Financial ratios can turn a company’s annual report from a wall of numbers into a story.

A good investor doesn’t look at one ratio and declare a stock attractive. Instead, ratios are used together to answer four important questions:

Is the business financially strong? Is it profitable? Is it growing? And am I paying a reasonable price for that quality?

For Indian investors analysing companies listed on the NSE and BSE, understanding financial ratios can dramatically improve the quality of fundamental analysis.

But there is an important catch: there is rarely a universally “good” ratio. Sector, business model, capital intensity, economic cycle and accounting policies all matter.

This guide covers 30 important financial ratios, organised into seven categories, along with indicative benchmarks for Indian equities, explanations of whether high or low is generally preferable, and practical ways to use them.

Why Financial Ratios Matter

Imagine that two companies each report ₹100 crore of profit.

At first glance, they look identical.

But suppose:

• Company A generates ₹100 crore of profit from ₹500 crore of equity.

• Company B generates ₹100 crore from ₹2,000 crore of equity.

The businesses produce the same accounting profit, but their efficiency is dramatically different.

That’s where ratios become useful.

A ratio converts an absolute number into something that can be compared:

Company → Ratio → Benchmark → Trend → Decision

The most useful comparisons are usually:

1. Company vs its own history

2. Company vs competitors

3. Company vs industry economics

4. Company vs valuation

5. Company across different economic cycles

The 7 Major Categories of Financial Ratios

                         FINANCIAL RATIOS
                                │
        ┌──────────┬────────────┼────────────┬──────────┐
        ↓          ↓            ↓            ↓          ↓
    Liquidity   Solvency   Profitability   Growth   Efficiency
        │          │            │            │          │
        └──────────┴────────────┼────────────┴──────────┘
                                ↓
                         Valuation Ratios
                                │
                                ↓
                    Shareholder Return Ratios

For practical equity investing, we can broadly divide them into seven categories:

An important point: cash flow cuts across several categories. Free cash flow, operating cash flow and cash conversion should therefore be considered alongside profitability and valuation rather than treated as an isolated subject.

Category A — Liquidity Ratios 💧

Liquidity ratios examine whether a company can meet its short-term obligations.

They are particularly important for businesses with significant working-capital requirements.

Ratio 1 — Current Ratio

Formula

Current Ratio = Current Assets ÷ Current Liabilities

If a company has ₹200 crore of current assets and ₹100 crore of current liabilities:

Current Ratio = 2.0

Is high or low better?

Generally, higher is safer, but excessively high liquidity can also indicate inefficient use of capital.

These aren’t hard rules.

A company may have a high current ratio because it carries excessive inventories or receivables.

Investor lesson: Don’t ask only “How high is the ratio?” Ask “What makes up the current assets?”

Ratio 2 — Quick Ratio

Formula

Quick Ratio = (Current Assets − Inventory − Prepaid Expenses) ÷ Current Liabilities

Inventory is removed because it may take time to convert into cash.

Is high or low better?

Higher is generally better.

For a retailer, inventory is an essential part of the business, so the ratio needs additional context.

Ratio 3 — Cash Ratio

Formula

Cash Ratio = Cash & Cash Equivalents ÷ Current Liabilities

This is an even more conservative liquidity measure.

Is high or low better?

Generally higher, but too much idle cash can reduce capital efficiency.

A company with a cash ratio of 1 theoretically has enough cash and cash equivalents to cover all current liabilities.

Category B — Solvency & Leverage Ratios 🛡️

Liquidity asks whether the company can survive the short term.

Solvency asks a bigger question:

Can the company comfortably carry its debt over the long term?

Ratio 4 — Debt-to-Equity Ratio

Formula

Debt-to-Equity = Total Debt ÷ Shareholders’ Equity

Is high or low better?

Generally, lower is safer.

These are broad screening ranges rather than universal standards.

Infrastructure, utilities, real estate and capital-intensive businesses naturally carry more debt than asset-light software companies.

For banks and NBFCs, conventional debt-to-equity analysis is not directly comparable with non-financial companies.

Ratio 5 — Net Debt-to-EBITDA

Formula

Net Debt-to-EBITDA = (Total Debt − Cash) ÷ EBITDA

This asks:

How many years of current EBITDA would theoretically be required to repay net debt?

Is high or low better?

Lower is generally better.

Sector economics matter enormously.

Ratio 6 — Interest Coverage Ratio

Formula

Interest Coverage = EBIT ÷ Interest Expense

A company with ₹100 crore EBIT and ₹20 crore interest expense has:

Interest Coverage = 5×

Is high or low better?

Higher is better.

This ratio becomes particularly useful during rising-interest-rate cycles.

Ratio 7 — Financial Leverage

Formula

Financial Leverage = Average Total Assets ÷ Average Shareholders’ Equity

It indicates how much of the asset base is supported by equity versus other financing.

Is high or low better?

Neither universally.

Higher leverage can amplify shareholder returns when the business performs well—but it can also amplify losses.

For financial institutions, leverage naturally operates at much higher levels, so comparison must be sector-specific.

Category C — Profitability Ratios 💰

Profitability ratios are among the most important metrics for long-term equity investors.

A company can grow revenue for years and still destroy shareholder value if it cannot earn attractive returns on the capital required to produce that growth.

Ratio 8 — Gross Profit Margin (GPM)

Formula

Gross Profit Margin = Gross Profit ÷ Revenue × 100

Gross profit is revenue minus the direct cost of goods or services sold.

Is high or low better?

Generally higher is better, assuming accounting treatment is comparable.

A rising GPM can indicate:

• Pricing power

• Better product mix

• Lower input costs

• Manufacturing efficiencies

A falling GPM can indicate:

• Rising raw-material costs

• Weakening pricing power

• Increasing competition

• Adverse product mix

• Discounting

• Other changes in the economics of the business

And this is where GPM becomes particularly interesting.

GPM can be an early warning signal 🚨

For many non-financial product and manufacturing businesses, a sustained deterioration in GPM can appear before the deterioration becomes obvious in operating profit or net profit.

Think of the income statement as a funnel:

Revenue
   ↓
Gross Profit
   ↓
Operating Profit
   ↓
Net Profit
   ↓
Cash Flow

If the cost of producing the product starts rising faster than the company can increase selling prices, the damage may first appear in gross margin.

For example:

The company is still growing revenue.

But the economics underneath that growth are deteriorating.

GPM is giving the investor an early warning.

However, this is not universal. In some businesses, receivables, inventory, cash flow, leverage or other indicators may deteriorate first. GPM is also not meaningful in the same way for financial institutions.

Ratio 9 — Operating Profit Margin

Formula

Operating Margin = Operating Profit ÷ Revenue × 100

Is high or low better?

Generally higher is better.

But the most useful question is:

Is the operating margin stable or improving over time?

A company consistently maintaining a 20% operating margin may be more attractive than one whose margin jumps from 10% to 25% for one year because of an unusual event.

Ratio 10 — EBITDA Margin

Formula

EBITDA Margin = EBITDA ÷ Revenue × 100

Is high or low better?

Generally higher is better, provided EBITDA translates into actual cash generation.

EBITDA is useful for comparing operating performance, but investors should never confuse EBITDA with cash flow.

Ratio 11 — Net Profit Margin

Formula

Net Profit Margin = Net Profit ÷ Revenue × 100

Is high or low better?

Generally higher is better.

However, unusually high margins deserve investigation.

A one-time asset sale, tax reversal or exceptional income can temporarily inflate net profit.

Ratio 12 — Return on Equity (ROE)

Formula

ROE = Net Profit ÷ Average Shareholders’ Equity × 100

ROE answers:

How efficiently is the company generating profit from shareholders’ capital?

Broad interpretation

A high ROE is not automatically evidence of a wonderful business.

Debt can artificially boost ROE.

That is why ROE should be examined alongside Debt-to-Equity and ROCE.

Ratio 13 — Return on Capital Employed (ROCE)

Formula

A commonly used version is:

ROCE = EBIT ÷ Capital Employed × 100

ROCE measures how effectively a business generates operating profits from the capital employed in the business.

Broad interpretation

Compare within the same industry.

A capital-light software business and a steel manufacturer should not be judged by identical ROCE expectations.

Ratio 14 — Return on Assets (ROA)

Formula

ROA = Net Profit ÷ Average Total Assets × 100

It measures how efficiently the company converts its asset base into profit.

Is high or low better?

Generally higher is better.

ROA is particularly useful when comparing companies with different capital structures.

For banks, however, ROA is one of the most important profitability measures and operates at much lower levels than in many ordinary businesses.

Category D — Growth Ratios 🚀

Growth is important—but profitable, sustainable growth is what creates long-term shareholder value.

Ratio 15 — Revenue Growth

Formula

Revenue CAGR = (Ending Revenue ÷ Beginning Revenue)^(1/n) − 1

Broad interpretation

There is no universal “good” number.

As a rough framework:

• <5%: slow growth

• 5–10%: moderate

• 10–15%: healthy

• 15–20%: strong

• 20%: high growth requiring sustainability analysis

The crucial question is whether revenue growth translates into profit and cash-flow growth.

Ratio 16 — Earnings Growth

EPS or net-profit growth is often more important than revenue growth.

A company growing revenue at 15% but earnings at 5% may be facing margin pressure.

Conversely, a company growing revenue at 10% but earnings at 20% may be becoming substantially more efficient.

Investor rule

Revenue growth → Profit growth → Cash-flow growth

The strongest businesses often show consistency across all three.

Ratio 17 — EPS Growth

Formula

EPS Growth = (Current EPS ÷ Previous EPS) − 1

EPS is particularly useful because it incorporates the effect of share count.

If net profit grows 10% but shares outstanding grow 10%, EPS may barely grow.

That’s why investors should not look at net profit alone.

Ratio 18 — Free Cash Flow Growth

Formula

Free Cash Flow = Operating Cash Flow − Capital Expenditure

Growing free cash flow is a powerful indicator because it represents cash available after capital expenditure.

Is high or low better?

Higher and consistently positive is generally better.

But cyclical businesses can experience years of negative FCF during major investment cycles.

The trend matters more than one year’s figure.

Category E — Efficiency Ratios ⚙️

Profitability tells you the outcome.

Efficiency ratios help explain how the company achieved it.

Ratio 19 — Asset Turnover Ratio

Formula

Asset Turnover = Revenue ÷ Average Total Assets

A ratio of 2 means the company generates ₹2 of revenue for every ₹1 invested in assets.

Is high or low better?

Generally higher is better, but only within comparable business models.

Retailers may have high asset turnover.

Utilities may have low asset turnover.

Both can still be excellent businesses.

Ratio 20 — Inventory Turnover Ratio

Formula

Inventory Turnover = Cost of Goods Sold ÷ Average Inventory

It measures how quickly inventory is sold and replaced.

Is high or low better?

Generally higher is better, but an excessively high ratio could indicate insufficient inventory.

A declining inventory turnover ratio can be an early warning sign.

Ratio 21 — Receivables Turnover Ratio

Formula

Receivables Turnover = Revenue ÷ Average Trade Receivables

Higher generally means customers are paying faster.

A falling ratio may indicate:

• Weak collection

• Aggressive credit terms

• Customer stress

• Revenue-quality problems

This is particularly useful when revenue growth looks excellent but cash generation does not.

Ratio 22 — Working Capital Turnover

Formula

Working Capital Turnover = Revenue ÷ Average Working Capital

It measures how efficiently working capital supports revenue generation.

A very high number isn’t automatically good.

It can sometimes indicate that the company is operating with dangerously little working capital.

Category F — Valuation Ratios 💵

Now we arrive at the question investors often ask first:

“Is this stock cheap?”

Unfortunately, valuation is where many investors misuse ratios.

A low valuation ratio does not automatically mean a cheap stock.

Ratio 23 — Price-to-Earnings Ratio (P/E)

Formula

P/E = Market Price per Share ÷ EPS

A P/E of 20 means investors are paying ₹20 for every ₹1 of annual earnings.

Is high or low better?

Generally, lower can be cheaper, but not necessarily better.

A company growing earnings at 20% may deserve a higher P/E than one growing earnings at 5%.

Peter Lynch became closely associated with comparing P/E with earnings growth rather than examining P/E in isolation.

The central lesson is:

Price must be considered alongside growth.

Better way to use P/E

Compare:

Current P/E vs historical P/E vs industry P/E vs expected growth

Ratio 24 — Price-to-Book Ratio (P/B)

Formula

P/B = Market Price per Share ÷ Book Value per Share

A P/B of 2 means investors are paying twice the accounting book value of equity.

Particularly useful for

• Banks

• NBFCs

• Financial institutions

• Asset-heavy businesses

Is low better?

A lower P/B can appear attractive—but a P/B below 1 can also indicate that investors believe the assets are worth less than their accounting value or that future returns will be poor.

For high-ROE businesses, investors may rationally pay significantly more than book value.

Ratio 25 — Price-to-Sales Ratio (P/S)

Formula

P/S = Market Capitalisation ÷ Revenue

This can be useful when a company has:

• Low profits

• Temporary losses

• Highly variable margins

• Early-stage growth

Is low better?

Generally lower, but margins matter enormously.

A P/S of 2 for a 30% net-margin business is very different from a P/S of 2 for a 2% margin business.

Ratio 26 — Price-to-Free-Cash-Flow Ratio (P/FCF)

Formula

P/FCF = Market Capitalisation ÷ Free Cash Flow

This compares the price investors pay with actual cash generated after capital expenditure.

Is low better?

Generally yes.

But FCF can be cyclical, so using one year’s FCF can be misleading.

A multi-year average can provide a better picture.

Ratio 27 — PEG Ratio

Formula

PEG = P/E ÷ Earnings Growth Rate

For example:

• P/E = 20

• Earnings growth = 20%

PEG = 1.0

Peter Lynch became strongly associated with the idea of comparing P/E with earnings growth.

A PEG around 1 is often used as a rough starting point for “reasonable” valuation.

But this is not a law of valuation.

Growth quality, duration, cyclicality, capital requirements and interest rates all matter.

Category G — Shareholder Return Ratios 👑

A company ultimately exists to create economic value for its owners.

These ratios help investors understand how that value is distributed.

Ratio 28 — Dividend Payout Ratio

Formula

Payout Ratio = Dividends ÷ Net Profit × 100

A company earning ₹100 crore and paying ₹40 crore as dividends has a payout ratio of 40%.

Is high or low better?

Neither universally.

A young company may rationally pay almost nothing because reinvesting capital generates attractive returns.

A mature cash-generating company may rationally distribute much more.

Ratio 29 — Dividend Yield

Formula

Dividend Yield = Annual Dividend per Share ÷ Share Price × 100

Is high better?

Not necessarily.

A high dividend yield can result from:

• A genuinely generous dividend

• A falling stock price

• A temporary special dividend

• An unsustainable payout

Therefore:

Never evaluate dividend yield without examining payout ratio and free cash flow.

Ratio 30 — Price-to-Cash-Flow Ratio

Formula

P/CF = Market Capitalisation ÷ Operating Cash Flow

It compares market value with cash generated from operations.

This can be useful when accounting earnings differ significantly from operating cash flow.

However, working-capital movements can make annual operating cash flow volatile.

The Most Important Insight: Ratios Have a Direction 📈📉

Many investors use financial ratios as if they were static numbers.

That’s a mistake.

Consider two companies:

Which business deserves more investigation?

Company B has the better current ROCE.

But Company A may have the more interesting trajectory.

This is why ratio trends can be more informative than ratio levels.

Early Warning Signals: Which Ratios Should Make Investors Nervous? 🚨

This is perhaps one of the most useful ways to apply financial ratios.

Investors naturally search for companies with:

High ROE + High ROCE + High growth + Low debt

But another equally important exercise is to identify companies whose economics are deteriorating.

Think of ratios as a company’s early-warning system.

Warning Signal 1 — GPM Starts Falling

For many non-financial businesses, this can be one of the earliest warning signs.

Consider:

GPM: 42% → 40% → 38% → 35%

while revenue continues to grow.

Something has changed.

Potential explanations include:

• Raw-material inflation

• Pricing pressure

• Increased competition

• Product-mix deterioration

• Loss of pricing power

• Discounting

• Manufacturing inefficiencies

The investor’s next question should be:

“Why is gross margin falling?”

If management cannot provide a convincing explanation—or if the deterioration persists—the signal becomes more concerning.

Warning Signal 2 — GPM Falls, Then OPM Falls

This is more significant.

GPM ↓
   ↓
Cost pressure / pricing pressure
   ↓
OPM ↓
   ↓
Profitability deteriorates
   ↓
ROCE / ROE may eventually decline

If gross margin deteriorates first and operating margin follows, the evidence of deteriorating business economics becomes stronger.

Warning Signal 3 — Revenue Keeps Growing but Receivables Explode

Suppose:

Revenue growth = 12%

but:

Receivables growth = 30%

This doesn’t automatically mean fraud or trouble.

But it deserves investigation.

Possible explanations include:

• Longer credit periods

• Delayed collections

• Customer stress

• Aggressive revenue recognition

• A changing customer mix

The important thing is the relationship between the numbers.

Warning Signal 4 — Profit Grows but Cash Flow Doesn’t

Suppose:

Net profit CAGR = 18%

but:

Operating cash flow CAGR = 4%

Again, this isn’t automatically bad.

Working capital can temporarily distort cash flow.

But if the divergence persists for several years, the investor should investigate earnings quality.

Warning Signal 5 — Inventory Grows Much Faster Than Sales

For example:

Sales growth = 10%

Inventory growth = 30%

Potential explanations include:

• Anticipated demand

• Capacity expansion

• Supply-chain strategy

• Input-price inflation

• Slower-moving inventory

• Weakening demand

The ratio doesn’t provide the answer.

It tells you where to look.

Warning Signal 6 — ROCE Starts Falling

A company can continue reporting revenue and profit growth while destroying capital efficiency.

For example:

ROCE: 28% → 25% → 21% → 18%

This may indicate that each additional rupee of capital is generating progressively less operating profit.

For a long-term investor, that can be more important than one year’s earnings growth.

A Financial-Ratio Warning System 🚨

A useful framework is:

                 EARLY WARNING SYSTEM
                         │
          ┌──────────────┼──────────────┐
          ↓              ↓              ↓
        GPM ↓       Receivables ↑    Inventory ↑
          │              │              │
          └──────────────┼──────────────┘
                         ↓
                    Investigate
                         │
              ┌──────────┼──────────┐
              ↓          ↓          ↓
            OPM ↓      CFO ↓      ROCE ↓
              │          │          │
              └──────────┼──────────┘
                         ↓
                  Stronger evidence
                  of deterioration

The important idea is:

One deteriorating ratio = investigate.

Several related ratios deteriorating together = take the warning seriously.

Why Five- and Ten-Year Trends Matter 📊

One of the biggest mistakes investors make is treating the latest financial year as representative of the entire business.

Consider this hypothetical company:

The latest ROCE of 28% is impressive.

But the trend is even more impressive.

The company appears to be:

• Improving profitability

• Reducing leverage

• Expanding margins

• Becoming more capital efficient

That is fundamentally different from a company whose ROCE suddenly jumped from 12% to 28% because of a one-off event.

Think in terms of ratio trajectories

BAD ANALYSIS

Latest ROE = 25%
        ↓
"Great company!"


BETTER ANALYSIS

ROE → 12% → 15% → 18% → 21% → 25%
Debt → falling
Margins → rising
FCF → positive
        ↓
Potentially improving economics

The direction, consistency and cause of the ratio matter.

The Five-Year Ratio Test 📈

For serious long-term investing, consider examining at least:

5 years of annual ratios

and, where available:

10 years of history

Look for:

1️⃣ Stability

Does ROCE remain consistently high?

2️⃣ Direction

Is ROE improving or deteriorating?

3️⃣ Cyclicality

Does profitability collapse during downturns?

4️⃣ Balance-sheet discipline

Is debt rising faster than earnings?

5️⃣ Cash conversion

Does operating cash flow broadly track reported profits?

6️⃣ Margin trajectory

Is GPM stable, expanding or steadily contracting?

That last question can sometimes reveal trouble before the decline becomes obvious in bottom-line earnings.

A Powerful Combination: ROCE + Growth + Valuation

One of the most useful ways to analyse a company is to combine three dimensions.

                 BUSINESS QUALITY
                       │
                      ROCE
                       │
          ┌────────────┼────────────┐
          ↓            ↓            ↓
       Growth       Cash Flow    Balance Sheet
          │            │            │
          └────────────┼────────────┘
                       ↓
                    VALUATION
                       │
                  P/E / PEG / P/FCF
                       ↓
                 INVESTMENT CASE

A high-quality business can still be a poor investment if purchased at an absurd valuation.

Likewise, a cheap company can remain cheap if its economics are deteriorating.

The objective is not to find the lowest ratio.

It is to find the best combination of business quality, growth, financial strength and price.

Famous Investor Insight: Peter Lynch and P/E 📚

Peter Lynch repeatedly emphasised that investors should not examine P/E in isolation.

His investment philosophy became closely associated with relating valuation to earnings growth, which led to the widespread use of the PEG ratio.

The central lesson is:

Price must be considered alongside growth.

This is particularly useful in the Indian market, where investors sometimes compare a fast-growing company with a mature company simply because both have a P/E of 30.

The same P/E can represent completely different propositions.

Case Study: Why P/E Alone Can Mislead

Imagine two Indian companies.

At first glance, both have the same valuation.

But the investment cases are dramatically different.

Company B may deserve a premium because it combines:

• Faster growth

• Higher capital efficiency

• Lower leverage

• Better cash generation

• Improving margins

It still shouldn’t automatically be bought.

A P/E of 25 can be expensive if future expectations aren’t met.

But the investor now has a better question:

“What am I getting for the price I’m paying?”

Investor Scenario: Ravi’s Cheap Stock

👨‍💼 Ravi finds a company trading at a P/E of 9.

He thinks:

“The market is giving me a bargain.”

He investigates further.

• Revenue growth: 2%

• Earnings growth: -4%

• ROCE: 8%

• Debt/Equity: 1.8

• FCF: declining

• Receivables: rising

• Operating margin: falling

The P/E is low.

But the business economics are deteriorating.

Ravi has discovered an important investing principle:

Cheap is not the same as undervalued.

Investor Scenario: Anjali’s Expensive Stock

👩‍💼 Anjali finds a company trading at a P/E of 45.

She initially rejects it as expensive.

But she discovers:

• Revenue CAGR: 18%

• EPS CAGR: 23%

• ROCE: 30%

• Debt/Equity: 0.1

• FCF: consistently positive

• Margins: stable

• Market opportunity: expanding

She still shouldn’t automatically buy it.

A P/E of 45 can contain enormous expectations.

But she now has a better question:

Can future earnings growth justify today’s valuation?

That’s a much more sophisticated investment question than simply asking whether P/E is “high.”

Common Misconception ⚠️

“A low ratio is always good.”

This is one of the most dangerous shortcuts in fundamental analysis.

A low:

• P/E

• P/B

• P/S

• P/FCF

can indicate attractive valuation.

But it can also indicate that the market expects:

• Lower future growth

• Poor capital allocation

• Falling profitability

• High debt

• Cyclical earnings

• Governance concerns

• Structural industry problems

Similarly:

High ROE may be caused by excessive leverage.

High dividend yield may be caused by a collapsing share price.

High current ratio may indicate inefficient working capital.

High earnings growth may be caused by a low base.

Low P/E may occur at the peak of a cyclical company’s earnings.

Every ratio should trigger a question, not end the analysis.

Ratios That Should Usually Be Analysed Together 🔍

Some ratios become much more powerful when combined.

This is where financial-ratio analysis becomes much more powerful than simply running a stock screener.

What About Banks and NBFCs? 🏦

Financial companies require a different analytical framework.

Many traditional ratios designed for manufacturing or consumer companies do not translate cleanly to banks.

For banks and NBFCs, investors should pay greater attention to metrics such as:

• ROA

• ROE

• Net Interest Margin

• Gross NPA

• Net NPA

• Provision Coverage

• Capital Adequacy

• Credit Growth

• Slippage ratios

• Cost-to-income ratio

• Asset-quality trends

Never apply manufacturing-company benchmarks mechanically to banks.

What About Cyclical Companies? 🔄

This is another area where ratios can fool investors.

Consider a steel company during the peak of a commodity cycle.

Its:

• P/E may appear extremely low

• ROCE may appear spectacular

• Margins may look exceptional

• Debt may appear manageable

An investor looking only at the latest year might conclude:

“This is a fantastic bargain.”

But cyclical earnings can mean that the company is actually earning peak profits.

For cyclicals, investors should examine:

Normalised earnings + cycle history + balance sheet + asset economics

A low P/E at peak earnings can be less attractive than a higher P/E during depressed earnings.

A Practical Ratio Framework for Indian Investors 🇮🇳

Instead of analysing 30 ratios independently, use a five-step process.

Step 1 — Check Financial Strength 🛡️

Look at:

• Debt/Equity

• Net Debt/EBITDA

• Interest Coverage

• Current Ratio

Question: Can the company withstand a difficult cycle?

Step 2 — Check Business Quality 💰

Look at:

• GPM

• ROE

• ROCE

• ROA

• Operating Margin

• Net Margin

Question: Does the business earn attractive returns on capital?

And importantly:

Are those ratios improving, stable or deteriorating?

Step 3 — Check Growth 🚀

Look at:

• Revenue CAGR

• EPS CAGR

• Profit CAGR

• FCF growth

Question: Is the business actually expanding economically?

Step 4 — Check Cash Conversion 💵

Compare:

Net Profit → Operating Cash Flow → Free Cash Flow

If profits rise steadily but cash flow doesn’t follow, investigate.

Step 5 — Check Valuation 💵

Finally examine:

• P/E

• P/B

• PEG

• P/FCF

• Dividend Yield

Question: Is the price reasonable relative to the quality and growth you are buying?

The Smart Investor’s Ratio Dashboard

A compact long-term investor dashboard could look like this:

But don’t stop at the latest value.

For important ratios, add:

Current value + 5-year history + 10-year history + industry comparison

That gives you a much richer picture.

A Better Way to Read Financial Ratios 🧠

Instead of asking:

“Is this ratio good?”

Ask five questions:

1️⃣ Level

How good or bad is the current number?

2️⃣ Trend

Is it improving or deteriorating?

3️⃣ Relative position

How does it compare with competitors?

4️⃣ Cause

Why has the ratio changed?

5️⃣ Sustainability

Is the current level likely to persist?

This five-question framework can turn ratio analysis into genuine fundamental analysis.

The Ultimate Ratio Framework

                    FINANCIAL RATIOS
                           │
                           ↓
                    CURRENT LEVEL
                           │
                           ↓
                       TREND
                           │
                           ↓
                  INDUSTRY COMPARISON
                           │
                           ↓
                       CAUSE
                           │
                           ↓
                    SUSTAINABILITY
                           │
                           ↓
                  INVESTMENT DECISION

This is much more powerful than simply screening for:

ROE > 15%

or

P/E < 20

A good investor wants to understand why the number is what it is.

Conclusion

Financial ratios are not designed to tell investors exactly what to buy.

Their real purpose is more valuable:

They help investors ask better questions.

A P/E tells you what the market is paying for earnings.

ROCE tells you how efficiently capital is being used.

Debt-to-equity tells you about leverage.

Interest coverage tells you whether debt is becoming burdensome.

Revenue and EPS growth reveal the pace of expansion.

Free cash flow tells you whether accounting profits are translating into cash.

And valuation ratios help answer the final question:

How much am I paying for all of this?

But perhaps the most important lesson is that ratios are not static numbers.

For many non-financial businesses, a persistent decline in gross profit margin can be an early indication that something has changed in the underlying economics of the business.

If GPM falls, followed by operating margin, ROCE and eventually cash generation, the warning becomes considerably stronger.

Likewise, rising receivables, growing inventories, weakening cash conversion or increasing leverage can provide additional clues.

The most important upgrade an investor can make is therefore to stop looking at ratios as isolated numbers.

Look at:

levels + trends + relationships + causes.

A company’s ratio today is useful.

A company’s ratio over five or ten years can be far more revealing.

And the combination of financial strength, profitability, growth, cash generation and valuation is usually far more informative than any single ratio.

Key Takeaways

1. 📊 No single financial ratio can tell you whether a stock is a good investment. Ratios work best as a connected system.

2. 🚨 For many non-financial businesses, persistent GPM deterioration can be an early warning signal. If GPM falls and is followed by declining operating margins, ROCE and cash generation, the warning becomes much stronger.

3. 💰 ROE and ROCE reveal business economics, but always examine leverage alongside them.

4. 🚀 Growth matters—but profitable and cash-generating growth matters more than revenue growth alone.

5. 📈 Five- and ten-year ratio trends can reveal far more than the latest annual figure. Look for consistency, direction and the reasons behind changes.

6. 🧠 The best question isn’t “Is this ratio high or low?” but “Why is it high or low, and is that likely to persist?”

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