yoEUR - EURC Vault
yoEUR is a multichain euro-denominated vault from YO Protocol (yo.xyz) that accepts EURC (Circle's MiCA-compliant euro stablecoin) and automatically allocates it across the best risk-adjusted yield strategies in DeFi. YO Protocol uses Exponential.fi's risk ratings framework to evaluate pools before allocating funds.
YO Protocol is a multi-chain DeFi yield optimizer founded by Mehdi Lebbar and Driss Benamour (co-founders of Exponential.fi, formerly at Uber). The protocol raised $24M total ($14M seed led by Paradigm, $10M Series A led by Foundation Capital), with participation from Coinbase Ventures.
How the yoEUR vault works:
- Deposit EURC into the yoEUR vault on Base (or Ethereum).
- Receive ERC-4626 compliant vault shares representing your growing portion of the vault.
- YO's algorithm automatically allocates EURC across 50+ evaluated DeFi protocols — currently including Tokemak, Aave, and Fluid EURC markets.
- The vault rebalances daily to chase the best risk-adjusted yield opportunities.
- Withdraw at any time — no lock-ups.
EURC is issued by Circle Internet Financial Europe SAS, licensed as an Electronic Money Institution under France's ACPR (Banque de France). It is fully MiCA-compliant with 100% euro reserves in segregated EEA bank accounts and monthly third-party attestations. EURC has a market cap of ~$445M and holds ~42% of total euro stablecoin supply.
Basic Information
Fundamentals
TVL
APR
Statistics
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| Period Start | N/A | N/A | N/A | N/A |
| Period End (inclusive) | N/A | N/A | N/A | N/A |
| APR | N/A | N/A | N/A | N/A |
| CAGR (APY) | N/A | N/A | N/A | N/A |
| TVL High | N/A | N/A | N/A | N/A |
| TVL Low | N/A | N/A | N/A | N/A |
Liquidity
Not calculated yet
Liquidity analysis will be available soon
Strategy
- Acquire EURC
- Obtain EURC via Circle Mint (institutional) or MiCA-compliant exchanges (Coinbase, Bitstamp, Bitpanda)
- Alternatively, swap on-chain from USDC or other stablecoins
- EURC is available on Ethereum, Base, Avalanche, Solana, and Stellar
- Deposit EURC into yoEUR vault
- Navigate to app.yo.xyz and select the yoEUR vault (available on Base and Ethereum)
- Deposit EURC and receive ERC-4626 vault shares
- Currently all fees are set to zero (protocol-sponsored)
- Earn automated, risk-adjusted yield
- YO's algorithm allocates EURC across evaluated DeFi protocols (Tokemak, Aave, Fluid, etc.)
- The vault rebalances daily to optimize for the best risk-adjusted returns
- Pools are evaluated using Exponential.fi's risk framework before allocation
- Additional Merkl rewards may boost effective APR
- Withdraw at any time
- No lock-ups — redeem vault shares for EURC plus accumulated yield
- Currently no withdrawal fees
Yield Source
The yoEUR vault generates yield by algorithmically allocating EURC across multiple DeFi protocols, rebalancing daily to target the best risk-adjusted returns. The protocol evaluates pools using Exponential.fi's risk ratings before any allocation.
Current yield sources:
- Tokemak baseEUR vault: Primary allocation — earns yield from Tokemak's liquidity provision, boosted by TOKE token emissions
- Aave EURC lending: Interest earned from supplying EURC to Aave lending markets (~5% APY historically for EURC on Aave)
- Fluid EURC lending: Interest from Fluid's EURC lending market
- Merkl rewards: Additional incentive layer providing bonus yield on top of base protocol returns
Yield characteristics:
- Euro-denominated: All yield is earned in EURC (EUR terms), not USD
- Current APR: ~9% (including ~7% base yield + ~3% Merkl rewards, less fees)
- Daily rebalancing: The algorithm shifts allocations daily to capture the best risk-adjusted returns
- Fees: Currently set to zero (protocol-sponsored); configurable deposit/withdrawal fees may be introduced
Euro-denominated lending yields tend to be lower than USD equivalents due to less borrowing demand, but YO's multi-protocol allocation and Merkl rewards currently boost effective returns.
Strategy Limits
Deterministic Constraints
- Euro DeFi Market Depth: Euro-denominated pools and lending markets have significantly lower liquidity than USD equivalents
- Vault TVL: yoEUR vault is relatively small (~$1M TVL), which may limit strategy diversification
- Protocol-Managed Allocation: Users cannot choose which underlying protocols receive funds — the algorithm decides
- Merkl Reward Dependency: A portion of yield comes from Merkl incentives which may be temporary
Probabilistic Constraints
- Lending Rate Fluctuation: EURC borrowing demand can compress yields during bearish markets
- Tokemak Emission Risk: TOKE emissions boosting Tokemak yields may decrease or end over time
- Thin Euro Liquidity: Large vault rebalances or withdrawals may face slippage in shallow euro pools
- EUR/USD Exchange Rate Risk: For non-EUR base currency users, EUR/USD fluctuations affect dollar value of the position
Underlying Assets/Allocations
Risk Analysis
Potential Risks
Based on the YO Protocol documentation and EURC documentation:
- Smart Contract Risk (Multi-Layer) — The vault interacts with multiple underlying protocols (Tokemak, Aave, Fluid); a vulnerability in any layer could lead to loss of funds
- Operator/Centralization Risk — Authorized operators manage allocation decisions; misconfiguration or compromised operator keys could result in poor allocations or fund loss
- Strategy Risk — Underlying DeFi protocols carry their own risks including exploits, insolvencies, and governance attacks
- Liquidity Risk — Euro-denominated DeFi markets have significantly lower liquidity than USD; large withdrawals may face slippage
- Bridge Risk — Multichain operation requires cross-chain bridging, introducing additional failure points
- EURC Issuer Risk — Circle insolvency or regulatory action could affect EURC's backing, though MiCA's segregated reserve rules provide legal protection
- EURC Compliance Functions — EURC includes freeze/blacklist capabilities that Circle can execute, potentially restricting token access
- Yield Compression — Low borrowing demand for EURC can compress lending yields; Merkl/TOKE incentives may decrease or end
- EUR/USD Exchange Rate Risk — For non-EUR base currency users, EUR/USD fluctuations affect the dollar value of the position
- Protocol Maturity Risk — YO Protocol is relatively new (2024) with a small bug bounty ($10K cap) relative to TVL
Risk Analysis (3rd Parties)
Summary
yoEUR offers automated euro-denominated yield by deploying Circle's MiCA-compliant EURC across risk-evaluated DeFi protocols including Tokemak, Aave, and Fluid. The vault benefits from Exponential.fi's risk framework, daily rebalancing, and currently zero fees. YO Protocol has been audited by three firms (Hunter, Offbeat, Spearbit) with no critical findings. A yoUSD operational incident in January 2026 ($3.7M shortfall covered by treasury; yoEUR unaffected) across ~15,000 depositors. EURC provides strong regulatory backing under MiCA with 100% segregated euro reserves. However, YO Protocol is young (launched 2024, yoEUR Sep 2025), the vault TVL is small (~$1M), governance is fully centralized, and the $10K bug bounty cap is low. Euro DeFi markets have significantly less liquidity than USD equivalents, and a portion of yield relies on temporary Merkl/TOKE incentives. No major third-party risk ratings exist for YO Protocol.
See the YO Protocol security documentation: YO Protocol Documentation
YO Protocol Audits: Smart contracts audited by Hunter Security, Offbeat Security, and Spearbit. No critical or high-severity vulnerabilities were identified. Active bug bounty on Immunefi. On January 12, 2026, the yoUSD vault experienced a $3.7M operational shortfall due to a misconfigured automated harvest swap — no user funds were lost as YO's treasury covered the full amount. yoEUR was not affected.
Risk-Evaluated Allocation: YO uses Exponential.fi's risk ratings framework to evaluate all pools before allocation. The protocol monitors for price deviations and can automatically pause operations if significant anomalies are detected.
EURC Regulatory Backing: EURC is issued by Circle Internet Financial Europe SAS, licensed as an EMI under France's ACPR (Banque de France). Fully MiCA-compliant with 100% euro reserves in segregated EEA bank accounts, monthly third-party attestations, and legal redemption guarantees at par value.
Young Protocol: YO Protocol launched in 2024 and yoEUR launched in September 2025. The protocol has limited operational history and has not been tested through a major bear market or black swan event. Total protocol TVL is ~$56M with yoEUR specifically at ~$1M.
Centralized Operations: Vault allocation decisions are made by YO's algorithm and authorized operators, not by governance vote. Multisig controls with timelocks exist for vault operations, but the protocol is currently team-managed with no decentralized governance.
Small Bug Bounty / Scope Gap: The Immunefi bug bounty caps at $10,000 for critical smart contract vulnerabilities — relatively low compared to TVL and industry standards. As of January 2026, the yoEUR vault is not listed as an in-scope asset in the Immunefi program (only yoETH, yoBTC, and yoUSD are covered).
See the critical analysis: "YO Protocol's Unseen Dangers: Why Code Audits Aren't Enough"
No Major Third-Party Risk Ratings: YO Protocol currently lacks ratings from S&P, Credora, Bluechip, DeFiSafety, or similar agencies. Independent risk verification is limited.