> For the complete documentation index, see [llms.txt](https://docs.syndromics.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.syndromics.xyz/collateral-and-assets/usdg.md).

# Settlement asset: USDG

All principal, interest, fees and liquidation proceeds are denominated in **USDG**, the Paxos Global Dollar.

## Why USDG

| Reason                    | Detail                                                                                                                 |
| ------------------------- | ---------------------------------------------------------------------------------------------------------------------- |
| Native to the chain       | USDG is issued natively on Robinhood Chain rather than bridged, which removes bridge risk from the settlement path.    |
| Already the lending asset | Robinhood Earn, the chain's first lending product, uses USDG through Morpho. Liquidity and integrations already exist. |
| Regulatory footing        | USDG is regulated under MiCA in the EU, which matters for a protocol whose primary market is the EEA.                  |
| Idle-capital fit          | The whitelisted Morpho vault for [idle capital](/protocol/idle-capital.md) is a USDG vault.                            |

## Additional settlement assets

The protocol's market key includes `loanToken`, so a second settlement asset is a new, isolated market configuration rather than a change to existing loans. Candidates:

* **USDe** is present on Robinhood Chain.
* **USDC via CCTP**, once bridged liquidity on the chain is confirmed.

A new settlement asset will only be added once bridged liquidity is confirmed, the token has been reviewed for pause and blacklist behaviour, and a vault for idle capital exists. The addition goes through the timelock like any other parameter.

## Decimals and precision

USDG uses 6 decimals. Stock Tokens use 18. `OracleRouter` quotes prices in loan-token base units per whole collateral token, and `LoanSettlement` values collateral as `amount × price / 10^collateralDecimals`, so LTV and interest arithmetic stay in loan-token units. The invariant suite checks the arithmetic.


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