In finance the Aci-test or quick ratio or liquid 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, marketable securities, and some accounts receivable. This ratio indicates a firm's capacity to maintain operations as usual with current cash or near cash reserves in bad periods. As such, this ratio implies a liquidation approach and does not recognize the revolving nature of current assets and liabilities. The ratio compares a company's cash and short-term investments to the financial liabilities the company is expected to incur within a year's time.