Stablecoin minting interface showing collateralization ratio

Stablecoin minting interface showing collateralization ratio on a DeFi platform, crucial for understanding risks and leverage.

About this subject

In decentralized finance (DeFi), minting stablecoins involves users creating tokens pegged to a stable asset, like the dollar, by depositing cryptocurrency collateral. The collateralization ratio is a key metric: it shows the proportion between the collateral value and the stablecoin amount minted. For example, in the MakerDAO protocol, to mint DAI, users must deposit ETH with a minimum collateralization of 150%, meaning for every 100 DAI, at least 150 USD worth of ETH is required. This ratio protects the system from volatility: if the collateral value drops below the threshold, the position may be liquidated.

The minting interface typically displays real-time collateral asset price, collateral value, minted amount, and current collateralization ratio. Many platforms also show the stability fee (interest rate) and debt limits. Over-collateralization is central to decentralized stablecoins, differing from centralized ones like USDC, which are backed by fiat reserves.

In Brazil, stablecoin usage has grown for asset protection and international remittances. Platforms like MakerDAO, Compound, and Aave offer stablecoin minting, each with distinct collateralization parameters. The ratio may vary by asset: volatile assets require higher collateralization. Understanding this ratio is vital to avoid liquidations, which occur when collateral depreciates below the minimum requirement.

A curiosity: in 2020, the MakerDAO protocol reduced ETH's minimum collateralization ratio from 150% to 130% during the COVID-19 crisis, sparking debate on systemic risks. This adjustment shows how collateralization parameters are dynamic and market-influenced.

Frequently Asked Questions

What is the collateralization ratio in stablecoins?

It is the ratio between the value of the deposited collateral and the value of the minted stablecoin. For example, 150% means for every 100 units of stablecoin, there are 150 units of collateral value.

What happens if the collateralization ratio falls below the minimum?

The position may be liquidated, meaning the collateral is sold to cover the stablecoin value. The user loses part or all of the collateral.

Why do decentralized stablecoins require over-collateralization?

To protect the system from the volatility of collateral assets. If the collateral value fluctuates, the extra collateral ensures the stablecoin maintains its peg.