Index Composition ViewerGain insight into index inclusion, passive AUM exposure, and sustainability metrics.
Understand the passive AUM tracking MSCI’s Sustainability & Climate Indexes
Explore the scale of passive capital tracking these indexes—and how inclusion may contribute to increased demand for your company’s stock.
See how you’re represented
Identify which indexes include your company, your weight, passive AUM (ETF and non-ETF) and relevant sustainability metrics.
Benchmark against peers
Stack performance and index exposure against sector and regional peers to find competitive edge — or gaps.
Make data-driven decisions
Leverage Index Composition Viewer to help support data-driven strategic decisions that may impact a company’s sustainability profile and potential for enabling index inclusion and/or re-weighting.
Index exposure that matters
A snapshot of MSCI's index, sustainability and climate leadership.
Benchmarks at scale
Over $1 trillion in assets benchmarked to MSCI Sustainability & Climate indexes.1
#1 in market share
MSCI ranks #1 in both the number of ETFs and assets tied to Sustainability & Climate Equity indexes.1
ETF leaders use MSCI
12 of the top 15 equity sustainability ETFs (by AUM) are linked to MSCI indexes — all with more than $4.5B in assets.2
Resources and research
MSCI Index Methodologies
Access current or past index methodologies by inserting the index code or index name into our search tool, accessible via the button below.

Understanding MSCI Climate Indexes
Designed to reflect investors’ broad range of climate-related preferences.

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Gain perspective on sustainability and climate
Assess companies on their financially relevant sustainability risks and opportunities.

1 Total assets benchmarked to MSCI indexes comprised of (1)actively managed assets under management (AUM) as of December 31, 2024, reported on or before March 31, 2025, using data from eVestment for active institutional funds, Morningstar for active retail funds and internal MSCI data; (2)indexed non-ETF AUM as of December 31, 2024 using data directly collected by MSCI; and (3)indexed ETF AUM as of December 2024. ETF AUM based on data from Refinitiv and MSCI for periods on or after April 26, 2019 and from Bloomberg and MSCI for periods prior to April 26, 2019. For funds where AUM was not reported as of December 31, 2024, the previous period AUM was utilized as an estimate ETF is defined as each share class of an exchange traded fund, as identified by a separate ticker; only primary listings, and not cross-listings, are counted. MSCI does not guarantee the accuracy of third-party data. Active retail funds include open-ended funds, closed-ended funds and insurance product funds. Active institutional AUM includes separate/segregated AUM, pooled/commingled AUM and mutual fund institutional AUM.
2 Data based on Refinitiv Universe as of December 2024. Includes primary and secondary listings, not cross-listings