Why Citi Sees Aave as a Fix for Wall Street’s Collateral Problem

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• Citi Research has named Aave among the leading live applications of tokenized financial infrastructure.
• Citi sees collateral mobility as one of the first practical uses of asset tokenization.
• S&P Global data shows Aave controls the largest share of decentralized lending.
• None of the research amounts to a price call on the AAVE token.

Citi Research has named Aave among the leading real-world applications of tokenized financial infrastructure, according to accounts of a research note that circulated on October 20, one week after the bank’s Citi Services unit published a broader paper on tokenized collateral arguing that the technology has left the pilot stage and entered live operations. The timing gives the bank’s view a quantitative backdrop, since S&P Global Ratings released its own detailed review of the Aave lending protocol on October 13.

Citi has not published the full wording of the Aave passage, so its exact phrasing rests on reports of the note, and nothing in the available material points to a price target for AAVE, an investment by the bank or a commercial agreement with Aave Labs.

Collateral That Works Around the Clock

Collateral is whatever a borrower pledges to secure a loan, a margin position or a derivatives contract, and in traditional markets moving it between banks, custodians and clearinghouses still depends on business hours and settlement cycles that can stretch over several days. In “The Digital Frontier: Collateral in a Tokenized World,” Citi argues that tokenized assets paired with regulated on-chain cash, such as tokenized bank deposits or stablecoins, make atomic delivery versus payment possible, which means the security and the payment change hands in the same transaction and neither party is left exposed if the other fails to deliver.

The paper also points to tokenized money market fund shares, which an institution could pledge as collateral while they keep earning yield, something cash parked at a clearinghouse usually does not do. Citi expects a multi-year hybrid period in which traditional and tokenized collateral run side by side, and its Citi Institute forecast from June puts the tokenized financial asset market at $5.5 trillion by 2030 in a base case, up from about $17 billion when the report came out, with a bull case of $8.2 trillion.

Aave Already Runs Citi’s Model in Public

Aave already runs, on public blockchains, the mechanism Citi describes for institutions: users deposit collateral, borrow against it, and smart contracts enforce the limits and start liquidation when the collateral’s value drops too far. S&P highlights the protocol’s dual thresholds, where one level caps how much a user can borrow and a second, higher level decides when a position gets liquidated, leaving a buffer between the two that protects lenders during sharp price moves.

The institutional version of that model is Aave Horizon, which Aave Labs launched in August 2025 so that qualified institutions could borrow stablecoins against tokenized securities and real-world assets. Regulated instruments come with identity checks, investor eligibility rules and approved wallets, and Horizon builds those requirements into the lending process. Aave Labs reported more than $440 million in deposits in February 2026, but DefiLlama data shows about $254 million of collateral locked in Horizon on October 18 and $121 million in active loans, down from a peak of $421 million in January, so institutional demand has not yet grown in step with the bank’s thesis.

What S&P Found Behind the $19.2 Billion

Aave held about $19.2 billion in total value locked in September, roughly 37% of a decentralized lending market that S&P sizes at $52 billion, down from around $92 billion in October 2025. DefiLlama data puts the figure at about $17.97 billion on October 20, or close to 35% of a $51.5 billion lending market, after Aave’s deposits slipped from $19.68 billion on October 5. Cristina Polizu, managing director at S&P Global Ratings, said the protocol made DeFi “more open, programmable, and capital efficient.”

The report also points to the sector’s main weakness, since most borrowing on these platforms funds leverage through looping, a strategy where a user deposits an asset, borrows against it and redeposits the borrowed funds to multiply exposure, so the credit Aave creates today serves traders far more than businesses. Tokenized Treasuries and fund shares used as collateral would push part of that activity toward something closer to the secured lending banks already do. S&P adds that large depositors account for a big share of liquidity, which leaves lending conditions sensitive to the moves of a few participants.

A Protocol Win Is Not a Token Win

AAVE gives holders a vote on protocol parameters, and more institutional volume would lift protocol revenue, yet the share that reaches token holders depends on how governance decides to allocate that revenue. DefiLlama has recorded no treasury-funded AAVE buybacks since July, after about $42.9 million had reached holders that way, while the protocol earned roughly $5 million in revenue over the past 30 days and the token traded near $150 on October 20, about 10% lower than a week earlier. Banks also have alternatives of their own: Citi runs Citi Token Services, which already moves client liquidity between its branches around the clock, and many institutions may prefer permissioned networks to public DeFi.

Where the Institutional Test Happens

The next measurable signals are Horizon’s deposit figures and the list of tokenized assets Aave governance approves as collateral, since every new fund or bond token has to pass valuation, liquidity and transfer-restriction checks before institutions can borrow against it. Smart-contract bugs, oracle failures and forced liquidations in volatile markets remain the risks that risk committees will price first. Aave V3 already had one such incident in March 2026, when an oracle misconfiguration on Ethereum led to an $862,000 loss that was later returned, a reminder that a single pricing error can hit a lending market even when its core contracts hold.

Citi’s paper also warns that running separate digital and conventional collateral programs could fragment an institution’s inventory and erase the efficiency gains, and it advises asset managers, pension funds and insurers to check whether their providers can manage both kinds of holdings together. For Aave, that makes integration with custodians and existing collateral systems the practical hurdle, more than the size of the 2030 forecasts.

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