Why earn with fija?
Explore our USD Yield Booster Strategy


This delta-neutral strategy uses GMX and AAVE to generate stable yield on USD deposits while minimizing market exposure. Designed for passive income with smart-contract automation and built-in risk control.
Strategy Description
Key Facts:
- Go-live Date: April 29, 2024
- Blockchain: Arbitrum One
- Deposit Currency: USDC
- Strategy Creators: fija (in-house DeFi team) & Rudy Capital GmbH
The Web3 Vault on AscendEX (USD) is powered by the USD Yield Booster strategy based on the GMX protocol, a professionally built DeFi strategy developed by fija’s in-house DeFi experts in collaboration with Rudy Capital GmbH.
While the strategy itself operates natively with USDC on Arbitrum, it is available to AscendEX users via the USD balance shown in your account. Behind the scenes, AscendEX handles the conversion, allowing you to benefit from real, on-chain DeFi yield — without needing a wallet, bridge, or any technical setup.
How It Works: Liquidity Provision on GMX
Once you deposit USD into the Web3 Vault, it is converted into USDC and allocated into the GMX ETH-USDC liquidity pool — a decentralized market-making pool on GMX, a leading exchange on Arbitrum. This pool enables trading activities such as swaps and leveraged long/short positions. The strategy provides USDC as liquidity to the pool and earns returns from:
- Trading and swap fees
- Borrowing fees from leveraged traders
- Liquidation fees when traders’ positions are closed
These returns vary based on GMX trading activity — higher trading volumes mean higher potential yield for Vault users.
Hedging Price Risk Using Aave
Since the ETH-USDC pool includes both assets, part of the deposited USDC gets automatically converted into ETH. To eliminate exposure to ETH price volatility, the strategy includes a sophisticated hedging mechanism using Aave, a decentralized lending protocol:
- The strategy borrows ETH using USDC as collateral
- Then sells that ETH back for USDC, effectively creating a short ETH position
- This neutralizes ETH price risk, keeping your exposure pegged to USD
To further optimize risk, the strategy continuously monitors open interest on GMX — whether traders are mostly long or short — and dynamically adjusts the hedge based on real-time market conditions.
Risk Management & Optimization
To ensure safety and maintain a delta-neutral position, the strategy uses two key rebalancing mechanisms:
1. ETH Exposure Monitoring
The strategy targets to avoid net ETH exposure (delta neutrality). If exposure rises above 2% of the strategy value, the hedge is automatically rebalanced.
2. Aave Health Factor Monitoring
Aave’s Health Factor shows how secure the loan position is.
- If the Health Factor drops below 1.2, rebalancing is triggered to avoid liquidation.
- If it rises above 1.7, it is also adjusted to improve capital efficiency.
- The target Health Factor is set at a safe midpoint of 1.5.
Through this mechanism, the Web3 Vault (USD) on AscendEX gives users access to:
- ~12% APY target (variable, based on real trading activity)
- Fully automated, immutable, on-chain DeFi infrastructure
- No wallet, bridging, or whitelisting needed
- USDC-based strategy, accessible directly via your USD balance on AscendEX
- Developed and maintained by fija and Rudy Capital, combining deep DeFi expertise with institutional-grade execution
If you're looking for stable, transparent crypto yield — this is it.
Frequently Asked Questions
What is fija?
fija is a VC-backed fintech from Germany that delivers compliant, easy and transparent access to real DeFi (Decentralized Finance) yield strategies. Founded by a team of experienced tech entrepreneurs, DeFi experts and engineers, fija’s vision is to enable anyone to earn yield on their crypto.
With the Web3 Vault on AscendEX, you can earn 12% APY on your USD/USDC deposits — with no wallets, no bridging, and no technical setup required.
What is the Web3 Vault?
The Web3 Vault gives you access to a fully automated, delta-neutral DeFi strategy designed to earn stable yield in USD/USDC — without the complexity.
Here’s how it works:
✅ fija offers you a fixed APY, paid in USDC
✅ This yield is generated by running a DeFi strategy behind the scenes
✅ The strategy provides liquidity to the GMX ETH/USDC pool
✅ It hedges ETH exposure using Aave
✅ It rebalances dynamically based on real-time market conditions
The returns from this DeFi strategy are used to fund the fixed APY you receive — so you can earn passively, while fija manages everything in the background.
What is delta-neutral?
Delta-neutral means that the strategy is structured to have no net exposure to price movements in volatile assets (like ETH).
Even though the strategy interacts with ETH in the GMX pool, it opens a short position on Aave to offset that exposure.
This helps:
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Protect your deposit from market swings
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Keep the strategy focused on generating yield, not speculative gains or losses
Why should I use a fija-designed Web3 strategy?
fija works exclusively with professional DeFi strategists, Web3 experts and crypto hedge funds.
All strategies are:
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Backtested and screened for performance and risk
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Designed by proven market participants (e.g. Validvent Technology GmbH)
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Continuously monitored and optimized via automation
You benefit from expert-level strategy design, without having to manage or even understand the underlying complexity.
What’s the advantage of using fully automated, smart contract-based strategies?
Smart contracts bring transparency and efficiency to yield generation:
- Investors keep full control over the investment, there is no possibility for fija to access the investment.
- No manual execution — everything is pre-programmed
- No human error or interference
- Real-time performance and automated rebalancing
- Funds remain non-custodial and auditable at all times
This creates a trustless, consistent, and transparent investment process.
What APY can I expect?
The Web3 Vault currently offers 12% APY, based on real activity in DeFi protocols — not token inflation or marketing rewards.
How is the yield generated?
The yield comes from a high-efficiency, on-chain, fully automated DeFi strategy.
It earns through:
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Trading fees and liquidations from GMX
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Lending dynamics from Aave
Returns are variable and depend on real trading activity within GMX.
Do I need a wallet or any DeFi experience?
No. fija makes DeFi simple and accessible.
You don’t need:
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A Web3 wallet (like MetaMask)
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Any bridging or on-chain setup
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Technical or DeFi knowledge
Just deposit USDC into the Web3 Vault via AscendEX and start earning at the click of a button.
Does fija have access to my deposit?
No. fija never holds your funds.
Your deposit is secured in audited, non-custodial smart contracts — meaning there’s no counterparty risk from fija.
Is fija secure?
Yes. fija ensures institutional-level security:
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Smart contracts are audited by EU-based third parties
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No manual control — execution is fully automated
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Non-custodial architecture — funds always remain in the smart contracts
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Emergency plans are in place for risk scenarios
Who designs fija strategies?
Strategies are created by professional DeFi experts and hedge fund managers.
They must pass strict due diligence by fija before the launch.
Who can use fija strategies?
fija strategies are used by:
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Users of crypto exchanges, brokers and custodians to earn yields on the crypto they hold on the exchange/broker/custodian
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Professional investors like family offices and VCs
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Investment & Hedge Funds
Where are fija strategies available?
fija strategies are offered by:
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Crypto exchanges
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Custodians
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Crypto Brokers
Now, AscendEX users can access these same strategies — with zero friction.
What is the fija Safety Score?
The fija Safety Score rates each strategy’s risk profile by analyzing:
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Protocol risks (e.g. Aave, GMX)
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Blockchain security (e.g. Arbitrum)
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Token volatility
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Strategy complexity
What risks should I be aware of?
DeFi is not risk-free.
Key risks include:
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Smart contract bugs or exploits
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Unexpected market behavior affecting yield
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Token price fluctuations on AscendEX
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Protocol-level failures
Risk management features incorporated by fija include:
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Delta-neutral structure
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Rebalancing based on ETH exposure and Aave’s Health Factor
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Strategy diversification
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Emergency exit mechanisms
What blockchain does the strategy run on?
This strategy operates on Arbitrum One, a fast, low-fee Layer 2 scaling solution for Ethereum.
How long should I keep my funds in the strategy?
Ideally, as long as possible.
The longer your funds remain in the Vault, the more your returns benefit from:
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Compounding (interest on interest)
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Reinvestment of earned yield
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Reduced short-term exposure to temporary market fluctuations
fija strategies are designed for passive, long-term income generation, not short-term speculation.
However, you can withdraw your funds anytime, when you need it.
What makes this earning feature special?
This isn’t just another “Earn” product — it’s a direct, automated connection to real DeFi yield:
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fija enables investors to access DeFi yields out of the comfort of an exchange. All the complexity is taken away, but the benefits of DeFi prevail: Full control & transparency.
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Yield comes from real protocol revenue (not token emissions or rewards)
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The strategy is audited, delta-neutral, and institutionally designed
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No wallets, bridging, or technical steps required
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It brings DeFi-grade returns to centralized exchange users — seamlessly
It’s one of the first truly integrated, smart contract-based DeFi strategies on a CEX.