Operating Profit Margin: Formula, Examples, Scale Economics and Margin Expansion
Operating margin explained with the formula, operating income, EBIT margin, gross margin vs operating margin, operating leverage and common traps.
- September 15, 2026
- by Novalis
- 11 minutes read
- 31 Views
Return on Assets (ROA) Explained: Formula, Examples and What a Good ROA Really Means
Return on assets explained with the ROA formula, average assets, ROA vs. ROE and ROIC, asset turnover, leverage, sector differences and common traps.
- September 15, 2026
- by Novalis
- 10 minutes read
- 36 Views
Stock Beta Explained: Formula, Examples, CAPM and What Beta Really Measures
Stock beta explained with the formula, CAPM, regression beta, portfolio beta, leverage, volatility and the limits of using beta as a risk measure.
- September 15, 2026
- by Novalis
- 12 minutes read
- 27 Views
Price-to-Book Ratio Explained: Formula, Examples and the Value Trap
Price-to-book ratio explained with formulas, book value per share, tangible book value, ROE, bank examples and the classic low-P/B value trap.
- September 15, 2026
- by Novalis
- 12 minutes read
- 32 Views
Compound Interest Explained: Formula, Calculator, Examples and Why Time Matters
Compound interest explained with formulas, examples, monthly contributions, fees, inflation, the Rule of 72 and realistic investing assumptions.
- September 15, 2026
- by Novalis
- 13 minutes read
- 38 Views
Dividend Yield Explained: Formula, Examples and How to Spot a Yield Trap
Dividend yield is simple to calculate but easy to misread. Learn forward and trailing yield, payout coverage, ex-dividend mechanics and how to identify a yield trap.
- September 15, 2026
- by Novalis
- 13 minutes read
- 36 Views
EBITDA Explained: Formula, Example, Adjusted EBITDA and the Cash Flow Trap
EBITDA strips out interest, taxes, depreciation and amortization—but it is not cash flow. Learn the formula, worked examples, adjusted EBITDA and the traps investors miss.
- September 14, 2026
- by Novalis
- 11 minutes read
- 61 Views
Gross Margin Explained: What It Reveals About Pricing Power, Costs and Business Quality
Gross margin shows how much revenue remains after direct costs, but the number means very different things across industries. This guide explains the formula, worked examples, margin expansion, pricing power.
- September 14, 2026
- by Novalis
- 10 minutes read
- 54 Views
Price-to-Sales Ratio Explained: When P/S Helps—and When It Hides a Bad Business
The price-to-sales ratio is popular when earnings are negative, especially in software and growth stocks. This guide explains the formula, margin math, enterprise-value alternatives and the traps that make low.
- September 14, 2026
- by Novalis
- 10 minutes read
- 47 Views
PEG Ratio Explained: When Growth Makes a High P/E Cheap—and When It Doesn’t
The PEG ratio tries to fix the biggest weakness of the P/E ratio by adding growth. This guide explains the formula, worked examples, fair-value logic, growth traps and when PEG.
