What Is the P/E Ratio and When Does It Mislead You?
The price-to-earnings ratio is the most-cited valuation metric in investing. Here is what it measures, how to read it, and the five ways it can lead you astray.
Market Education
Learn how stocks, bonds and capital markets work. Explore plain-English explanations, worked examples and charts, then follow related coverage to connect market concepts with current events. Find your way around ECMSource.
How to Read an Earnings Report: Revenue, EPS, and Guidance
Learn to decode any earnings report: income statement structure, EPS beats and misses, forward guidance, and what actually moves stock prices.
What Is DCF? How Analysts Value Stocks Using Cash Flows
DCF analysis values a stock by forecasting future free cash flows and discounting them to today. Learn the formula, a worked example, and why assumptions matter more than the math.
How M&A Actually Gets Done: LOI to Closing Bell
Every M&A deal follows the same playbook — LOI, due diligence, regulatory clearance, and close. Here’s how each of the seven stages works and where deals fall apart.
How an IPO Actually Works: S-1, Bookbuilding, Greenshoe
From S-1 filing to first-day pop: how an IPO actually works, covering bookbuilding, the greenshoe stabilization option, and lock-up periods.
Sector Rotation: What It Is and How to Track It
Sector rotation is how smart money moves through the 11 S&P 500 sectors as the economy shifts. Learn which sectors lead in each cycle phase and how to track it.
How Short Selling Works: Short Interest & Squeezes Explained
Short selling explained — from borrowing shares to short squeezes. A clear, data-backed guide with historical examples, regulatory rules, and key metrics every investor should know.
Bond Pricing, Yield, Duration & Convexity Explained
Learn how bond prices move with interest rates, what duration really measures, and why convexity matters — with worked examples and real data.
GAAP vs. Non-GAAP Earnings: What Adjusted EPS Really Means
AMD posted $0.84 GAAP EPS and $1.37 adjusted EPS in Q1 2026—a 63% gap. Here’s what each number measures, what adjustments create the difference, and how investors should read both.
Options Greeks Explained: Delta, Gamma, Theta, and Vega
Learn how delta, gamma, theta, vega, and rho measure an option’s price sensitivity — with worked examples, real numbers, and charts.