‍Where do Yields Actually Come From?

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DefiLlama currently tracks major lending platforms — Aave V3 and Compound offer 4–6% APY on USDC and USDT. DEXs like Aerodrome on Base advertise 4–23%, largely fueled by AERO token emissions. CeFi platforms like Binance have run campaigns with headline APRs of 8% and even 30%. These are capped and temporary.

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A Regular.eu analysis from May 2026 puts realistic ranges at 2–6% in CeFi and 3–10% in DeFi, with spikes above 12% during promotional incentive windows.

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Much of the gap above TradFi rates traces back to token emissions, points campaigns, and leverage strategies — mechanisms that are not self-sustaining. Crypto Daily reported that stablecoin supply yields have fallen to roughly 2–4% APY in 2026, down from 8–12% during the 2022 cycle.

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Tokenized Treasuries Are Setting the Floor

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Tokenized U.S. Treasuries on Ethereum hit ~$8 billion in May 2026, with the broader RWA market crossing $12 billion by March. BlackRock's BUIDL holds $1.7–2.45B in AUM at ~3.45% yield. Ondo's USDY sits at ~$683M market cap yielding 3.55–4.8% APY.

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These products create an on-chain benchmark. If you can hold a tokenized Treasury at 4%+ with minimal smart contract risk, any strategy paying meaningfully more needs to justify the additional risk it carries.

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Why Compression Is Happening

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Three forces are at work. First, more capital entering DeFi lending pools pushes borrowing rates — and therefore yields — down. Second, emission schedules are finite; Pendle's weekly token emissions tapered through April 2026, and protocol treasuries funding liquidity mining are not bottomless. Third, institutional entrants like BlackRock are shifting market expectations toward revenue-based models over subsidized incentives.

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What the High-Yield Era Built

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The elevated yields funded real infrastructure. Stablecoin transaction volume hit ~$33 trillion in 2025, exceeding Visa's ~$14–16.7T in annual payments. Bessemer Venture Partners estimated that even adjusted for on-chain noise, stablecoin volumes grew 91% to $10.9T, approaching Visa's $14.2T. Total stablecoin supply reached $321 billion by April 2026, up 40x from $6.8B in 2020.

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Visa expanded stablecoin settlement to nine blockchains at $4.6B annualized volume. Meta started paying creators in USDC. The GENIUS Act established a federal regulatory framework. Chainalysis projects adjusted volumes could reach $719T–$1.5 quadrillion by 2035.

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DeFi's base yield layer — lending, market-making, tokenized Treasuries — is converging with TradFi rates, plus a spread for smart contract and counterparty risk. Anything above that base increasingly requires identifiable, additional risk rather than subsidized tokens. The yields are normalizing, but the rails they built are not.