Quick Ratio (Acid-Test Ratio)
Quick Definition
A stringent liquidity measure that tests whether a company can pay its current obligations using only its most liquid assets, excluding inventory.
Key Takeaways
- Quick ratio = (Cash + Short-Term Investments + Receivables) / Current Liabilities
- More conservative than current ratio because it excludes inventory and prepaid expenses
- A ratio of 1.0+ generally indicates adequate liquidity; below 1.0 warrants scrutiny
- Particularly important for companies with slow-moving, perishable, or fashion-sensitive inventory
- Track the trend over time — a declining quick ratio may signal emerging liquidity problems
What Is Quick Ratio (Acid-Test Ratio)?
The quick ratio, also known as the acid-test ratio, measures a company's ability to pay its short-term obligations using only its most liquid assets — those that can be converted to cash quickly without significant loss in value. The formula is: Quick Ratio = (Cash + Short-Term Investments + Accounts Receivable) / Current Liabilities. Alternatively: (Current Assets - Inventory - Prepaid Expenses) / Current Liabilities.
The quick ratio is a more conservative liquidity test than the current ratio because it excludes inventory and prepaid expenses — assets that may take time to convert to cash or may need to be sold at a discount during financial distress. This distinction is especially important for companies with slow-moving or perishable inventory. A fashion retailer might have a healthy current ratio of 2.0 but a quick ratio of only 0.5 if most current assets are seasonal clothing inventory that could require heavy discounting.
A quick ratio of 1.0 or above generally indicates adequate liquidity — the company can cover all current liabilities with its most liquid assets. However, context matters enormously. Companies with predictable subscription revenue (like SaaS businesses) can operate safely with lower quick ratios because their cash inflows are reliable. Retailers and manufacturers typically need higher quick ratios because their revenue is more variable. Very high quick ratios (above 3.0) might indicate the company is holding too much cash and not investing efficiently in growth opportunities. Investors should track the quick ratio trend over time — a declining ratio over several quarters could signal deteriorating liquidity even if the absolute number still looks acceptable.
Quick Ratio (Acid-Test Ratio) Example
- 1A tech company has current assets of $500M (cash $200M, short-term investments $100M, receivables $80M, inventory $50M, prepaid $70M) and current liabilities of $300M. Current ratio = $500M/$300M = 1.67. Quick ratio = ($200M + $100M + $80M)/$300M = 1.27. Both ratios are healthy, and the small gap between them (1.67 vs 1.27) indicates low inventory risk.
- 2An auto parts distributor has current assets of $800M (inventory $500M, receivables $200M, cash $100M) and current liabilities of $400M. Current ratio = 2.0 (looks great). But quick ratio = ($100M + $200M)/$400M = 0.75 (concerning). If the company suddenly needs cash, it would have to liquidate slow-moving auto parts inventory at potentially steep discounts. An analyst flags this liquidity risk in their report.
Related Terms
Current Ratio
A liquidity ratio measuring a company's ability to pay short-term obligations by comparing current assets to current liabilities.
Cash Ratio
A liquidity ratio comparing a company's cash and cash equivalents to its current liabilities, measuring its ability to pay short-term obligations with cash alone.
Working Capital
The difference between a company's current assets and current liabilities, measuring short-term financial health and operational efficiency.
Liabilities
Financial obligations a company owes to outside parties, including debts, accounts payable, and other commitments that must be settled in the future.
Accounts Receivable (AR)
Money owed to a company by its customers for goods or services delivered on credit, recorded as a current asset on the balance sheet.
Revenue
The total amount of money a company earns from its business activities before any expenses are deducted, also called sales or top line.
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