What it can do
- Replay historical charts one bar at a time
- Practice entry and exit decisions
- Review positions and profit and loss
- Use notes and drawings for review
Concept
Chart Playback is not a course that teaches stock investing from the beginning. It is a practice tool for using learned knowledge and personal trading rules with historical charts, then reviewing your decisions.

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Reading about stocks alone can make it hard to practice what to decide at a given point on a chart. Repeating decisions with historical charts can help you notice your habits and the situations where you tend to hesitate.
This is not a general roadmap for stock trading. It is the practice flow Chart Playback is designed to support: learn, consider a rule, repeat decision-making practice and review with historical charts, then take what you notice back into practice.
Learn
Consider a rule
Practice with historical charts
Review
Repeat decision-making practice
Take the insight with you
Practice again
A live situation alone can make it difficult to sort out why a decision worked or where it went wrong. Repeating decision-making practice and review with historical charts can make those patterns easier to examine.
Try it first
You can try the main features without signing in. All displayed instrument names and price data are fictional samples.
Open Chart Playback