Adrastea Finance

Adrastea Finance is a composable DeFi protocol on Solana that packages advanced yield strategies into accessible products. Governed by Amalthea Inc. and founded in September 2023, it targets two distinct audiences: passive investors who want amplified returns without actively managing positions, and protocols looking to generate yield on treasury assets. Its core offerings are a leveraged JLP product and a liquid restaking token, lrtsSOL.

Leverage JLP: Amplified Returns on Jupiter Liquidity Pool Positions

JLP is the index token that powers Jupiter's perpetuals exchange liquidity. Holders earn fees from that activity, and Adrastea's Boost product lets users amplify that exposure without actively managing the position.

The mechanism works in three steps. A user deposits JLP or USDC as collateral into a Boost position. Adrastea borrows additional capital from its passive lending pools, then uses those borrowed funds to purchase more JLP through Meteora Swap. The combined collateral and borrowed JLP sit in an on-chain "Ledger Position." When the user closes the position, Adrastea sells the leveraged JLP, repays the borrowed amount, and returns the net earnings in a single transaction.

Leverage is capped at 2x notional size. Maximum allowable slippage on Meteora Swap is 3%. The protocol charges zero protocol fees during active epochs; the only cost to Boost users is the variable borrow APY paid to passive pool lenders. The principal risk for Boost users is liquidation: if the value of collateral falls below the borrowed amount, the position is liquidated. Adrastea publishes a liquidation price for each position, and users are responsible for monitoring it.

Passive Pools: The Lending Side

Passive pools are single-asset lending pools that supply liquidity to Boost positions. Lenders deposit assets, earn variable APY funded by borrower interest, and face no liquidation risk and no impermanent loss — their positions are fully collateralized by Boost users' holdings.

Rates follow a two-slope interest rate model. Below a utilization threshold, the rate rises linearly with the slope coefficient. Above the threshold, the rate rises exponentially, creating strong incentive for new capital to enter and restore equilibrium when pools are heavily used. The only fee on the lending side is a 0.1% withdrawal fee.

High utilization can temporarily prevent full withdrawals. Adrastea's documentation acknowledges this constraint and explains that the rate spike is the market mechanism for resolving it.

Liquid Restaking: lrtsSOL

Adrastea launched lrtsSOL in October 2024, positioning it as the first liquid restaking token protocol on Solana. The product is built on Solayer's restaking infrastructure.

When a user deposits native SOL into Adrastea, the protocol mints lrtsSOL at the current exchange rate. The deposited SOL is converted to sSOL (Solayer's staked form) and delegated to validators, which in turn delegate to Actively Validated Services (AVSes). Solayer's system mints Delegate Tokens as on-chain proof of stake. The lrtsSOL token is yield-bearing: its value increases as staking rewards and AVS delegation rewards accumulate.

The Sonic AVS is Adrastea's primary AVS delegation partner. In October 2024, Adrastea announced a formal partnership with Sonic SVM and Solayer to expand the Solana restaking ecosystem, tied to Sonic's $50 million SOL delegation milestone on Solayer. Users who delegated through Adrastea to Sonic's AVS received lrtsSOL with access to both staking rewards and AVS incentives.

lrtsSOL can be used as collateral on the BANX lending market, allowing holders to borrow against their restaked position without unstaking. For users who want immediate liquidity, secondary market pairs let them swap out of lrtsSOL without waiting for an epoch boundary. The native withdrawal route through Adrastea requires waiting for the current epoch to conclude before claiming underlying SOL.

AVS routing is currently managed manually in collaboration with the community. Adrastea plans to build an automated routing engine to identify and delegate to top-performing AVSes without manual intervention.

adraSOL and Educational Initiatives

In March 2024, Adrastea launched adraSOL, a liquid staking token created in partnership with Sanctum. adraSOL adds a conventional LST to the product set alongside the restaking-oriented lrtsSOL.

The protocol also runs DeFi 101, a 10-module educational course on Solana DeFi fundamentals produced in partnership with Orca, Marginfi, FlashTrade, Sanctum, Hawksight, deBridge, Sandglass, and Clone Protocol. Adrastea plans a dedicated DeFi 101 webpage to house the full curriculum.

Funding, Audits, and Compliance

Adrastea raised $230,000 in a pre-seed round in December 2023. Offside Labs completed a smart contract security assessment in August 2024. The protocol also maintains an active bug bounty program. Despite the audit, Adrastea's documentation is explicit that smart contract risks cannot be eliminated entirely, and that the lrtsSOL product involves multiple third-party protocol interactions, each carrying its own vulnerability surface.

Users in jurisdictions listed as prohibited by Amalthea Inc. cannot access the protocol. The terms of service are governed by Panama law.

Fit in the Solana Ecosystem

Adrastea connects several distinct layers of the Solana DeFi stack. Its Boost product depends on JLP (Jupiter's liquidity index) and Meteora Swap for execution. Its liquid restaking depends on Solayer's infrastructure and on AVS operators like Sonic SVM. Its passive pools function as a lending market that any yield-seeking depositor can access without taking on leverage or restaking risk. The BANX integration adds a borrowing layer on top of lrtsSOL, extending capital efficiency further.

The November 2024 Liquid Restaking Epoch 1 airdrop campaign ran through July 2025, distributing rewards to early lrtsSOL holders and drawing attention to the protocol's restaking product. Adrastea's roadmap includes advanced and custom leverage options for experienced users who want personalized risk profiles beyond the current fixed-multiplier Boost structure.