Tether Investments has joined a $134 million financing round for Stablecoin Development Corporation (NYSE American: SDEV), a publicly traded holding company focused on stablecoin infrastructure and digital asset access. The deal, confirmed on April 15, 2026, included participation from other investors such as R01 Fund LP, Sky Frontier Foundation, and Framework Ventures.
The investment underscores the explosive growth of the stablecoin sector. Global stablecoin circulation has now crossed the $300 billion mark, reflecting growing trust in dollar-backed digital assets. In 2025, stablecoin transaction volume reached a staggering $33 trillion, surpassing the combined volume of payment giants Visa and Mastercard. Tether alone serves over 570 million users of its USDT token worldwide.
SDEV operates as an on-chain holding company, aiming to reduce friction and improve user experience in stablecoin and decentralized finance systems, from payments to cross-platform transfers. A significant part of SDEV's strategy involves holding governance tokens of foundational DeFi protocols. As of March 31, 2026, SDEV holds approximately 2.15 billion SKY tokens, representing roughly 9.15% of the total supply. SKY is the governance token for Sky Protocol, the rebranded MakerDAO, which issues the USDS stablecoin—the third-largest stablecoin by market cap and the largest operating entirely on-chain.
Tether CEO Paolo Ardoino stated that stablecoins now serve real financial needs far beyond trading, particularly in regions where traditional banking is inaccessible. "His focus is on making infrastructure more dependable for daily use. That, he said, is what the next phase of adoption depends on," the report notes. Michael Kazley, CEO and Chairman of SDEV, highlighted Tether's foundational role in bringing stablecoins to real-world use and described SDEV's aim to be a public-market platform aligned with long-term stablecoin growth.
