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Financial Statements Analysis

Difficulty intermediate

Overview

Financial statements are the foundation of fundamental analysis. Understanding them enables you to evaluate a company's financial health, profitability, and growth prospects.

Three Core Statements

1. Income Statement (Profit & Loss)

Revenue (Sales)
- Cost of Goods Sold (COGS)
= Gross Profit
- Operating Expenses (R&D, SG&A)
= Operating Income (EBIT)
- Interest Expense
= Pre-Tax Income
- Taxes
= Net Income

where: Revenue top-line sales · COGS direct cost of producing the goods sold · R&D research and development · SG&A selling, general, and administrative · EBIT earnings before interest and taxes · Net Income GAAP bottom-line profit does: the standard waterfall from sales to bottom-line profit — used as the scaffolding for every margin, return, and EPS calculation downstream.

Key Metrics: 

Gross Margin = Gross Profit / Revenue
Operating Margin = EBIT / Revenue
Net Margin = Net Income / Revenue
EPS = Net Income / Shares Outstanding

where: Gross Profit revenue minus COGS · EBIT operating income · Net Income after-tax profit · Shares Outstanding diluted share count does: the four headline profitability ratios — used to compare a company's pricing power, operating leverage, and per-share earning capacity against peers and its own history.

2. Balance Sheet

Assets = Liabilities + Shareholders' Equity

Assets:
  Current Assets (Cash, Receivables, Inventory)
  Non-Current Assets (PP&E, Intangibles, Goodwill)

Liabilities:
  Current Liabilities (Payables, Short-term Debt)
  Long-term Liabilities (Bonds, Long-term Debt)

Equity:
  Common Stock, Retained Earnings, Treasury Stock

where: Assets resources controlled by the firm · Liabilities external claims on those assets · Shareholders' Equity residual claim of owners · PP&E property, plant, and equipment does: the accounting identity that snapshots a firm's resources and how they were financed at one moment — used to assess solvency, capital structure, and the book-value base for ROE and ROA.

Key Metrics: 

Current Ratio = Current Assets / Current Liabilities
Debt-to-Equity = Total Debt / Total Equity
Book Value per Share = Total Equity / Shares Outstanding

where: Current Assets assets convertible to cash within a year · Current Liabilities obligations due within a year · Total Debt short-term plus long-term interest-bearing debt · Total Equity shareholders' equity · Shares Outstanding diluted share count does: the three first-look balance-sheet ratios — used to flag liquidity stress, capital-structure risk, and to anchor price-to-book valuations.

3. Cash Flow Statement

Operating Cash Flow (OCF)
  = Net Income + Depreciation + Changes in Working Capital

Investing Cash Flow
  = Capital Expenditures + Acquisitions - Asset Sales

Financing Cash Flow
  = Debt Issuance/Repayment + Dividends + Share Buybacks

Net Change in Cash = OCF + Investing + Financing

where: OCF cash generated by the core business · Depreciation non-cash expense added back · Working Capital change in receivables, inventory, payables · CapEx cash spent on long-lived assets does: decomposes total cash movement into operating, investing, and financing buckets — used to test whether reported earnings convert into cash and to identify firms funding dividends with debt.

Key Metrics: 

Free Cash Flow = OCF - CapEx
FCF Yield = FCF / Market Cap
FCF Margin = FCF / Revenue

where: FCF cash available to all capital providers after maintenance CapEx · Market Cap shares outstanding × price · Revenue GAAP top-line does: the cash-based equivalents of earnings yield and net margin — used to value mature companies whose accounting profit and cash generation can diverge sharply (heavy CapEx, working-capital swings).

Financial Ratio Analysis

Profitability Ratios

Ratio Formula What It Measures
ROE Net Income / Equity Return to shareholders
ROA Net Income / Assets Efficiency of asset use
ROIC NOPAT / Invested Capital Return on all capital
Gross Margin Gross Profit / Revenue Pricing power
Operating Margin EBIT / Revenue Operating efficiency
Net Margin Net Income / Revenue Overall profitability

Liquidity Ratios

Ratio Formula Healthy Range
Current Ratio Current Assets / Current Liabilities > 1.5
Quick Ratio (CA - Inventory) / Current Liabilities > 1.0
Cash Ratio Cash / Current Liabilities > 0.2

Leverage Ratios

Ratio Formula Healthy Range
Debt/Equity Total Debt / Total Equity < 2.0
Debt/Assets Total Debt / Total Assets < 0.5
Interest Coverage EBIT / Interest Expense > 3.0

Efficiency Ratios

Ratio Formula Interpretation
Asset Turnover Revenue / Total Assets Higher = more efficient
Inventory Turnover COGS / Average Inventory Higher = faster sales
Receivables Turnover Revenue / Average AR Higher = faster collection
Days Sales Outstanding 365 / Receivables Turnover Lower = better

Quality of Earnings

Red Flags

Flag What to Look For Concern
Revenue ≠ Cash Revenue growing but OCF declining Aggressive recognition
Rising DSO Days Sales Outstanding increasing Collection issues
Rising Inventory Inventory growing faster than sales Obsolescence risk
One-time Items Frequent "non-recurring" charges Masking real costs
Stock-Based Comp High SBC relative to revenue Real cost to shareholders
Goodwill Growth Acquisitions driving growth Integration risk

DuPont Analysis

Decomposes ROE into three components:

ROE = Net Margin × Asset Turnover × Equity Multiplier
    = (NI/Revenue) × (Revenue/Assets) × (Assets/Equity)

Shows whether ROE comes from:
- Profitability (margin)
- Efficiency (turnover)
- Leverage (multiplier)

where: ROE return on equity · NI net income · Asset Turnover revenue per dollar of assets · Equity Multiplier assets divided by equity (leverage) does: the DuPont decomposition splits ROE into the three levers a management team can pull — used to distinguish high-quality compounders (margin/turnover-driven ROE) from leveraged ROE that breaks in a downturn.

Practical Guidelines

  1. Read the Notes — Critical information is in the footnotes
  2. Look at Trends — Single year tells little; 5-10 year trends matter
  3. Compare Peers — Ratios vary by industry
  4. Cash Flow Over Earnings — Cash is harder to manipulate
  5. Beware of Adjusted Metrics — "Adjusted EBITDA" can be misleading
  6. Check Auditor Opinion — Qualified opinions are red flags
  7. Follow the Money — Insiders buying/selling tells a story

Next Steps