some 150+ professionals in 7 hubs across the globe.

Indexes are not just a product to us: as a pioneer of index investing, we have extensive experience implementing them, and we understand how details like rebalance dates and frequency can erode or preserve investor wealth. We have applied this experience and provide a suite of indexes built by an asset manager for asset managers.

Methodical Process

Our indexes provide a comprehensive and unbiased barometer for their respective market segments because of the transparent, rules-based approach with which we construct them. Indexes are reconstituted at appropriate intervals to ensure continued representation of the market.


We currently provide a broad array of factor-weighted and capitalization-weighted indexes, across the emerging and developed worlds, and covering the entire capitalization spectrum.We also construct focus or niche indexes that enable more-granular and targeted exposure selection. The consistent construction methodology behind our indexes ensures a perfectly modular index line-up.

Our Mission

The foundations of our mission will not expire. We will always pursue responsible investing as a means to enable economic prosperity and social progress. We will continue to develop proprietary indexes that adhere to this mission and embody it. To let us know your thoughts, comments, or suggestions about our mission.

Email the Team

The Indexes

SSGA Gender Diversity Index

The SSGA Gender Diversity Index is designed to track the performance of US large-capitalization companies that are leaders within their respective industry sectors in advancing women through gender diversity on their boards of directors and in senior leadership positions. This is the first index of its kind, and is a landmark on the ESG landscape.

State Street Global Advisors is currently seeking feedback on potential changes to the SSGA Gender Diversity Index. Please send any feedback you may have.

Email the Team

SSGA US Low Volatility Indexes

These include the SSGA US Large-Cap Low-Volatility Index and the SSGA US Small-Cap Low-Volatility Index. The indexes are designed to track the performance of US large-and small-cap companies, respectively, that exhibit low volatility(a measure of the magnitude of movements in a stock’s price over time). This index suite applies our proprietary factor definitions, distillingyears of research and experience.

View our Methodology

US Cap-Weighted Indexes

These include the SSGA Large-Cap Index, SSGA Small-Cap Index, and the SSGA Total-Market Index. These indexes are designed to provide a comprehensive and unbiased barometer for theirbroad respective market segments and are reconstituted semi-annually to ensure continued appropriate representation of each market segment. This index suite enables us to democratize investing even more by facilitating the provision of ultra-low cost funds.

View our Methodology