Aave V4 targets Wall Street’s $12 trillion repo market

Stani Kulechov, on June 19 pitched Aave V4 as a bridge between Wall Street and DeFi, arguing that bringing securities financing on-chain could unlock a multi-trillion-dollar market and accelerate institutional adoption of crypto-native infrastructure.

Specifically, this initiative would be directed towards three parts of Wall Street’s securities financing industry: collateralized loans backed by securities, repurchase (repo) agreements, and securities lending. The concept was put forth by Stani Kulechov in his blog post on X and described by him as “one of the largest markets that almost nobody outside Wall Street thinks about.”

The numbers behind the pitch

Kulechov supported his claims with figures that illustrate the scale of the opportunity. He claims that the U.S. repo market alone accounts for an average daily balance of about $12.6 trillion. There is an additional $1.3 trillion through margin financing and over $400 billion through collateralized securities loans in wealth management. In turn, the securities lending market includes $4.6 trillion in lendable assets and produced an all-time high of $15 billion in revenue in 2025.

In comparison with the figures mentioned above, the current DeFi lending industry is relatively insignificant. Aave has proven itself to be the largest decentralized lending protocol by market share. Its highest deposits made up about $75 billion in 2025 and total borrowings have exceeded $1 trillion. These numbers might seem impressive for the crypto market, but they are still tiny compared to the traditional securities financing market.

How Aave V4 may help securities financing move on-chain

Aave V4 is an Ethereum-based protocol that follows the hub-and-spoke framework. There is a common liquidity layer at the core, and various “spokes” act as lending markets in their own right, each defining its own collateral parameters, risk settings, and liquidation mechanisms, yet sharing the common liquidity pool. This approach enables the functioning of several markets simultaneously without establishing different liquidity pools for each of them.

Stani Kulechov has described it as a potential link to securities finance. His idea is that tokenized securities could be used as collateral in order to borrow stablecoins, such as GHO, or other dollar-denominated coins.

In addition, there is a change in the approach to the settlement process. Trades based on the repo model could be settled in real-time on-chain rather than waiting until the end of the T+1 or T+2 settlement period. In the case of the securities lending framework, the tokenized assets would be made lendable and yield earnings directly by their owners.

This process can have either one liquidity center that is common or several centers based on different types of collateral, depending on the nature of assets and the level of risks associated. One liquidity center improves liquidity, while several liquidity centers improve risk isolation. In the opinion of Kulechov, a practical way forward is to have one liquidity center first and then proceed to several liquidity centers as collateral types expand.

Why this matters for crypto markets

Kulechov’s proposal is ultimately a gamble that the next growth cycle in DeFi will not emerge due to crypto-native products but via the adoption of the plumbing of traditional finance on-chain.

Aave already leads in decentralized lending services. By the end of 2025, the protocol owned 61.5% of the active loan market share and more than half of the total lending sector’s total value locked (TVL), as stated in their year-in-review. Additionally, its Horizon platform, created together with VanEck, Circle, and Securitize, became one of the largest institutional real-world asset (RWA) lending marketplaces in DeFi. Hence, Aave has already started working towards mass adoption of tokenized finance.

The main obstacle is not technical capability, but adoption.

Securities financing is already one of the most refined areas in traditional markets. Every day, trillions of dollars flow through repo agreements and securities lending systems that sit on decades of legal frameworks and increasingly automated infrastructure.

For these activities to shift onto blockchains, the technology would need to offer clear, practical advantages. That could mean cheaper funding, quicker settlement, smoother movement of collateral, or better access to liquidity across markets.

Aave V4 is interesting in this context. Its structure separates pooled liquidity from more specialized lending environments, which resembles how large financial institutions already organize risk internally. Rather than trying to rebuild securities financing from scratch, it effectively mirrors the way the system already works—just running it on public blockchain infrastructure.

The potential is huge, but so are the obstacles. Institutions need to overcome the challenge of smart contract risks, issues around governance and regulations, and the operational challenges of dealing with tokenized collateral at scale. Aave’s focus on the creation of segregated liquidity hubs and improved risk management also shows how even their project depends as much on trust and regulation as on the technical solution.

This means Kulechov’s plan is not just a new product roadmap for Aave. It is an experiment that will determine whether public blockchains will be able to eventually provide similar solutions to the ones that Wall Street has been building for decades. If they succeed, then Aave V4 could become a basic credit protocol for tokenized assets. Otherwise, they can still capture significant market share within the crypto and RWA markets.

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