Aave Proposes Custodied Collateral Lending for Institutions

Steady attention without excessive speculation.

The idea arrived as an ARFC on the Aave governance forum on 14 September, and Aave’s official account shared it on X a day later. Importantly, this is a discussion draft. There is no Snapshot vote, no final parameters, and no launch date yet.

What the Custodied Collateral Lending Proposal Would Do

The Aave Proposes Custodied Collateral Lending model targets a simple institutional need. Big borrowers want on-chain liquidity, but they also want their assets to stay with a regulated custodian.

Under the design, an institution would keep its collateral at Anchorage for the full life of the loan. Aave would then see that balance on-chain as a non-transferable receipt token called the Custodied Collateral Token, or CoCT.

The borrower would post CoCT on a dedicated Spoke and draw stablecoins from a new Isolated Hub. So the loan lives on Aave, yet the underlying asset never moves on-chain.

To start, the ARFC proposes a single CoCT instance that represents Bitcoin held in Anchorage custody. Notably, the text does not name which stablecoins borrowers could draw, and it does not set loan-to-value ratios or caps. Aave’s risk service providers would decide those later.

How the Collateral Stays at Anchorage

The mechanics behind what Aave Proposes matter here, because they are the whole point. Anchorage would hold the actual Bitcoin and run the system that tracks balances and loan events.

In practice, the institution first signs an Account Control Agreement with Anchorage. That legal agreement, not the token, is what gives lenders their claim on the collateral.

Then Chainlink infrastructure reads the custodied balance and drives a contract that mints or burns CoCT to match it. As a result, the on-chain supply of CoCT always reflects what sits in custody.

Crucially, the underlying asset is never held by Chainlink, by the mirroring contract, or by Aave itself. It stays in the bank the entire time.

Chainlink CustodySync and the CoCT Token

Chainlink’s proposed role in what Aave Proposes runs on three tracks, according to the ARFC. First, its runtime environment reconciles the custodian’s records with the on-chain CoCT supply.

Second, a Proof of Reserve contract records the custodied balance on-chain. Proof of Reserve is an existing Chainlink product, though “CustodySync” as a named service appears here for the first time.

Third, Chainlink price feeds price the Bitcoin for Aave. The same data flows to Anchorage too, so both books value the collateral off one shared mark rather than two.

CoCT itself is a transfer-restricted token. Only the Hub, the Spoke, and the sync contract can hold it. In other words, it is not a claim ticket that a borrower can sell on the open market.

Why Liquidation Happens Off-Chain

This is where the design breaks from normal Aave. A public liquidator cannot seize Bitcoin that sits inside a bank.

Instead, Anchorage would run the liquidation as an over-the-counter sale of the underlying Bitcoin. The custodian sells the asset, then uses the proceeds to settle the on-chain debt.

The flow is meant to be tidy. First, a trigger fires. Next, the custodian registers a liquidation commitment with a unique ID, and partial liquidations are supported.

Finally, a single atomic transaction repays the debt, withdraws the CoCT, burns it, and clears the commitment. If any step fails, the whole transaction reverts.

Why Aave Built It as an Isolated Hub

Aave V4 uses a Hub-and-Spoke structure, and that is the key to this design. The proposal calls for one new Isolated Hub plus one new Spoke, both governed by the DAO.

Because the Hub is isolated, custodied collateral would have no exposure path to assets on other Hubs. So a problem with one custodian borrower should not reach Aave’s Core or Prime markets.

This is not the first time Aave has courted institutions. Aave Arc tried a permissioned pool in 2022, and Aave Horizon brought tokenized real-world assets on-chain in 2025.

The difference now is where the asset lives. Here the Bitcoin stays unwrapped in a bank, and only a mirror of it touches Aave. V4 went live on Ethereum on 30 March 2026, which makes this build possible.

The Risks and Open Questions

The trade-off in what Aave Proposes is a new set of dependencies. Normal Aave liquidations are permissionless, but here lenders rely on Anchorage to sell collateral and settle on time.

So suppliers to this Isolated Hub would underwrite custodian solvency, the enforceability of the legal agreement, over-the-counter liquidity, and the liveness of the Chainlink sync. Those are real risks, and the isolation only protects everyone else.

Skeptics will also ask a fair question. Anchorage already plugged institutions into on-chain lending with Spark, Kamino, and Ethena, so why does Aave need a fresh Hub?

The stated answer is control and containment. The CoCT token, the isolated V4 Hub, and the DAO-governed sync contract are what set this apart from those earlier deals, at least on paper.

What Happens Next for Custodied Collateral Lending

The path from here follows Aave’s usual process. If forum sentiment is positive, the proposal moves to a Snapshot vote, and then to an AIP with final parameters if that vote passes.

Market reaction has been muted so far. AAVE traded near $124 to $125 on 15 September, roughly flat on the day, so no clear announcement pump showed up in the price.

The reported size of Aave V4 also depends on who you ask. DefiLlama pegged V4 total value locked near $399 million, while founder Stani Kulechov said on X that V4 crossed $900 million in deposits. That gap likely reflects deposits versus net value locked.

For now, Aave Proposes Custodied Collateral Lending as a proposal and nothing more.Readers should watch the forum thread and the Snapshot stage to see whether the DAO backs it. This article is not financial advice.