What Is a Worked Example of Break Of Structure?

Direct answer

A worked example of Break Of Structure is a step-by-step scenario that shows how you identify a prior swing level, define the “break,” and then describe what conditions would invalidate the interpretation. The key is to state assumptions up front (for example: what counts as a swing high/low, what exact price field you use, and whether you require a candle close).

Mechanism or definition

Break Of Structure (often abbreviated as BOS) is a way to describe a change in market structure: price moves through a previously defined swing level in a way that suggests the prevailing short-term direction has shifted.

To make any example verifiable, you must separate stable mechanics from variable conditions:

• Stable mechanics (the same in any market):
  1. Pick a swing definition (e.g., a swing high is higher than the two neighboring highs; a swing low is lower than the two neighboring lows).
  2. Choose the “break” rule (e.g., require a candle close above/below the swing level, not just an intrabar touch).
  3. Decide what “structure shift” means in your example (e.g., after the break, you update the relevant swing levels).
• Variable conditions (can change outcomes even with the same mechanics): execution timing, transaction costs, chart data source, and the trader’s exact interpretation rules.

Material limitation built into the concept: different people implement BOS with different definitions (swing detection and close rules). That means the same chart can produce different “breaks” depending on assumptions.

Evidence or example (worked scenario with explicit assumptions)

Assume we are analyzing a sequence of 1-hour candles and only use candle closing prices.

Assumptions (state these so the example can be checked independently):

1. Swing definition: A swing high is any close-to-close neighborhood peak where the swing high value is strictly greater than the two immediately neighboring highs. A swing low is strictly less than the two immediately neighboring lows.
2. Break rule: A bullish break occurs only when a candle closes above the most recent swing high level. A bearish break occurs only when a candle closes below the most recent swing low level.
3. Look-back: We only consider the last clearly identified swing level on the chosen chart.
4. No real-time data: we use the following fixed numeric closes.

Step 1 — Identify the reference swing high. Let the most recent swing high level be H = 1.2000. (This means, by assumption 1, it was the last verified swing high before the next candles.)

Step 2 — List candles after that swing. Use these candle closing prices:

• Candle A close: 1.1988
• Candle B close: 1.1996
• Candle C close: 1.2010

Step 3 — Apply the break rule.

• Candle A and B closes are below H (1.2000), so no bullish BOS yet.
• Candle C closes at 1.2010, which is above H (1.2000). Therefore, under assumptions 1–2, a bullish BOS is triggered at Candle C.

Step 4 — State what would invalidate the structure interpretation (limitation-aware). In practice, traders often discuss “invalidation” as price returning back through the broken level. For a verifiable rule in this example, define invalidation as:

• Invalidation rule for the bullish BOS: if a later candle closes back below H (1.2000), the structural bullish interpretation is considered weakened or invalid under this simplified rule.

Now add two more fixed closes:

• Candle D close: 1.2022
• Candle E close: 1.1997 Since Candle E closes below 1.2000, the simplified bullish BOS interpretation would be invalidated by the rule in assumption 4.

What this worked example demonstrates (without promising outcomes):

• The “break” event depends entirely on your chosen reference level and your close-based rule.
• The interpretation can be weakened or negated by later closes, even if the initial BOS was correctly identified.

Limitations and risks

1. Definition ambiguity can change the result. If your swing-high/low detection differs (for example, using different neighboring bars), the reference level H changes, and the BOS event may move or disappear.

2. Candle close vs. intrabar touches. Requiring a close above/below is stricter than reacting to wicks. A market can “tap” a level without producing a BOS under a close-based rule.