> For the complete documentation index, see [llms.txt](https://docs.overnight.fi/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.overnight.fi/core-concept/overnight-tokens+.md).
# Overnight Tokens+
**Overnight Tokens+** are tokens that represent **USD**, fully collateralized with yield-generating assets. These tokens are **pegged** to the price of the asset they represent and **automatically accrue rewards** by increasing the number of Tokens+ in your wallet.
USD+
Overnight offers several **Tokens+**, each fully collateralized with yield-generating assets and pegged to the value of the asset they represent. These include:
* **USD+**
* **xUSD**
* **USDT+**
These tokens automatically accrue rewards by increasing the balance in users' wallets, providing a seamless way to earn yield while maintaining the stability of the underlying asset.
The generated yields are distributed to Tokens+ holders via a [**rebasing mechanism**](/core-concept/yield-mechanism-rebase.md).
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