Tether International has acquired SoftBank Group’s equity position in Twenty One Capital, the publicly traded Bitcoin-focused treasury company listed on the NYSE under the ticker XXI, according to an announcement published on May 20, 2026. The transaction, whose financial terms were not disclosed, resulted in SoftBank’s board representatives stepping down in accordance with the company’s shareholder agreement, consolidating Tether’s controlling ownership of a firm that currently holds approximately 43,514 Bitcoin valued at roughly 3.4 billion dollars.

SoftBank Exit and Governance Restructuring

Twenty One Capital launched in December 2025 through a SPAC merger with Cantor Equity Partners and is headquartered in Austin, Texas. At formation, Tether International and Bitfinex held majority ownership, with SoftBank Group and Cantor Fitzgerald serving as initial investors. SoftBank’s minority stake came with board representation, providing what Tether CEO Paolo Ardoino described as “institutional depth that few early-stage companies ever have.” With the acquisition complete, SoftBank’s governance role has ended, and Tether now holds an even larger share of the company’s equity structure. The move effectively narrows the ownership base of one of the largest publicly listed Bitcoin holders to its original crypto-native backers.

Bitcoin Treasury Strategy and Market Position

Twenty One Capital ranks as the second-largest Bitcoin holder among publicly traded companies, behind only MicroStrategy’s parent entity. The company measures its performance through a “bitcoin per share” metric, positioning shareholders as indirect Bitcoin accumulators rather than traditional equity investors. CEO Jack Mallers, who previously founded the Lightning Network payments application Strike and played a prominent role in El Salvador’s Bitcoin adoption, has steered the company toward vertical integration. Pending merger proposals include combining with Strike for payments infrastructure and with Elektron Energy for Bitcoin mining operations. The company has traded within a market capitalization range of approximately 3 to 5 billion dollars since its December 2025 debut, though it launched with only three full-time employees.

Strategic Implications for Tether and the Bitcoin Treasury Model

Ardoino framed the acquisition as a deepening of Tether’s conviction in the Bitcoin treasury model rather than a signal of investor retreat. Tether’s press release stated that the transaction “reflects the continued development of XXI as the company builds on its foundation and advances its long-term Bitcoin strategy.” The consolidation comes at a time when the Bitcoin treasury company model pioneered by MicroStrategy has attracted growing institutional attention, with several firms adopting similar strategies of holding Bitcoin as a primary reserve asset on their balance sheets. For Tether, which generates substantial revenue from USDT reserve management, the tighter grip on XXI provides another channel for deploying capital into Bitcoin-related infrastructure.

Risks and Uncertainties

The concentration of ownership in Tether’s hands raises governance questions, particularly given that XXI is a publicly traded entity with outside shareholders. Critics have noted that the company’s thin staffing and heavy reliance on pending mergers for operational scale introduce execution risk. The Bitcoin treasury model itself remains vulnerable to sharp declines in Bitcoin’s price, which would directly impair the company’s balance sheet and the value proposition of its bitcoin-per-share metric. SoftBank’s decision to exit, regardless of the stated rationale, may also prompt questions about whether one of the world’s most prominent technology investors sees diminishing returns in the Bitcoin treasury thesis. The absence of disclosed financial terms makes it difficult to assess whether the transaction was conducted at favorable or discounted terms.

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