Master the Markets. Invest with Purpose.
Free, plain-English guides to investing and finance concepts, case studies breaking down major market events, and free calculators, Excel models, and formula sheets. Free to read, no sign-up required.
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Markets & Macro
The big-picture forces driving economies and markets.
Stocks & Equity Investing
What a stock is, how to value it, and what moves equity prices.
Fixed Income & Rates
Bonds, yields, and the interest-rate environment that prices them.
Derivatives & Options
Hedging, leverage, and optionality.
Alternatives & Crypto
Beyond stocks and bonds: real assets, private markets, and digital assets.
Analysis & Valuation
Reading charts, models, and fundamentals to value what you own.
Statements & Forensics
Reading financial statements and spotting accounting red flags.
Portfolio & Strategy
Building portfolios, choosing strategies, and the vehicles to do it.
Risk & Psychology
Measuring risk and mastering the biases that drive decisions.
Trading & Operations
Order types, signals, and the mechanics of execution.
Corporate Actions & Tax
Dividends, splits, buybacks, and the tax treatment of it all.
Four levels, in order, from your first stock to advanced strategy.
What Is Inflation?
An essential guide to how inflation works, why it matters, and how investors can think about it.
Free tools & downloads
Investing Formula Sheet
100 finance formulas across 11 sections, in one clean PDF. Free to download.
CalculatorFIRE Calculator
Find the nest egg you need and the age you could retire.
CalculatorPortfolio Builder
Blend your assets and see the return and risk you'd get.
CalculatorCompound Interest
Project how your investments grow when returns compound.
CalculatorOptions Payoff
Build an options strategy and see its payoff diagram.
CalculatorPosition Size
Size a trade to the risk you set, and place the stop.
What markets are watching right now.
- 6 minBeginner
- 5 minBeginner
- 7 minIntermediate
- 6 minBeginner
- 8 minIntermediate
- 6 minIntermediate
- 7 minIntermediate
Where the research gets actionable.
IWP Concepts is the free reference. The Substack is where it goes to work: deep dives on 60 plus stocks with fundamental and technical analysis, the news that moves them, and a clear trade plan for each. Entry ranges for pullbacks and breakouts, stop-loss levels, and tiered targets, all built around risk. Updated every week.