How to Analyze Stocks: Fundamental and Technical Analysis
Learn how to research and analyze stocks before investing. Master fundamental analysis, key financial metrics, and basic technical analysis for smarter investing.
Why Stock Analysis Matters
Before buying any stock, you should understand what you're buying. Stock analysis helps you:
- Determine if a stock is overvalued or undervalued
- Understand the company's financial health
- Make informed decisions instead of guessing
- Avoid costly mistakes
There are two main approaches: fundamental analysis (studying the business) and technical analysis (studying price patterns).
Fundamental Analysis
Fundamental analysis examines a company's financial health, competitive position, and growth prospects to determine its intrinsic value.
Financial Statements to Review
1. Income Statement (Profit & Loss)
Shows revenue, expenses, and profit over a period.
Key items:
- Revenue: Total sales
- Gross Profit: Revenue minus cost of goods sold
- Net Income: Bottom-line profit after all expenses
- Earnings Per Share (EPS): Net income ÷ shares outstanding
2. Balance Sheet
Snapshot of assets, liabilities, and equity at a point in time.
Key items:
- Assets: What the company owns
- Liabilities: What the company owes
- Shareholders' Equity: Assets minus liabilities
- Cash position: Available cash
3. Cash Flow Statement
Shows actual cash moving in and out.
Key items:
- Operating cash flow: Cash from main business
- Free cash flow: Operating cash minus capital expenditures
- Cash flow vs. earnings: Should be similar
Essential Valuation Metrics
Price-to-Earnings Ratio (P/E)
Formula: Stock Price ÷ Earnings Per Share
What it tells you: How much you pay for $1 of earnings
How to use it:
- Lower P/E = potentially cheaper
- Compare to industry average
- Consider growth rate
Example:
- Stock at $100, EPS of $5 = P/E of 20
- You're paying $20 for every $1 of earnings
Benchmarks:
- S&P 500 average: ~20-25
- Growth stocks: 30-50+
- Value stocks: 10-15
Price-to-Earnings Growth (PEG)
Formula: P/E Ratio ÷ Annual EPS Growth Rate
What it tells you: P/E adjusted for growth
How to use it:
- PEG under 1: Potentially undervalued
- PEG of 1: Fairly valued
- PEG over 2: Potentially overvalued
Price-to-Sales Ratio (P/S)
Formula: Market Cap ÷ Annual Revenue
What it tells you: What you pay per dollar of sales
When to use: Useful for unprofitable companies or comparing within industries
Benchmarks:
- Below 1: Potentially undervalued
- 1-2: Average
- Above 3: Expensive (unless high growth)
Price-to-Book Ratio (P/B)
Formula: Stock Price ÷ Book Value Per Share
What it tells you: Price relative to net asset value
When to use: Useful for asset-heavy companies (banks, manufacturers)
Benchmarks:
- Below 1: Trading below net assets
- 1-3: Average range
- Above 3: Premium valuation
Profitability Metrics
Return on Equity (ROE)
Formula: Net Income ÷ Shareholders' Equity
What it tells you: How efficiently company uses investor money
Benchmarks:
- Below 10%: Poor
- 10-20%: Good
- Above 20%: Excellent
Profit Margin
Formula: Net Income ÷ Revenue × 100
What it tells you: Percentage of revenue kept as profit
Varies by industry:
- Software: 20-30%+
- Retail: 2-5%
- Banks: 15-25%
Growth Metrics
Revenue Growth
Year-over-year increase in sales
What to look for:
- Consistent growth over multiple years
- Acceleration is positive
- Compare to industry average
Earnings Growth
Year-over-year increase in EPS
What to look for:
- Growing faster than revenue (margin expansion)
- Sustainable growth
- Not driven by one-time events
Financial Health Metrics
Debt-to-Equity Ratio
Formula: Total Debt ÷ Shareholders' Equity
What it tells you: How much debt vs. equity finances the company
Benchmarks:
- Below 0.5: Conservative
- 0.5-1.5: Moderate
- Above 2: High leverage (risky)
Current Ratio
Formula: Current Assets ÷ Current Liabilities
What it tells you: Ability to pay short-term obligations
Benchmarks:
- Below 1: Liquidity concerns
- 1-2: Healthy
- Above 3: Maybe not using cash efficiently
Technical Analysis Basics
Technical analysis studies price charts and trading volume to identify patterns and trends. While more useful for traders, investors can use it to time entries.
Key Concepts
Support and Resistance
- Support: Price level where buying increases (floor)
- Resistance: Price level where selling increases (ceiling)
When price breaks through resistance, it often becomes new support.
Moving Averages
Smooth out price data to identify trends.
Common moving averages:
- 50-day MA: Short-term trend
- 200-day MA: Long-term trend
Signals:
- Price above 200-day MA: Bullish
- Price below 200-day MA: Bearish
- "Golden cross" (50 crosses above 200): Bullish signal
- "Death cross" (50 crosses below 200): Bearish signal
Volume
Number of shares traded in a period.
What to look for:
- High volume on price increases: Strong buying
- High volume on price drops: Strong selling
- Low volume moves: Less significant
Chart Patterns (Basic)
Uptrend
Higher highs and higher lows. Generally bullish.
Downtrend
Lower highs and lower lows. Generally bearish.
Sideways/Consolidation
Price trading in a range. Waiting for breakout direction.
How to Research a Stock
Step-by-Step Process
1. Understand the Business
- What does the company sell?
- Who are its customers?
- What's its competitive advantage?
- Can you explain it simply?
2. Check the Financials
- Is revenue growing?
- Is the company profitable?
- Is debt manageable?
- Is cash flow positive?
3. Evaluate Valuation
- Is P/E reasonable for the industry?
- How does PEG compare to peers?
- Is current price below intrinsic value?
4. Assess Management
- Track record of execution?
- Aligned with shareholders (own stock)?
- Clear communication?
5. Consider the Moat
- What protects from competition?
- Brand, patents, network effects?
- Switching costs for customers?
Where to Find Information
Free Resources:
- Yahoo Finance: Quotes, financials, news
- SEC.gov/EDGAR: Official filings (10-K, 10-Q)
- Company investor relations: Annual reports, presentations
- Earnings call transcripts
Brokerage Research:
- Most brokers provide free research
- Analyst reports and ratings
- Screening tools
Red Flags to Watch For
Financial Red Flags
- Declining revenue for multiple quarters
- Negative cash flow while reporting profits
- Rapidly increasing debt
- Frequent "one-time" charges
- Accounting changes
Business Red Flags
- High management turnover
- Insiders selling heavily
- Losing market share
- Dependent on single customer/product
- Regulatory troubles
Valuation Red Flags
- P/E much higher than industry without justification
- Stock up 100%+ with no fundamental change
- "This time is different" narratives
- Everyone talking about it (late to the party)
Building Your Analysis Checklist
Quick Analysis (15 minutes)
- [ ] Revenue growing?
- [ ] Profitable (positive net income)?
- [ ] P/E reasonable?
- [ ] Debt-to-equity under 1?
- [ ] Positive free cash flow?
Deep Dive (1-2 hours)
- [ ] Read recent 10-K annual report
- [ ] Listen to latest earnings call
- [ ] Compare metrics to competitors
- [ ] Research industry trends
- [ ] Check insider buying/selling
- [ ] Read analyst reports
Key Takeaways
- Always do your homework before buying any stock
- Fundamental analysis helps find quality companies
- Key metrics: P/E, PEG, ROE, debt-to-equity
- Technical analysis can help with entry timing
- Compare to peers in the same industry
- Watch for red flags in financials and business
- Use multiple sources for research
- If you can't explain it, don't buy it
Frequently Asked Questions
There is no single most important metric—it depends on the company type. For profitable companies, P/E ratio and ROE are key. For growth companies, revenue growth and PEG ratio matter more. Always look at multiple metrics together for a complete picture.
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