Recently, I have been looking at the on-chain lending market and some interesting things have emerged. This sector is no longer just a game for crypto enthusiasts — it has completely transformed.

By early 2026, the total TVL of on-chain lending reached $64.3 billion. Its share across all DeFi sectors is now over 53%. In other words, it has become the largest and most mature part of DeFi.

Take a look at Aave — with approximately $32.9 billion in TVL alone. In second place is Compound, with just $2.6 billion. Aave’s dominance is so strong that challenging it doesn’t seem easy. But it’s not just because of branding or network effects — Aave is continuously upgrading its technology. Version 4 is coming, which will strengthen cross-chain clearing and the institutional compliance framework.

What excites me more is the development pattern of this sector. Initially, it was just a leverage tool — people borrowed funds by collateralizing crypto and then deployed it into DeFi strategies. But the Terra/Luna crash in 2022 and the FTX debacle changed everything. Now, it has become an asset allocation infrastructure.

Three factors are driving this change. First — regulatory clarity. MiCA was implemented in Europe, and the SEC approved ETFs. Second — the arrival of RWA (Real-World Assets). Now, US government bonds, corporate credit, real estate — all have become primary collateral in on-chain lending. RWA lending now exceeds $185 billion. Third — stable interest rates. Protocols like Notional and Pendle are bringing fixed-rate lending.

It’s starting to work like a savings machine — stable income, low risk, a legal gateway for institutional investors. Ondo Finance’s OUSG (US bond token) has surpassed $1 billion. BlackRock’s BUIDL is over $50 billion. These legal assets are now the backbone of on-chain lending.

But risks are also significant. Clearing waterfall — when prices fall rapidly, a chain reaction can start. Credit default — when institutional borrowers default. Cross-chain security — risks from bridge hacks. In 2022, the Ronin Bridge lost $625 million.

Here are the protocols I see:

Aave ecosystem — Morpho Labs (has become fully independent with Morpho Blue), Spark Finance (linked to MakerDAO’s DSR). They are building a strong ecosystem together with Aave.

RWA pathway — Ondo, Maple, Centrifuge. Ondo is working with BlackRock, Maple already has institutional borrowers, and Centrifuge is financing physical assets.

Fixed-rate innovation — Pendle has changed the game with yield separation. In 2024, its TVL increased tenfold to over $10 billion. Notional is offering traditional fixed-term loans.

But caution is essential. Smart contract risk — Euler Finance was hacked for $197 million. Liquidity concentration — if a large portion of an asset like (stETH) is held, systemic risk increases. Regulatory risk — SEC or MiCA frameworks could classify these protocols as securities.

My advice — allocate 20-30% of your portfolio to on-chain lending. Keep the main position in the Aave ecosystem, with supporting positions in RWA and fixed-rate innovations. And always respect smart contract risks.

This sector is now moving from the verification phase to the institutional adoption phase. Over the next 2-3 years, it could grow even larger, especially if institutional capital flow continues.