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Sunday, May 24, 2026

Cipher: Stablecoin reserves, Uniswap v4, and SEC crypto enforcement — May 2026

#1

Tether Publishes Full Reserve Attestation for Q1 2026 — 98% US Treasuries

Full attestation from a Big Four firm is a structural shift in stablecoin credibility. If the precedent holds, redemption risk repricing follows across DeFi collateral.

→ The Block
#2

Uniswap v4 Hooks Unlock Custom AMM Logic — TVL Crosses $8B in 30 Days

Hooks architecture is the biggest AMM upgrade in years. Protocols building on v4 hooks can now offer concentrated liquidity with custom fee tiers — the long tail of DeFi liquidity provision just shifted.

→ DefiLlama
#3

SEC Charges Two DeFi Protocols as Unregistered Securities Exchanges

The SEC is applying the Howey test to on-chain governance tokens, not just centralized exchanges. This filing defines the enforcement boundary every DeFi protocol needs to understand now.

→ SEC.gov
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