Level 2 · Lesson 11 / 15 · English
Chart Patterns
3 min reading · Exercises take additional time
0 of 15 lessons completed for this visit
Triangles, double tops and bottoms, flags and head-and-shoulders are names for selected arrangements of swings. They help describe compression or failed continuation, but pattern boundaries and outcomes require explicit rules.
What you will learn
- Describe major pattern families
- Define completion and failure
- Recognise projection uncertainty
Illustrative educational chart · Not live market data
Geometry and context
A triangle has narrowing swing boundaries under a selected anchor method. A double top has two comparable highs separated by a meaningful pullback. A flag is a smaller consolidation after a larger move. Similar-looking drawings can occur in very different volatility and timeframe conditions; the name alone does not establish an edge.
Completion is a rule choice
For a double top, a close below the intervening low is one common completion rule. Before that event, price may simply be ranging. A projected target based on pattern height is a heuristic, not a destination the market owes you. Different definitions produce different historical samples and results.
Reduce hindsight bias
State the minimum separation, tolerance, breakout condition and failure rule before collecting examples. Include failed and incomplete patterns. Stop and target distance, costs and actual order availability matter as much as geometry. Do not test a pattern using future bars that would not have been available at the decision time.
Key terms
- Neckline
- A selected intervening boundary used in some reversal-pattern rules.
- Measured move
- A heuristic projection based on a prior pattern distance.
Hypothetical worked example · Not live market prices
Worked chart study · Chart Patterns
- Two highs are 1.1200 and 1.1195; the intervening low is 1.1100.
- Under a close-below-neckline rule, 1.1080 completes a double-top description.
- Height ≈ 0.0100 gives an illustrative 1.1000 projection from 1.1100, not a promised target or recommended trade.
| Observation | Illustrative value / meaning |
|---|---|
| Top area | Near 1.1200 |
| Intervening low | 1.1100 |
| Heuristic projection | Near 1.1000 |
Simplified educational calculations. Costs, slippage and provider-specific adjustments apply where relevant; these are not actual returns.
Common mistakes to avoid
- Changing the stated chart rule after seeing the outcome instead of recording a new test.
- Treating a historical description as a guaranteed future result or ignoring execution costs.
- Skipping the timeframe, source or invalidation condition before drawing a conclusion.
Lesson summary
Triangles, double tops and bottoms, flags and head-and-shoulders are names for selected arrangements of swings. They help describe compression or failed continuation, but pattern boundaries and outcomes require explicit rules. Use an explicit rule, consider contrary evidence and practise without risking real money.
Practical exercise
Specify a double-top tolerance and completion rule. Create a failed example in which price breaks above both tops.
Knowledge check
Check your understanding
Results apply to this attempt only and are not saved to a student account. No certificate is issued.
Answer all questions correctly and complete the exercise. Progress follows you between Academy pages for this visit only; it is not saved to an account and resets on reload.
Related lessons
Financial education, not personal investment advice. Leveraged Forex and CFDs can lead to substantial losses. Demo practice and correct quiz answers do not guarantee trading success.