How Does Alchemix V3 Work?

Yield|Risk C|8 mechanisms|6 interactions

Alchemix V3 offers 'self-repaying loans' — deposit yield-bearing assets, borrow up to 90% in synthetic alUSD or alETH, and the yield from your deposit automatically repays the loan over time. No liquidation risk from price moves. V3's core innovation is the MYT (Mix-Yield Token) — a diversified yield basket routing through Morpho V2 across 5+ strategies. Launched after a forced V2→V3 migration in early 2026. $36M TVL. ALCX token governance; pseudonymous team. One historic incident: 2021 alETH accounting bug ($6.5M, no user losses — protocol absorbed deficit).

TVL

$34M

Sector

Yield

Risk Grade

C

Value Grade

C

Core Mechanisms

Lending/Self-Repaying

Novel

No-liquidation self-repaying loans: yield from collateral automatically repays borrowed synthetic tokens

Alchemix pioneered self-repaying loans — users deposit yield-bearing collateral, borrow up to 90% LTV in alUSD or alETH, and the yield from deposits gradually repays the loan. No liquidation risk from price moves (only from yield source failure). V3 raised LTV from ~50% to 90% due to the more robust transmuter design.

Yield/Diversified-Basket

Novel

MYT (Mix-Yield Token): ERC-4626 tokenized vault basket routing through Morpho V2

V3's central innovation: replaces V2's isolated single-strategy vaults with an ERC-4626 basket that allocates across DAO-curated strategies (Yearn, Aave as conservative anchors; Euler, Tokemak, Lido wstETH as moderates; higher-yield strategies capped at 10%). All strategies route through Morpho V2, creating a systemic Morpho dependency.

Stablecoin/Bond-Market-Transmuter

Novel

Fixed-duration bond market: lock alAssets for fixed period, receive guaranteed 1:1 redemption at maturity

V3's transmuter redesign: users lock alUSD or alETH for a fixed duration and receive guaranteed 1:1 redemption at maturity (vs. V2's gradual conversion queue). Creates a deterministic arbitrage floor: if alUSD trades at $0.98 with a 90-day lock, implied APY is ~8%, attracting capital to restore peg. Locked collateral continues earning yield during the lock period.

Stablecoin/AMO

Elixir AMO: algorithmic market operations deploying transmuter excess into Curve/Convex pools

Secondary peg maintenance: Elixir AMO deploys excess transmuter funds into Curve/Convex alUSD/alETH liquidity pools, rebalancing supply. Earns CRV/CVX as protocol revenue. Standard AMO design (similar to Frax's AMO system). Curve/Convex dependency is an indirect risk.

Oracle/Single-Source

Chronicle oracle for all collateral pricing across V3 positions

All V3 collateral valuations use Chronicle oracles. Single oracle source dependency — Chronicle failure or manipulation affects all positions simultaneously. Chronicle is newer and less battle-tested than Chainlink.

Cross-Chain/OFT

LayerZero OFT for xalUSD and xalETH on Optimism and Arbitrum

L2 versions (xalUSD, xalETH) are LayerZero Omnichain Fungible Tokens. LayerZero DVN compromise could enable unauthorized minting. Protocol uses 2-of-3 DVN threshold. L2 xalAssets are explicitly described as 'equal or lesser value' than mainnet alAssets — acknowledged structural subordination.

Governance/DAO

ALCX token governance; pseudonymous team; perpetual emissions at 2,200 ALCX/week

ALCX token holders govern protocol parameters. Pseudonymous founder (Scoopy Trooples). No direct fee sharing to ALCX holders — protocol revenue goes to DAO treasury. Perpetual 2,200 ALCX/week emissions with no end date create ongoing sell pressure. Contributors receive 20% of emissions via exclusive staking pool.

Lending/Temporal-Earmarking

Earmarking weight: longer-held positions accumulate greater weight preventing rapid repay-borrow cycling

V3 innovation to prevent gaming: users accumulate earmarking weight proportional to how long they hold positions. Rapidly repaying and re-borrowing resets accumulated weight, reducing protocol gaming incentives. Limits capital efficiency for arbitrageurs.

How the Pieces Interact

MYT yield basketMorpho V2 systemic dependencyCritical

All MYT strategies route through Morpho V2. A critical Morpho exploit drains yield-generating collateral across all V3 positions simultaneously — the exact single-point-of-failure that V2's isolated vaults were designed to prevent. V3 traded isolation for yield diversification but introduced a new base-layer systemic risk.

90% LTV loansalAsset structural depegHigh

alETH persistently trades 2-5% below ETH. At 90% LTV with a 4% alETH depeg, the synthetic token received is already worth ~$0.864 per $1 of ETH collateral value. If the depeg widens (e.g., to 10-15% in a liquidity crisis), debt-to-real-value approaches 100% while the protocol has no liquidation mechanism to force deleveraging.

LayerZero OFTxalAsset mintingHigh

A LayerZero DVN (Decentralized Verifier Network) compromise could enable unauthorized minting of xalUSD or xalETH on L2s. Unbacked synthetic supply would flood Curve pools, destabilizing the peg for all alAsset holders globally. The 2-of-3 DVN threshold mitigates but doesn't eliminate this risk.

Chronicle oracleCollateral valuationMedium

Chronicle oracle failure or manipulation affects all V3 collateral valuations simultaneously. Unlike Chainlink (which has years of battle-testing), Chronicle is newer and has less proven oracle security track record at this scale.

Fixed-duration transmuter locksYield compressionMedium

Users locked in fixed-duration transmuter redemptions cannot exit early if market conditions deteriorate. If underlying yield drops significantly mid-lock, the arb incentive that restored peg disappears — but locked alAsset holders cannot exit until maturity, trapping peg pressure.

What Could Go Wrong

  1. Alchemix V3's MYT (Mix-Yield Token) routes all collateral yield through Morpho V2 as a base layer. A critical Morpho V2 exploit or systemic failure would drain the yield-generating collateral backing all V3 positions simultaneously — a single systemic dependency that V2's isolated vaults avoided. This is the protocol's highest-severity risk.
  2. alETH has persistently traded at a 2-5% structural discount to ETH (Q1 2026: ~4.3% discount) and alUSD at ~2% below par. At V3's 90% LTV, even a modest alAsset peg weakening combined with yield compression could leave positions where debt exceeds practical collateral value — with no liquidation mechanism to force resolution. The protocol relies entirely on transmuter and AMO operations to restore peg, and both are rate-limited.
  3. Self-repaying loans require sustained underlying yield. At current compressed DeFi yields (Aave USDC at 2-4%), a 90% LTV alUSD loan has an implied repayment horizon of 50+ years. Users who borrowed expecting multi-year repayment face permanent capital lock-up if yields remain suppressed or compress further — creating a fragile trapped-capital dynamic at scale.

Morpho V2 Exploit — All MYT Collateral Drained

Tail

Trigger: A critical vulnerability in Morpho V2's smart contracts is exploited, draining the collateral deposited through Alchemix V3's MYT yield basket.

  1. 1.Attacker exploits a Morpho V2 vulnerability (e.g., reentrancy, oracle manipulation, or accounting flaw) that allows unauthorized withdrawal of deposits from Morpho markets underlying the MYT basket. MYT collateral — which backs all V3 alUSD and alETH loans — is partially or fully drained. The alchemist vault becomes undercollateralized.
  2. 2.Alchemix's self-repaying mechanism relies on yield from MYT collateral. With collateral drained, yield generation stops permanently. Loans can no longer self-repay. Existing alUSD and alETH in circulation have no path to 1:1 redemption. The transmuter bond market collapses as no new collateral backs redemption promises.
  3. 3.alUSD and alETH lose their transmuter floor and trade as purely speculative assets. Curve pool liquidity drains as holders sell, destroying the AMO's peg support capacity. Both alAssets collapse toward zero. All borrowers effectively lose their collateral (which was drained in Morpho) and receive no outstanding loan relief — net loss of collateral with loan balance accruing in dead alAssets.
  4. 4.ALCX token collapses to near zero as the protocol's value proposition is destroyed. Governance has no treasury resources to compensate depositors (no insurance fund). Total loss for alUSD/alETH holders and MYT depositors with no recovery mechanism. Protocol is permanently impaired.

Risk Profile at a Glance

Mechanism Novelty9/15
Interaction Severity13/20
Oracle Surface6/10
Documentation Gaps2/10
Track Record5/15
Scale Exposure3/10
Regulatory Risk4/10
Vitality Risk6/10
C

Overall: C (48/100)

Lower score = safer

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