Points of Focus

• The Bank of Canada found Aave-style lending can function without traditional intermediaries.
• Aave V3 recorded zero non-performing loans, with smart-contract liquidations maintaining solvency and protecting lenders.
• While lenders faced no bad debt, borrowers absorbed losses of 10–30% during liquidation events.

A new Bank of Canada research paper examining decentralized lending on Aave has concluded that lending without traditional financial intermediaries is technically and operationally viable, while also warning of structural risks including liquidation cascades and leveraged borrower concentration.

The staff analytical paper, “DeFi Lending: Returns, Leverage, and Liquidation Risk,” analyzed lending activity between January 2023 and May 2025 using transaction-level data from Aave V3, the largest decentralized lending protocol by total value locked.

The study found that automated smart-contract lending can match borrowers and lenders, enforce collateral constraints, and maintain solvency without banks or centralized oversight.

Researchers found the system operates continuously, transparently, and with minimal operational overhead – key characteristics that differentiate DeFi lending from traditional banking infrastructure.

BREAKING: The Bank of Canada published a report on Aave.

It concludes that lending without traditional intermediaries is technically and operationally viable, with the system running continuously, transparently, and at minimal overhead. pic.twitter.com/wvxOqFnDOW

— Aave (@aave) April 3, 2026

However, the report also highlighted several structural limitations, including capital inefficiency from over-collateralization, liquidation-driven losses during volatility, and systemic fragility from recursive leverage. 

Automated lending with no defaults

Unlike traditional banks, Aave relies on smart contracts, algorithmic interest rates, and over-collateralized loans. Borrowers must deposit crypto assets worth more than the loan value, while liquidations occur automatically when collateral values fall below risk thresholds.

The study found that Aave V3 recorded zero non-performing loans, as automated liquidations prevented lender losses and ensured protocol solvency.

The report also found:

• Recursive leverage accounts for roughly 20% of borrowing activity
• Liquidations occur in clustered waves during market downturns
• A small group of large borrowers drives most liquidation events
• Borrowers can lose 10–30% during forced liquidations due to penalties and missed price recovery

Bankless founder Ryan Sean Adams said the Bank of Canada’s report on Aave is largely favorable, arguing that the findings suggest DeFi lending “actually works” with real-world data to support it. He added that a central bank recognizing a “bankless bank” marks a notable step toward broader institutional acceptance of decentralized finance.

However, others view the report more cautiously, arguing that regulators who closely study liquidation risks are more likely to craft targeted rules rather than impose blanket restrictions, making the report a net positive for the sector.

Liquidation and leverage risks to be aware of

The report found that leveraged borrowers, a small subset of users, account for a disproportionate share of borrowing activity and liquidation losses, raising concerns about concentrated risk during market stress.

Aave had zero bad debt in 2024… but that doesn’t mean zero risk.

A recent study shows the system works by design: overcollateralization + auto-liquidations protect lenders before positions go underwater.

But here’s the tradeoff doesn’t disappear, it shifts.

– Borrowers take… pic.twitter.com/l98bBiQLes

— Wess (@WessWeb3) April 3, 2026

Liquidations also tend to occur in bursts following sharp asset price declines, particularly for ETH-linked collateral, according to the analysis.

According to X user Omer Husain, the Bank of Canada’s findings on Aave V3 highlight a key tradeoff: while the protocol recorded zero bad debt, borrowers absorbed losses of 10–30% during liquidations, with about 20% of activity driven by recursive leverage. He noted that although Aave worked as designed, the results raise questions about whether DeFi lending is building sustainable credit markets or primarily enabling leveraged trading loops.

Recent Aave incidents highlight concerns

The findings come amid recent incidents that have drawn attention to DeFi lending risks.

Earlier this year, a large swap routed through an Aave-linked interface resulted in an extreme slippage event, where a trader reportedly lost tens of millions of dollars after executing a large transaction in thin liquidity conditions.

Separately, market volatility has triggered multiple liquidation waves across DeFi platforms, highlighting how automated systems can amplify market moves.

While these events were not protocol failures, critics argue they underscore the need for improved risk management and user protections.

For now, the report concludes that Aave demonstrates decentralized lending can function without traditional intermediaries, but with a different risk profile.

As central banks and institutions continue evaluating blockchain-based credit markets, the Bank of Canada’s findings highlight both the promise and the limitations of DeFi lending infrastructure.