Block & Bond Brief — March 14, 2026

Your daily edge on tokenized securities and real-world assets — Saturday, March 14, 2026

📌 TOP STORY

Circle Dethrones BlackRock in Tokenized Treasuries as $11B Market Hits Record

The tokenized U.S. Treasury market surged to a fresh record above $11 billion this week — up 27% year-to-date — and it has a new leader. Circle's USYC token has grown to approximately $2.2 billion in supply, overtaking BlackRock's USD Institutional Digital Liquidity Fund (BUIDL), which now holds around $2 billion. BlackRock's BUIDL, once the undisputed heavyweight with a 46% market share at its May 2025 peak, has seen that share compress to roughly 18% as competition from new entrants intensified.

A significant driver of USYC's ascent: Binance adopted the token as off-exchange collateral for institutional derivatives trading on BNB Chain, channeling institutional demand for on-chain yield directly into Circle's product. The episode underscores how on-chain utility — not just brand — is increasingly determining capital flow in the tokenized asset space. (CoinDesk, March 13)

🏦 COMPANY MOVES

• Superstate / Galaxy Digital — The Block published a detailed look at how Superstate executed the tokenization of Galaxy Digital's Class A common stock (GLXY) on Solana, and what the platform plans next for public equity tokenization. The piece is a useful case study in the mechanics of bringing listed shares on-chain — custody, compliance, and the ongoing secondary liquidity challenge. (The Block, March 13)
• BlackRock — BlackRock's staked Ether ETF logged over $15.5 million in trading volume on its first day, a debut that The Block described as "very solid" for a novel product category. While distinct from its BUIDL fixed-income offering, the launch demonstrates BlackRock's continued push to build regulated, institutional on-ramps into digital-asset yield. (The Block, March 13)
• Ondo Finance / MEXC — MEXC expanded its tokenized equity listings, partnering with Ondo Finance to list 17 tokenized U.S. stocks including names in the defense and energy sectors. The exchange framed the move as bringing institutional-grade exposure to retail and professional traders outside the U.S. market. via Business Insider, March 4

⚖️ REGULATORY WATCH

SEC Narrows Its Tokenization Exemption Scope — Commissioner Hester Peirce signaled that the SEC's innovation exemption for tokenized securities is taking shape as a deliberately "narrower" construct than some market participants had hoped. Speaking in context of the Investment Adviser Committee's review of a draft approach, Peirce indicated the exemption is intended to carve out space for experimentation without broadly relaxing disclosure obligations. The framing suggests the Commission is threading a careful needle: opening a sandbox without creating regulatory arbitrage. (The Block, March 13)

U.S. Senate Votes to Ban Retail CBDC Issuance — The Senate passed legislation prohibiting the Federal Reserve from issuing a central bank digital currency directly to the public, a move widely expected following the House's earlier vote. The bill now heads to the President's desk. Notably, the legislation does not restrict wholesale CBDC experimentation — meaning Fed-to-bank settlement infrastructure remains an open research track, while the retail lane is now formally closed at the federal level. (Finextra, March 13)

📊 MARKET SNAPSHOT

🔍 WORTH WATCHING

Bank of Japan Tests Blockchain Settlement — Governor Ueda confirmed earlier this month that the BOJ will experiment with blockchain-based settlement for central bank reserves — a wholesale digital money track that sits entirely outside the now-banned U.S. retail CBDC debate. The BOJ's move, reported by Reuters and The Block in early March, follows similar pilots from the BIS and European central banks and keeps the door open for tokenized interbank settlement infrastructure even as retail CBDC ambitions stall in several major economies. Watch for whether the BIS Innovation Hub's Project Agorá evolves alongside these national experiments as a cross-border settlement layer.

The broader pattern is worth noting: retail CBDCs are facing political headwinds in the U.S. and parts of Europe, while wholesale tokenized money — the plumbing that institutional markets actually need — is quietly advancing through central bank labs and private-sector consortia. These tracks are not in conflict; they're running in parallel.

📚 SOURCES

• Circle overtakes BlackRock in tokenized Treasuries as market hits record $11 billion — CoinDesk, March 13, 2026
• How Superstate tokenized Galaxy's stock and what's coming next — The Block, March 13, 2026
• SEC working on 'narrower' exemption for tokenized securities: Hester Peirce — The Block, March 13, 2026
• BlackRock's staked Ethereum ETF records over $15.5 million volume on first day — The Block, March 13, 2026
• US Senate passes bill banning issuance of CBDCs — Finextra, March 13, 2026
• MEXC Partners with Ondo Finance to Launch Tokenized US Equities — via Business Insider, March 4, 2026 (no direct article URL used)
• Bank of Japan to test blockchain-based reserve settlement — via Reuters / The Block, March 2–3, 2026 (no direct article URL used)

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