Quick Ratio or Acid-Test Ratio is an important Financial ratios. OR The Acid-test or quick ratio measures the ability of a company to use its "near cash" or quick assets to immediately extinguish its current liabilities. Quick assets include those current assets that presumably can be quickly converted to cash at close to their book values. Such items are cash, stock investments, and accounts receivable. This ratio implies a liquidation approach and does not recognize the revolving nature of current assets and liabilities.