The allocator’s job is simple: put USDC where risk-adjusted Morpho yield is best, without stranding liquidity or concentrating the book too far. It never chases raw top APY alone. If yield conflicts with liquidity or safety, yield loses.

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Two layers

  1. The book - how much of product NAV sits in each Morpho sleeve, on Ethereum, and on each collateral. Those limits live on Hard rules and are live-checked on Transparency.
  2. Inside a sleeve — on diversified vaults, which Morpho markets receive weight under the same safety fences.
Diversified sleeves (Frontier, Blue-Chip, cbAssets) run this market-level ranking.
Mono sleeves (WHYPE, aHYPER) do not — their universe is fixed; ongoing ops are Sentinel only.

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The 10% liquidity rule

A Murmurr position must stay at or below 10% of a market’s available exit liquidity. That is how the book stays leaveable. If other suppliers withdraw first, we can still get out in full. The allocator will not size a market above that share. The Sentinel re-checks the live book and trims anything that drifts over the line. This is a public fence, not a hidden knob. Operating buffers and poll cadence stay in internal policy.

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What “good allocation” means

In order of priority:
  1. Stay liquid enough for LP redemptions (cash buffer + Morpho exit capacity).
  2. Stay diversified — no single market or thin pool should dominate the book.
  3. Prefer higher-quality collaterals when yields are similar.
  4. Maximize expected Morpho yield on the investable universe — after the fences above.
The vault claim stays USDC. Buffer restore should not depend on discretionary swaps of the user’s underlying.

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How ranking feels (without the recipe)

Inside a diversified sleeve, markets are scored for yield and quality, then filled under hard fences:
  • Markets that fail a quality floor are simply not investable.
  • Among investable names, better quality still ranks ahead at similar yield.
  • A position must not take more than 10% of a market’s exit liquidity.
  • Single-name and vault caps keep concentration in check.
  • When a market is overheating (very high utilization), the allocator will not add more — and the Sentinel may pull capital out.
Exact formulas, cooldowns, and provider wiring stay in internal ops policy. Publicly, the promise is the fence set — not the knob settings.

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Portfolio shape (conceptual)

Hard numbers for sleeve weights, Ethereum share, and per-collateral caps: Hard rules.

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What the allocator does not do

  • It does not promise a fixed APY.
  • It does not take LP keys or custody shares.
  • It does not freely swap user underlying out of USDC for “yield tourism”.
  • It does not ignore exit liquidity.
  • It does not maximize raw APY while ignoring collateral quality.
  • It does not replace the Sentinel under stress — emergency exits can run ahead of strategic rotations.

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Multichain

When the best risk-adjusted USDC Morpho book sits on another supported chain, capital can move there as native USDC via Circle CCTP — see Multichain & CCTP.