What Are Liquidity Ratios?
Liquidity ratios are an important class of financial metrics used to determine a debtor's ability to pay off current debt obligations without raising external capital. Liquidity ratios measure a company's ability to pay debt obligations and its margin of safety through the calculation of metrics including the current ratio, quick ratio, and operating cash flow ratio.
Key Takeaways
 Liquidity ratios are an important class of financial metrics used to determine a debtor's ability to pay off current debt obligations without raising external capital.
 Common liquidity ratios include the quick ratio, current ratio, and days sales outstanding.
 Liquidity ratios determine a company's ability to cover shortterm obligations and cash flows, while solvency ratios are concerned with a longerterm ability to pay ongoing debts.
Understanding Liquidity Ratios
Liquidity is the ability to convert assets into cash quickly and cheaply. Liquidity ratios are most useful when they are used in comparative form. This analysis may be internalor external.
For example, internal analysis regarding liquidity ratios involves using multiple accounting periods that are reported using the same accounting methods. Comparing previous periods to current operations allows analysts to track changes in the business. In general, a higher liquidity ratio showsa company is more liquid and has better coverage of outstanding debts.
Alternatively, external analysis involves comparing the liquidity ratios of one company to another or an entire industry. This information is useful to compare the company's strategic positioning to its competitors when establishing benchmark goals. Liquidity ratio analysis may not be as effective when looking across industriesas various businesses require different financing structures. Liquidity ratio analysis is less effective for comparing businesses of different sizes in different geographical locations.
With liquidity ratios, current liabilitiesare most often compared to liquid assets to evaluate the ability to cover shortterm debts and obligations in case of an emergency.
Types of Liquidity Ratios
The Current Ratio
Thecurrent ratiomeasures a company's ability to pay off its current liabilities (payable within one year) with its total current assets such as cash, accounts receivable, and inventories. The higher the ratio, the better the company's liquidity position:
$\text{Current Ratio} = \frac{\text{Current Assets}}{\text{Current Liabilities}}$CurrentRatio=CurrentLiabilitiesCurrentAssets
The Quick Ratio
The quick ratio measures a company's ability to meet its shortterm obligations with its most liquid assetsand therefore excludes inventories from its current assets. It is also known as the acidtest ratio:
$\begin{aligned} &\text{Quick ratio} = \frac{C + MS + AR}{CL} \\ &\textbf{where:}\\ &C=\text{cash \& cash equivalents}\\ &MS=\text{marketable securities}\\ &AR=\text{accounts receivable}\\ &CL=\text{current liabilities}\\ \end{aligned}$Quickratio=CLC+MS+ARwhere:C=cash&cashequivalentsMS=marketablesecuritiesAR=accountsreceivableCL=currentliabilities
Another way to express this is:
$\text{Quick ratio} = \frac{(\text{Current assets  inventory  prepaid expenses})}{\text{Current liabilities}}$Quickratio=Currentliabilities(Currentassetsinventoryprepaidexpenses)
Days Sales Outstanding (DSO)
Days sales outstanding (DSO)refers to the average number of days it takes a company to collect payment after it makes a sale. A high DSO means that a company is taking unduly long to collect payment and is tying up capital in receivables. DSOs are generally calculated on a quarterly or annual basis:
$\text{DSO} = \frac{\text{Average accounts receivable}}{\text{Revenue per day}}$DSO=RevenueperdayAverageaccountsreceivable
Special Considerations
Aliquidity crisiscan arise even at healthy companies if circ*mstances arise that make it difficult for them to meet shortterm obligations such as repaying their loans and paying their employees. The best example of such a farreaching liquidity catastrophe in recent memory is the global credit crunch of 200709. Commercial paper—shortterm debt that is issued by large companies to finance current assets and pay off current liabilities—played a central role in this financial crisis.
A neartotal freeze in the $2 trillion U.S. commercial paper market made it exceedingly difficult for even the most solvent companies to raise shortterm funds at that time and hastened the demise of giant corporations such as Lehman Brothers and General Motors (GM).
But unless the financial system is in a credit crunch, a companyspecific liquidity crisis can be resolved relatively easily with a liquidity injection (as long as the company is solvent). This is because the company can pledge some assets if it is required to raise cash to tide over the liquidity squeeze. This route may not be available for a company that is technically insolvent because a liquidity crisis would exacerbate its financial situation and force it into bankruptcy.
Solvency Ratios vs. Liquidity Ratios
In contrast to liquidity ratios,solvencyratios measure a company's ability to meet its total financial obligations and longterm debts. Solvency relates to a company's overall ability to pay debt obligations and continue business operations, while liquidity focuses more on current or shortterm financial accounts.
A company must have more total assets than total liabilities to be solvent; a company must have more current assets than current liabilities to beliquid. Although solvency does not relate directly to liquidity, liquidity ratios present a preliminary expectation regarding a company's solvency.
The solvency ratio is calculated by dividing a company'snet incomeanddepreciationby its shortterm andlongterm liabilities. This indicates whether a company's net income can cover itstotal liabilities. Generally, a company with a higher solvency ratio is considered to be a more favorable investment.
Examples Using Liquidity Ratios
Let's use a couple of these liquidity ratios to demonstrate their effectiveness in assessing a company's financial condition.
Consider two hypothetical companies—Liquids Inc. and Solvents Co.—with the following assets and liabilities on their balance sheets (figures in millions of dollars).We assume that both companies operate in the same manufacturing sector (i.e., industrial glues and solvents).
Balance Sheets for Liquids Inc. and Solvents Co.  

(in millions of dollars)  Liquids Inc.  Solvents Co. 
Cash & Cash Equivalents  $5  $1 
Marketable Securities  $5  $2 
Accounts Receivable  $10  $2 
Inventories  $10  $5 
Current Assets (a)  $30  $10 
Plant and Equipment (b)  $25  $65 
Intangible Assets (c)  $20  $0 
Total Assets (a + b + c)  $75  $75 
Current Liabilities* (d)  $10  $25 
LongTerm Debt (e)  $50  $10 
Total Liabilities (d + e)  $60  $35 
Shareholders' Equity  $15  $40 
Note that in our example, we will assume that current liabilities only consist ofaccounts payable and other liabilities, with no shortterm debt.
Liquids, Inc.
 Current ratio=$30 / $10 = 3.0
 Quick ratio = ($30 – $10) / $10 = 2.0
 Debt to equity = $50 / $15 = 3.33
 Debt to assets = $50 / $75 = 0.67
Solvents, Co.
 Current ratio=$10 / $25 = 0.40
 Quick ratio = ($10 – $5) / $25 = 0.20
 Debt to equity = $10 / $40 = 0.25
 Debt to assets = $10 / $75 = 0.13
We can draw several conclusions about the financial condition of these two companies from these ratios.
Liquids, Inc. has a high degree of liquidity. Based on its current ratio, it has $3 of current assets for every dollar of current liabilities. Its quick ratio points to adequate liquidity even after excluding inventories, with $2 in assets that can be converted rapidly to cash for every dollar of current liabilities.
However, financial leverage based on its solvency ratios appears quite high. Debt exceeds equity by more than three times, while twothirds of assets have been financed by debt. Note as well that close to half of noncurrent assets consist ofintangible assets (such as goodwill and patents). As a result, the ratio of debt to tangible assets—calculated as ($50/$55)—is 0.91, which means that over 90% of tangible assets (plant, equipment, and inventories, etc.) have been financed by borrowing. To summarize, Liquids, Inc. has a comfortable liquidity position, but it has a dangerously high degree of leverage.
Solvents, Co. is in a different position. The company's current ratio of 0.4 indicates aninadequate degree of liquidity, with only $0.40 of current assets available to cover every $1 of current liabilities. The quick ratio suggests an even more dire liquidity position, with only $0.20 of liquid assets for every $1 of current liabilities.
Financial leverage, however, appears to be at comfortable levels, with debt at only 25% of equity and only 13% of assets financed by debt. Even better, the company's asset base consists wholly of tangible assets, which means that Solvents, Co.'s ratio of debt to tangible assets is about oneseventh that of Liquids, Inc. (approximately 13% vs. 91%). Overall, Solvents, Co. is in a dangerous liquidity situation, but it has a comfortable debt position.
What Is Liquidity and Why Is It Important for Firms?
Liquidity refers to how easily or efficiently cash can be obtained to pay bills and other shortterm obligations. Assets that can be readily sold, like stocks and bonds, are also considered to be liquid (although cash is, of course, the most liquid asset of all). Businesses need enough liquidity on hand to cover their bills and obligations so that they can pay vendors, keep up with payroll, and keep their operations going dayin and day out.
How Does Liquidity Differ From Solvency?
Liquidity refers to the ability to cover shortterm obligations. Solvency, on the other hand, is a firm's ability to pay longterm obligations. For a firm, this will often include being able to repay interest and principal on debts (such as bonds) or longterm leases.
Why Are There Several Liquidity Ratios?
Fundamentally, all liquidity ratios measure a firm's ability to cover shortterm obligations by dividing current assets by current liabilities (CL). The cash ratio looks at only the cash on hand divided by CL, while the quick ratio adds in cash equivalents (like money market holdings) as well as marketable securities and accounts receivable. The current ratio includes all current assets.
What Happens If Ratios Show a Firm Is Not Liquid?
In this case, aliquidity crisiscan arise even at healthy companies—if circ*mstances arise that make it difficult to meet shortterm obligations, such as repaying their loans and paying their employees or suppliers. One example of a farreaching liquidity crisis from recent history is the global credit crunch of 200709, where many companies found themselves unable to secure shortterm financing to pay their immediate obligations.
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Federal Reserve Bank of New York. "The Federal Reserve’s Commercial Paper Funding Facility," Pages 25–29.
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I'm an enthusiast with a deep understanding of financial metrics and ratios, particularly liquidity ratios. Over the years, I've honed my expertise through practical application in analyzing various companies' financial statements and conducting comparative assessments of their liquidity positions.
Now, let's delve into the concepts used in the article you provided on liquidity ratios:

Liquidity Ratios: These are essential financial metrics used to evaluate a debtor's ability to settle current debt obligations without relying on external capital. Liquidity ratios encompass several metrics, including the current ratio, quick ratio, and operating cash flow ratio.

Current Ratio: This ratio measures a company's capability to pay off its current liabilities using its total current assets. The formula for the current ratio is:
[\text{Current Ratio} = \frac{\text{Current Assets}}{\text{Current Liabilities}}]

Quick Ratio (AcidTest Ratio): The quick ratio evaluates a company's capacity to meet shortterm obligations using its most liquid assets while excluding inventories. It's calculated as:
[\text{Quick Ratio} = \frac{C + MS + AR}{CL}]
Where:
 (C) = Cash & Cash Equivalents
 (MS) = Marketable Securities
 (AR) = Accounts Receivable
 (CL) = Current Liabilities

Days Sales Outstanding (DSO): This metric indicates the average number of days a company takes to collect payment after making a sale. It's computed as:
[\text{DSO} = \frac{\text{Average Accounts Receivable}}{\text{Revenue per day}}]

Liquidity Crisis: It refers to a situation where a company struggles to meet shortterm obligations, such as loan repayments and payroll. The global credit crunch of 200709 is cited as an example of a widespread liquidity crisis.

Solvency Ratios: Unlike liquidity ratios, solvency ratios assess a company's ability to meet both shortterm and longterm financial obligations. Solvency ratios are indicative of a company's overall financial health and viability.

Comparison Between Companies: The article illustrates how liquidity ratios can be used to compare the financial conditions of two hypothetical companies, Liquids Inc. and Solvents Co., based on their balance sheet data.
Understanding liquidity ratios is crucial for assessing a company's financial stability and its ability to fulfill shortterm obligations. These ratios provide valuable insights into a company's liquidity position, which is vital for investors, creditors, and other stakeholders in making informed decisions.