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Idle Cash

Tilt vaults support partial allocation — target weights don’t need to sum to 100%. The unallocated portion stays as idle tiltUSDC in the vault.

How It Works

When creating or managing a fund, you can set target weights that sum to any value between 1% and 100%:
Target AllocationIdle Cash
NVDA: 30%, AAPL: 25%, TSLA: 20% = 75%25% idle
ETH: 50% = 50%50% idle
MSFT: 100% = 100%0% idle
The idle cash portion:
  • Remains as tiltUSDC in the vault
  • Is included in totalAssets() for NAV calculation
  • Earns no yield (it’s a stablecoin)
  • Acts as a cash buffer for withdrawals

Why Use Idle Cash

Risk management — Holding a cash reserve reduces portfolio volatility. A fund with 70% equity exposure and 30% cash has natural downside protection. Withdrawal efficiency — When investors withdraw, the vault first uses idle tiltUSDC before liquidating positions. This means smaller withdrawals can be served without any trades, reducing slippage and gas costs. Tactical allocation — A fund manager might reduce exposure ahead of uncertain events (earnings, macro data) by lowering total allocation, then increasing it once clarity returns. Dollar-cost averaging — A fund can start with a high cash position and gradually deploy capital by increasing weights over time.

Technical Details

When allocateIdleAssets() is called, the vault allocates from the unallocated balance:
allocatable = tiltUSDC balance (unallocated)

For each target token:
  buyAmount = allocatable × (tokenWeight / 10000)
The denominator is always 10,000 (100% in basis points), not the sum of weights. This means a vault with 75% total allocation will deploy exactly 75% of idle capital and keep 25% as cash.
Target weights must sum to between 1 and 10,000 basis points (0.01% to 100%). A weight sum of 0 is invalid.