T+0 Instant Rebalancing

This is the core innovation of Foundation. We solve the problem of Rebalancing Drag—the time and money lost when moving capital between yield silos.

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The Problem: Traditional Rebalancing

In traditional DeFi, moving $1M from an RWA Vault to a delta-neutral strategy is painful:

Step	Action	Time	Cost
1	Unstake from source	2-7 days	Gas
2	Withdraw to wallet	—	Gas
3	Swap assets on DEX	—	Slippage + Gas
4	Re-deposit to destination	—	Gas

Result: 5+ days of lost yield and high operational friction.

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The Solution: Atomic Share Swaps

Foundation allows users to swap strategy shares (e.g., ApolloUSD → OrdUSD) in a single atomic transaction.

Metric	Traditional	Foundation
Settlement Time	2-7 days	1 block (T+0)
Slippage	0.1-2%	0%
Gas Transactions	4+	1
Lost Yield	5+ days	None

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How It Works: The Rebalance Router

We utilize the Rebalance Router smart contract to perform "Virtual Settlement" using USD'.

Step-by-Step Flow

Step	Action	Description
1	User calls swapStrategies()	Specify source shares and minimum output
2	Router redeems source shares	Burns ApolloUSD shares, receives USD' credit
3	Vault updates ledger	Internal accounting update (no token transfer)
4	Router deposits to destination	Uses USD' credit to mint OrdUSD shares
5	User receives new shares	OrdUSD shares minted to user wallet

All steps execute atomically in a single transaction.

The Key Insight

Virtual Settlement: Instead of physically moving collateral, the Vault simply updates its internal ledger—crediting one strategy and debiting another. The collateral often stays in the same custody, making the "swap" a low-cost accounting operation.

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Liquidity Buffers

To support T+0 swaps on illiquid underlying assets (like RWAs with multi-day settlement), each strategy maintains a Liquidity Buffer.

Component	Description
Buffer Size	5-10% of strategy TVL in liquid stablecoins
Swap Source	When you swap out, you're paid from the buffer
Replenishment	Protocol queues an RWA redemption to replenish the buffer over standard settlement timeline

This design ensures:

• Users get instant liquidity — No waiting for RWA settlement

• Strategies stay fully invested — Only a small buffer is held idle

• System remains solvent — Buffer replenishment is automatic and continuous

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Use Cases

Scenario	Traditional Approach	With Foundation
Risk-off during volatility	Wait 7 days to exit RWA position	Instant swap to PrimeUSD
Capitalize on high funding rates	Complex multi-step migration	One-click swap to OrdUSD
Rebalance portfolio allocation	Days of operational overhead	Atomic multi-strategy rebalance