AtaiBeckley Joins Russell 2000 and 3000 Indexes, Accessing $12.2 Trillion Benchmark
ATAI•AtaiBeckley will join the Russell 2000 and Russell 3000 indexes at market open on June 29 as part of the 2026 reconstitution, granting exposure to institutions tracking approximately $12.2 trillion in assets. This follows its March additions to the S&P Total Market, S&P Completion and CRSP U.S. benchmark indexes.
1. Index Inclusion Details
On June 29, AtaiBeckley will be added to the Russell 2000 and Russell 3000 indexes as part of the 2026 reconstitution conducted by FTSE Russell, reflecting its market-capitalization ranking among small-cap and broad-market U.S. equities.
2. Asset Benchmark Coverage
The Russell U.S. indexes collectively benchmark approximately $12.2 trillion in assets, offering AtaiBeckley visibility to a broad base of institutional investors, index-tracking funds and active strategies.
3. Previous Benchmark Expansions
In March 2026, AtaiBeckley secured inclusion in the S&P Total Market Index, S&P Completion Index and CRSP U.S. benchmarks, broadening its presence across major U.S. equity benchmark landscapes.



