# Stablecoins & Savings ## Stablecoins Rocky stablecoins are decentralized stable currencies issued by the protocol. Their issuance is handled through minting modules, such as the Rocketizer Module, where users deposit an overcollateralized basket of assets (such as ETH, BTC, or other stablecoins) to mint new tokens. Each stablecoin ([USDr](/products/stablecoins-and-savings/usdr-and-susdr), etc.) can be configured independently with its own parameters, including the types of assets accepted as collateral, the fees applied, and the exposure limits. To ensure price stability, the protocol automatically adjusts minting or burning fees whenever the token deviates from its reference currency. In practice, these stablecoins form the core of the Rocky system and serve as the foundation for all other ecosystem products. ## Savings The Rocky Savings product allows Rocky stablecoin holders to earn a native yield based on the returns generated by the protocol on the assets backing the stablecoin. It does not introduce additional composability risk, and there are no extra trust assumptions between owning a Rocky stablecoin and its staked version. The yield rate paid by the Savings Module on a stablecoin depends on the return over assets the protocol is generating for that asset. Assuming all stablecoins are in the Savings contracts, and assuming no cut taken by the protocol, the protocol could pay up to this return over assets to all stablecoin holders.