1inch, the prominent decentralized finance (DeFi) ecosystem, officially launched Aqua to the public on July 28, 2026. This self-custodial shared liquidity layer is now live across 13 Ethereum Virtual Machine (EVM) compatible chains, including Ethereum, Arbitrum, Base, Robinhood Chain, BNB Chain, Optimism, and Avalanche.
The move introduces a significant alternative to DeFi’s traditional pool-based models. It aims to tackle long-standing issues like capital inefficiency and the necessity for liquidity providers to surrender custody of their digital assets.
Aqua Addresses DeFi’s Capital Efficiency Challenges
The current liquidity provisioning landscape within decentralized exchanges (DEXs) often forces providers to deposit tokens into pools. This model leads to fragmented and underutilized capital, as assets remain locked and frequently idle across various protocols and price ranges.
Sergej Kunz, co-founder of 1inch, didn’t mince words about the existing system. He stated, “The liquidity provisioning space is broken, but you only see how broken once there’s an alternative. Today, that alternative has arrived.” Aqua positions itself as one of the first risk-controlled mechanisms designed to bypass the conventional pool structure.
On-chain research by Dune, commissioned by 1inch, starkly illustrates this inefficiency. For the first half of 2026, the study found approximately 85% of concentrated liquidity across major DEXs was underutilized. That represents a substantial $1.6 billion out of the $1.84 billion tracked.
A different analysis from the same study showed that, on average, 29.5% of concentrated liquidity sat outside the active trading range over a 26-week period. This translates to about $542 million lying dormant each week across just four protocols, underscoring a systemic issue with idle capital.
Aqua’s Self-Custodial Approach to Liquidity
Aqua operates on a registry-based system, offering a fundamentally different approach to liquidity provision. Instead of depositing tokens into a shared pool, a provider connects their wallet and approves a specific token balance for use by the protocol.
The system only pulls necessary tokens from the provider’s wallet when a swap order matches a pre-defined position. Then, the trade and associated fees are settled in a single, atomic transaction, ensuring tokens remain under the provider’s direct control until actively used.
This self-custodial design marks a significant departure from existing models, directly addressing a key concern for many potential liquidity providers, particularly those managing larger capital allocations. Holly Atkinson, Chief Product and Technology Officer at 1inch, emphasized this benefit. “Aqua is solving three core problems in DeFi…
We solve the problem of giving up custody by depositing tokens into liquidity pools, because Aqua is self-custodial,” she noted.
Aqua also introduces a virtual balance system that enhances capital efficiency. A single balance can effectively support multiple quotes simultaneously, multiplying its potential reach. For instance, a $100,000 balance could back three positions collectively quoting $300,000 in liquidity, all without any borrowing and with each swap executing only against assets actually held in the wallet.
Anton Bukov, also a 1inch co-founder, previously highlighted that Aqua “solves the liquidity fragmentation issue for market makers by stimulating the multiplier effect of effective capital.” This approach means a provider’s strategy becomes the primary determinant of capital efficiency, rather than structural protocol limitations.
Multi-Chain Deployment and Robust Security Measures
The public debut of 1inch Aqua sees it live across 13 distinct EVM chains. This broad interoperability ensures widespread accessibility, covering major ecosystems such as Ethereum, Arbitrum, Base, Robinhood Chain, BNB Chain, Optimism, and Avalanche.
Security has been a paramount concern for 1inch, especially given Aqua’s self-custodial nature. The protocol has undergone eight independent security audits from reputable firms, including OpenZeppelin, Bailsec, Hashlock, Hexens, MixBytes, Nethermind, Theori, and Decurity.
While Aqua is designed never to hold user tokens, and a clear revocation process allows providers to halt new fills swiftly, users still face inherent market and smart-contract risks. But this extensive audit process aims to mitigate common vulnerabilities that have plagued other DeFi protocols, as DeFi security concerns remain a critical topic.
At launch, Aqua offers several key functionalities to enhance the user experience. These include a liquidity leaderboard, an incentives screen, detailed liquidity map visualizations, and the ability to create batch positions. Providers can also leverage cross-chain profiles and sub-wallets to streamline their operations.
Incentivizing Early Adoption and Future Growth
To spur early adoption and foster a vibrant ecosystem, the 1inch Foundation has committed a substantial liquidity reward program. It’s injecting 10 million 1INCH tokens into this initiative. Additionally, the 1inch DAO has proposed adding 500,000 USDC, pending approval through a governance vote.
This incentivization program, delivered through Merkl and managed by Degensoft, is designed to attract liquidity providers and reward their participation in the new model. The project underscores 1inch’s commitment to shifting industry norms around how liquidity is managed and utilized within decentralized finance.
Looking ahead, 1inch has hinted at further innovations, with an AI-assisted liquidity provisioning flow via the 1inch Business MCP marked as “coming soon.” This planned feature suggests a continued push towards optimizing and simplifying the liquidity provision process, potentially lowering the barrier to entry for more participants and enhancing overall market efficiency.