Fyde Contract

The Fyde contract serves as the core contract of the Fyde protocol. It handles the logic for depositing, withdrawing, and swapping assets within the protocol.

Fyde operates as a diversified vault, accepting certain assets, each with a specific target concentration representing the asset’s desired weight in the protocol relative to the Total Value Locked (TVL) in USD. Target concentrations represent the ideal weight of a given asset in the protocol as part of an overarching portfolio management strategy. Users can deposit, withdraw, and swaps these assets in the Fyde protocol.


Approved assets can be deposited by users, and upon deposit, $TRSY is minted to the user. Minted $TRSY represents a share of the vault that is proportional to the deposited amount denominated in USD.

For instance, if a user deposits 100 TokenA, equivalent to 100k USD, and the TVL is 1 million USD with 500k $TRSY in circulation, the user will receive 50k $TRSY.


Users can withdraw assets by burning their $TRSY tokens. The withdrawal value is computed using mechanisms akin to those used in depositing.

For example, if a user holds 50k $TRSY and the TVL is 1 million USD with 500k $TRSY in circulation, the user can withdraw 10% of the index vault, equivalent to 100k USD.


Every token in the vault is associated with an ideal concentration, or weight, which is set in order to target specific risk metrics corresponding with each token. Vault actions such as deposits, withdrawals, and swaps can begin to deviate asset concentrations from their target, and as a result, fundamentally change the risk profile of the overall vault. In order to minimize the impact of actions that can negatively impact the health of the vault, slippage will occur on the trade.

For instance, deposits altering the concentration towards an overweight position will incur slippage, as will withdrawals from an underweight asset. On the other hand, withdrawals of overweight tokens and deposit of underweight ones will be completely slippage-free.

Slippage on Deposits

Slippage on Withdrawals

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