• The guard interval ratio (DIR) seeks to calculate how many days a company can operate relying only on liquid assets.

  • Current assets are compared with daily expenses to determine the guard interval factor.
  • The guard interval ratio can be viewed over time to determine whether a company’s liquidity buffer is increasing or decreasing to cover its costs.
  • Many analysts find the guard interval ratio (DIR) more useful than the quick ratio or current ratio because it compares assets to actual expenses rather than liabilities.
  • While a higher DIR number is preferable, there is no specific number that indicates what is right or best to aim for.