Stocks
learning path.
From owning a share to challenging a valuation. Work through 18 lessons in order, or return to the stage that needs more attention.

Get the mechanics right
Build a vocabulary you can use without hiding behind it.
- A share is a slice of a business Beginner · 7 min
- Orders: price control versus execution certainty Beginner · 7 min
- Read the business behind the ticker Beginner · 7 min
- Price is visible. Value is an estimate. Intermediate · 7 min
- Dividends, splits and the total-return picture Beginner · 7 min
- Look inside the basket Beginner · 7 min
Connect the moving parts
Bring product structure, costs and decisions into the same explanation.
- Why good earnings can meet a falling share price Intermediate · 7 min
- Build a research note you can challenge Intermediate · 7 min
- Earnings quality: tracing profit into economic reality Intermediate · 8 min
- Balance-sheet resilience: surviving the calendar Advanced · 8 min
- Normalized cash flow: separating a harvest from a habit Intermediate · 8 min
- Valuation scenarios: making assumptions agree Advanced · 8 min
Challenge the comfortable assumptions
Study the situations where a simple model or confident narrative breaks down.
- Buybacks: per-share arithmetic versus value creation Intermediate · 8 min
- Short selling: the borrow is part of the position Advanced · 8 min
- Sector comparisons: why identical multiples are not equal Intermediate · 8 min
- Stock compensation: cash preserved, ownership shared Advanced · 8 min
- Beyond headline debt: pensions, leases and commitments Advanced · 8 min
- Capital allocation: growth that earns its keep Advanced · 8 min
Turn the lessons into a business explanation
Carry one fictional company through the path. Keep separate columns for operating profit, cash generated, financing obligations and shares outstanding. A rise in earnings per share can come from a smaller denominator; a rise in cash can come from borrowing. Neither observation alone establishes a stronger business. Trace the source of each change before choosing a valuation multiple.
Finish with a base case and an adverse case that use consistent assumptions. If growth requires investment, include that cash outflow; if funding needs new shares, carry dilution into the per-share result. Record what information is missing and which conclusion depends on it. A defensible range with visible gaps is more useful than a precise target whose inputs contradict one another.