How does the CTP ratio impact collateral redemptions?

An over-collateralized loan may allow for a partial withdrawal, while an under-collateralized loan may be headed for a margin call.

The collateral-to-principal ratio (CTP)

The collateral-to-principal (CTP) ratio is the ratio of a loan’s collateral value to the principal amount. This is the inverse of loan-to-value (LTV) for a loan. The formula for CTP is:

CTP = (BTC/USD price × amount of BTC securing loan) ÷ principal balance

Higher CTP can allow for a partial redemption of collateral

For loans where the collateral-to-principal (CTP) ratio is greater than 300%, you can request a partial collateral redemption back to a CTP of 250%. 

How to withdraw bitcoin from an over-collateralized loan

  1. Log into your Unchained account.
  2. Navigate to your loan by clicking its name in the dashboard.
  3. If your CTP is greater than 300% and you have not requested a refund or received a margin call in the last 30 days, you will see the option to Withdraw collateral after clicking Collateral actions
    1. If you would like to transfer collateral to a vault, you can enter the vault’s deposit address as the redemption address.

Lower CTP can result in a margin call

For loans where the collateral-to-principal ratio is less than 150%, margin calls are issued. We recommend that loan clients review our margin call process.

Learn: Read more in our Ultimate guide to bitcoin-backed loans.