Tether is building a Bitcoin empire: control over Twenty One Capital secured

Tether International has acquired SoftBank's stake in XXI, gaining full control and bolstering its Bitcoin strategy. Integration with Strike and Elektron Energy is on the horizon.

Tether International has bought out SoftBank's entire stake in Twenty One Capital (XXI), consolidating control over one of the largest public Bitcoin treasuries. The deal was announced on May 20, 2026, after which SoftBank representatives exited the board of directors at XXI in accordance with the shareholder agreement.

Twenty One Capital was established in December 2025 through a merger with a SPAC, kicking off with over 43,500 BTC. Initially, the company was backed by Tether, SoftBank, and Cantor Equity Partners. This acquisition strengthens Tether's position as the majority shareholder and supports its strategy to create a public company focused on Bitcoin.

Following the news, XXI's shares surged in pre-market trading. Tether has also proposed merging XXI with Strike and Elektron Energy, indicating plans to expand beyond the Bitcoin treasury into a broader Bitcoin-based financial platform. This move opens a new phase for XXI, as Tether aims to integrate Bitcoin treasury, financial services, mining, lending, and capital markets on a single platform.

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