Tools to understand your money
Free educational tools for self-directed investors — calculators and explainers to help you understand your money.
Practice
Make real investing decisions against market history — no money at stake.
The Investor's Edge: Candlestick & Indicator Practice
Learn to read candlestick charts and indicators through ten levels of interactive pattern-recognition practice on real historical market data.
Time Machine: Historical Paper Trading
Paper-trade real historical markets with $10,000 of virtual cash. See how you actually behave when prices move — and what that tells you about yourself.
Foundations
Core concepts every investor should understand.
Hidden costs
What might be eating your returns without you noticing.
Mindset
How you think about money, risk, and time.
Allocation Lab
Walk a 10-year asset allocation, one quarter at a time. See how your decisions compared to your stated plan.
Concentration Mirror: What Your Biggest Position Reveals
Audit your single largest position to surface what your concentration is actually saying — conviction, inheritance, drift, or emotional attachment.
Simplicity Audit: Is Your Plan More Complex Than You Are?
Audit your current investing approach against your actual temperament — surfaces where plan complexity matches you and where it doesn't.
Hype or Thesis? Where This Idea Came From
Audit one investment idea to surface how you actually relate to it: as your own thesis, borrowed reasoning, trust in the source, or a position you've drifted into.
Risk Tolerance vs Time Horizon
See where your gut reaction to risk and your time horizon agree — or diverge.
Your Market-Drop Plan
Turn 'what would I do if the market dropped?' into a personal if-then rule that fits the kind of investor you are — written calmly, in advance.