ARK 21Shares
About ARK 21Shares
ARK 21Shares is the joint ETF partnership between ARK Invest (led by Cathie Wood) and 21Shares (now a FalconX subsidiary). The partnership is best known for the ARK 21Shares Bitcoin ETF (ARKB), a physically-backed spot Bitcoin ETF launched January 2024 that tracks the CME CF Bitcoin Reference Rate. ARKB is one of the largest spot Bitcoin ETFs in the US with over $5 billion in assets. 21Shares was acquired by FalconX in November 2025, though the ARK 21Shares product partnership continues under the existing co-advisory structure with ARK Investment Management as sub-adviser.
Last updated: June 12, 2026
Company Details
- Website: https://www.ark-funds.com/funds/arkb
- Founded: Est. 2021
- Headquarters: New York, NY
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