Quick ratio vs current ratio
Same denominator, different numerators. The gap between them tells you how much of a firm's apparent liquidity is locked up in inventory and prepaid expenses.
The current ratio includes all current assets in the numerator (cash, marketable securities, accounts receivable, inventory, prepaid expenses). The quick ratio strips out inventory and prepaid expenses to focus on near-cash assets. A wide gap between the two (for example current ratio 2.5 versus quick ratio 0.4) means inventory dominates current assets, which is normal for retailers but a red flag for service firms.
Verified June 2026. Source: Corporate Finance Institute, Quick Ratio Definition. Cross-referenced with Subramanyam 11th Ed. Ch. 10 (pp. 499-505).
Side-by-side formulas
(Cash + Marketable Securities + Accounts Receivable) / Current Liabilities
Strips inventory and prepaid expenses. Focus on assets convertible to cash within ~90 days.
Total Current Assets / Current Liabilities
Includes inventory and prepaid expenses. Broader liquidity measure but sector-sensitive.
Worked comparison: software vs retail
Two illustrative firms (Acme SaaS Co. and Acme Retail Co.) with the same $100,000 of current liabilities. Numbers chosen to demonstrate methodology, not drawn from real companies.
| Line item | Acme SaaS Co. | Acme Retail Co. |
|---|---|---|
| Cash | $80,000 | $10,000 |
| Marketable securities | $30,000 | $0 |
| Accounts receivable | $45,000 | $5,000 |
| Inventory | $0 | $185,000 |
| Prepaid expenses | $5,000 | $5,000 |
| Current liabilities | $100,000 | $100,000 |
| Quick ratio | 1.55 | 0.15 |
| Current ratio | 1.60 | 2.05 |
| Gap | 0.05 | 1.90 |
Illustrative example, not a real company. Numbers chosen to demonstrate methodology.
How to read the gap
- Gap below 0.2. Current assets are mostly cash and receivables. Common for software, services, and asset-light tech.
- Gap between 0.5 and 1.5. Inventory is a material share of current assets. Normal for manufacturers, distributors, and most industrial firms.
- Gap above 1.5. Inventory dominates the balance sheet. Healthy for retailers and wholesalers but worth verifying that inventory is fresh and saleable.
Quick ratio vs cash ratio
Strip out receivables too. What is left, and when to use it.
Quick ratio vs working capital
Absolute dollars vs ratios. When each is more useful.