Fundamental Analysis for Beginners: 10 Ratios to Check Before Buying a Stock

Buying a stock without checking its fundamentals is like buying a house without seeing it. The price might look attractive, but you have no idea what you are really getting. Fundamental analysis helps you understand whether a company is healthy, growing and fairly priced.

This beginner-friendly guide explains 10 key financial ratios every investor should check before buying a stock, with simple hypothetical examples.

What is fundamental analysis?

Fundamental analysis studies a company’s business, financial statements, management and industry to estimate its true value. Technical analysis looks at price charts to time trades. Fundamental analysis asks a different question: is this a good business at a sensible price?

Most successful investors use both. Fundamentals help you choose what to buy. Tools like RSI and volume analysis help you decide when.

Where to find the numbers

You can find a company’s ratios in its annual report, quarterly results filed on NSE and BSE, and on most financial data websites and broker apps. Always compare ratios with the company’s own history and with its industry peers.

Valuation ratios: is the stock fairly priced?

1. Price-to-Earnings (P/E) ratio

P/E = Share price ÷ Earnings per share (EPS). It shows how much investors pay for every ₹1 of earnings.

Hypothetical example: if Company A trades at ₹400 and earns ₹20 per share, its P/E is 20. A lower P/E than peers may suggest undervaluation, but it can also signal weak growth.

2. PEG ratio

PEG = P/E ÷ annual earnings growth rate (%). It adjusts P/E for growth. A PEG around 1 is often seen as reasonable. Well above 1 may mean you are paying a lot for growth.

3. Price-to-Book (P/B) ratio

P/B = Share price ÷ Book value per share. It is especially useful for banks and asset-heavy businesses. A very low P/B can signal value or deep problems, so dig further.

Profitability ratios: is the business earning well?

4. Return on Equity (ROE)

ROE = Net profit ÷ Shareholders’ equity. It shows how efficiently a company uses shareholders’ money. Consistently high ROE, often above 15%, is a sign of a strong business, but check that it is not driven by heavy debt.

5. Return on Capital Employed (ROCE)

ROCE = Operating profit (EBIT) ÷ Capital employed. It includes both equity and debt, so it gives a fuller picture than ROE. Compare it with the company’s cost of borrowing.

6. Operating profit margin

Operating margin = Operating profit ÷ Revenue. It shows how much the company keeps from each ₹100 of sales after operating costs. Stable or rising margins suggest pricing power.

Financial health ratios: can the company survive tough times?

7. Debt-to-Equity ratio

D/E = Total debt ÷ Shareholders’ equity. A lower ratio means less financial risk. Many investors prefer non-financial companies with D/E below 1, though this varies by industry.

8. Interest coverage ratio

Interest coverage = EBIT ÷ Interest expense. It shows how comfortably the company can pay interest on its debt. A ratio below about 2 can be a warning sign.

9. Current ratio

Current ratio = Current assets ÷ Current liabilities. It measures short-term liquidity. A ratio above 1 means the company has more short-term assets than short-term obligations.

Growth ratio: is the business growing?

10. EPS growth

EPS growth tracks how fast earnings per share are rising over time. Look at three to five years, not a single quarter. Steady growth is usually better than one sudden jump.

Quick reference table

Ratio	What it tells you	What investors often look for
P/E	Price paid per ₹1 of earnings	Reasonable vs peers and history
PEG	Valuation adjusted for growth	Around 1
P/B	Price vs net assets	Useful for banks, compare with peers
ROE	Return on shareholders’ money	Consistently above 15%
ROCE	Return on all capital	Above cost of borrowing
Operating margin	Profit from each ₹100 of sales	Stable or rising
Debt-to-equity	Financial leverage	Below 1 for most non-financial firms
Interest coverage	Ability to pay interest	Comfortably above 2
Current ratio	Short-term liquidity	Above 1
EPS growth	Earnings growth	Steady over 3–5 years

These are general guidelines, not fixed rules. Every industry has its own normal ranges.

Beyond ratios: qualitative checks

Numbers tell only part of the story. Also check:

• Promoter holding and pledging: rising pledged shares can be a red flag.
• Management quality: track record, transparency and corporate governance.
• Competitive advantage: brand, cost leadership or a strong distribution network.
• Industry outlook: is the sector growing or shrinking?

Common beginner mistakes

1. Judging a stock by one ratio alone.
2. Comparing ratios across unrelated industries.
3. Ignoring debt when ROE looks high.
4. Chasing low P/E stocks without checking why they are cheap.
5. Skipping the annual report and relying only on tips.

Read more about avoidable errors in 9 common trading mistakes beginners make.

Frequently asked questions

What is the most important ratio in fundamental analysis?

There is no single most important ratio. Beginners often start with P/E, ROE and debt-to-equity together for a balanced view.

What is a good P/E ratio?

It depends on the industry and growth rate. Compare a company’s P/E with its peers and its own history instead of using one fixed number.

Can fundamental analysis be used for trading?

Yes. Many swing traders use fundamentals to shortlist strong companies and technical analysis to time entries.

Is fundamental analysis useful for a research analyst career?

Very much. It is at the core of equity research. See how to become a SEBI-registered research analyst.

Invest with understanding, not guesswork

Fundamental analysis turns investing from guesswork into a structured process. Learn these 10 ratios, use them together and always compare within the same industry. Want to master fundamental analysis? Upside’s Fundamental Analysis certification course teaches you to read financial statements and value companies through classroom training in Dadar and Thane. Explore our courses.