Cash Flow Ratios for Performance Evaluation (CFA Level 1): Rationale for Cash Flow Analysis, Limitations of Accrual Accounting, and Why Cash Flow Ratios Matter. Key definitions, formulas, and exam tips.
When folks talk about a company’s performance, they often point to net income or earnings per share. But, um, let’s be honest: cash is usually the real star of the show. After all, you can’t pay salaries or suppliers with “net income.” That’s why cash flow ratios are so important in evaluating an organization’s liquidity, solvency, and overall financial health.
In this section, we’ll go beyond the income statement spotlight. We’ll look instead at how well a firm generates and manages cash. If earnings are the “story” told by the income statement, then cash flows provide the behind-the-scenes reality check. And if there’s a big discrepancy between a company’s reported profits and its actual cash on hand, it’s sometimes a sign that something fishy might be going on—like overly aggressive revenue recognition or underreported expenses.
To illustrate the major points, we’ll discuss specific cash flow ratios such as Operating Cash Flow Ratio, Cash Return on Assets (CFROA), and Cash Coverage Ratios. We’ll also glance at the potential red flags that an analyst should watch out for, especially when these ratios don’t align with accrual-based performance indicators. By the end, you’ll know how to interpret these cash-based metrics, what they reveal about ongoing financial health, and how to use them alongside more traditional measures like net income, return on assets, or the infamous “EBITDA.”
Accrual accounting is a great invention. It helps match revenues to the expenses that generated them, which yields a smooth (sometimes artificially smooth!) pattern of earnings over time. However, accruals can mask short-term liquidity problems or manipulate the timing of revenue and expense recognition.
From a CFA perspective, especially at advanced levels, recognizing that net income might not reflect the true economic performance of a business is crucial. If a firm extends credit terms aggressively, net income might look amazing, but the cash receipts might arrive way too late—or not at all. Conversely, a large chunk of current liabilities might quickly deplete actual liquidity, even if the firm is still technically profitable. That’s why we look at cash flow. Cash doesn’t hide the same way accruals do.
Cash flow ratios move the analytical spotlight away from purely profit-based metrics toward understanding financial flexibility and day-to-day viability. They help us figure out whether the firm can:
Cash flow metrics effectively reveal how management deals with real money. While net income could be “engineered” by adjusting estimates or exploiting gaps in revenue-recognition rules, cash is harder to fake consistently over the long term (although sophisticated manipulations like stretching payables, factoring receivables, or misclassifying items can occur—just more easily detected if you know what to look for).
The Operating Cash Flow Ratio (sometimes called the Operating Cash Flow to Current Liabilities Ratio) is a straightforward measure:
This ratio tells you how readily the firm’s core business operations generate enough cash to cover near-term obligations. If it’s significantly greater than 1.0, that’s generally a good sign: the business is generating robust cash flows to pay its staff, suppliers, and interest costs on short-term debt. If it’s consistently below 1.0, the company might struggle to handle its current liabilities without drawing on lines of credit or raising funds elsewhere.
Another favorite is the Cash Return on Assets (CFROA). While Return on Assets (ROA) uses net income in the numerator, CFROA uses cash flow from operations instead:
CFROA tells you how well management is using the firm’s total asset base to generate cold, hard cash. It’s a measure of efficiency and profitability in cash terms.
If CFROA seems chronically low compared to a peer group, potential causes include cost management issues, an inability to turn inventory quickly, or an imbalance between credit terms extended to customers and credit terms demanded by suppliers. In an extreme scenario, low CFROA might reveal that the business is always short on liquidity, perhaps relying heavily on new financing to sustain operations.
Traditional ROA uses net income, which can be influenced heavily by accruals, deferrals, and one-time items. CFROA, on the other hand, shows what proportion of the asset base is truly generating cash. If a company’s ROA is notably higher than its CFROA for extended periods, that discrepancy suggests the firm’s reported earnings may be front-loaded or based on less-than-certain receivables.
Cash coverage ratios examine a company’s ability to meet its fixed charges—most notably interest expense—using internally generated cash. One commonly referenced metric is:
Yes, we do sometimes add back interest and/or taxes paid if they were originally subtracted as part of CFO. The goal is to see whether CFO is enough to handle interest expense comfortably. A ratio substantially above 1.0 (often something like 2x or more) indicates that the firm can service its debt promptly, even if operating conditions worsen.
Even though Free Cash Flow (FCF) isn’t always included as a formal ratio by itself, it’s often used in tandem with the above metrics. FCF is basically:
If FCF is negative over multiple periods, the firm may be forced to raise equity or debt unless it can find a way to improve operations. For certain valuations or capital-structure analyses, the consistency (or volatility) of FCF is more telling than net income trends.
One big red flag is a persistent gap between net income and CFO. Here are a few examples:
Comparing cash-based ratios to accrual-based ratios can help. For instance, a high operating margin (net income / revenue) but a low cash flow margin (CFO / revenue) could hint that the supposed profitability might not be sustainable.
Below is a simple Mermaid diagram illustrating how cash flows feed into operating, investing, and financing activities, and how each category interrelates:
flowchart LR
A["Sales Revenue <br/>(Cash Inflows)"] --> B["Operating Cash Flow <br/>(CFO)"]
B --> C["Investing Activities <br/>(Capital Expenditures)"]
B --> D["Financing Activities <br/>(Debt Payments, Dividends)"]
C --> E["Net Cash Flow"]
D --> E["Net Cash Flow"]
This diagram simplifies the idea that CFO is the foundation for both investing and financing decisions. If CFO is insufficient or erratic, the firm may need external financing to meet its obligations or invest in new growth projects.
Let’s say Company ABC has:
From this, we compute:
Operating Cash Flow Ratio = CFO / Current Liabilities
= $0.9 million / $1.0 million = 0.9
CFROA = CFO / Average Total Assets
= $0.9 million / $10 million = 0.09 or 9%
Cash Coverage Ratio = (CFO + Interest Paid + Taxes Paid) / Interest Paid
= ($0.9 + $0.15 + $0.05) / $0.15 = $1.1 / $0.15 ≈ 7.3
Free Cash Flow (FCF) = CFO – CapEx = $0.9 million – $0.4 million = $0.5 million
At first glance, the operating cash flow ratio of 0.9 is slightly below 1.0, which means the company’s CFO was not fully sufficient to cover its short-term liabilities for this period—maybe not a crisis, but it’s worth noting for a trend analysis. However, the coverage ratio of about 7.3 is robust. It suggests that interest expense is well-covered if management chooses to direct CFO primarily toward interest obligations.
That begs the question: Is this firm allocating enough funds toward capital expenditures? Or is it generating short-term coverage at the expense of reinvestment? We see that the company spent 0.4 million on capital expenditures, leaving 0.5 million in free cash flow. This might be adequate, but an analyst should examine whether those capital expenditures are sufficient to maintain or grow the asset base.
I remember once analyzing a regional retailer who displayed handsome net income growth quarter after quarter. Management took every opportunity to announce expansions into new markets. When I dug into their cash flow statement, though, the CFO was basically nonexistent. Even more bizarre, their accounts receivable skyrocketed, indicating they’d extended credit to customers who weren’t paying on time. It turned out the expansions were financed largely by short-term debt, and the CFO didn’t catch up until months later—if at all. Eventually, they had to restructure. That’s when I learned how CFO can provide a reality check for what might be inflated or illusory net income.
Here’s a quick snippet showing how an analyst might compute these cash flow ratios from a dataset in Python. It assumes you have a dataset with columns for CFO, current liabilities, interest paid, taxes paid, total assets, and capital expenditures:
1import pandas as pd
2
3data = {
4 'CFO': [900000, 1200000, 1150000],
5 'CurrentLiabilities': [1000000, 900000, 950000],
6 'InterestPaid': [150000, 150000, 155000],
7 'TaxesPaid': [50000, 70000, 65000],
8 'AvgTotalAssets': [10000000, 10500000, 11000000],
9 'CapEx': [400000, 500000, 600000]
10}
11df = pd.DataFrame(data)
12
13df['OperatingCashFlowRatio'] = df['CFO'] / df['CurrentLiabilities']
14
15df['CFROA'] = df['CFO'] / df['AvgTotalAssets']
16
17df['CashCoverage'] = (df['CFO'] + df['InterestPaid'] + df['TaxesPaid']) / df['InterestPaid']
18
19df['FCF'] = df['CFO'] - df['CapEx']
20
21print(df)
It’s a simplistic example, but it shows how quickly these metrics can be generated once you have the right data at your fingertips.
Cash flow ratios are powerful tools to evaluate how sound or shaky a company’s financial foundation might be. While accrual-based ratios can detail a firm’s profitability or operational efficiency, it’s the cash flow ratios that peel back the layers, revealing the genuine capacity to meet obligations and invest for the future. When these ratios diverge from the accrual-based story, that’s your cue to dig deeper.
For exam-day success, keep these tips in mind:
In short, analyzing cash-based metrics side by side with accrual-based metrics helps you build a well-rounded view of a firm’s viability and resilience. Keep practicing ratio calculations, but also interpret them in context—because it’s that interpretation that truly adds value and demonstrates mastery of financial analysis.
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