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The initial execution model uses direct swaps from each user’s smart account. MyStacks coordinates the transaction for that account. The assets and swap proceeds remain associated with the user portfolio.

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From a portfolio decision to a trade

1

Prepare the rebalance

Activation starts the initial allocation from the manager’s saved weights. Later rebalances use the saved allocation at each applicable schedule boundary. MyStacks determines the trades needed for each user’s holdings.
2

Request a swap quote

The routing layer obtains a quote through a supported swap aggregator. The quote supplies the transaction data needed to perform the swap.
3

Prepare the account calls

MyStacks prepares the approval and swap calls for the user’s account. The execution must fit the account’s delegated permission.
4

Sign and submit the execution

KMS signs the request using the session signing key. The MyStacks execution layer coordinates the authorised account calls. The selected execution path supports sponsored transactions.
5

Observe the result

The execution result and onchain receipts show whether the trade settled. A successful quote or submission alone does not mean the portfolio has changed.

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Routing and execution have different jobs

The routing layer obtains quotes through supported swap aggregators. The execution layer carries out the authorised trades in each user’s account.

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Trading fees

Each portfolio swap charges 5 basis points for LI.FI and 5 basis points for MyStacks. Together, that is 10 basis points (0.10%) of the amount traded before fees. The same trading fees apply to asset sales for a USDG withdrawal. There is no extra deposit or withdrawal fee. Provider charges, network costs, and price slippage are separate.

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Execution scope

The initial scope is individual account execution. Shared settlement and internal trade netting are outside that scope. This draft makes no guarantee that an entire portfolio rebalance is atomic.