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TREND CHANGE / STRUCTURAL OVERLAP / REVERSAL

Detecting a Trend Change With Structural Overlap

A trend does not change simply because momentum pauses. This framework looks for a break of the last meaningful correction and a large overlap of the prior segment before treating reversal as a serious candidate.

10 MIN READMARKET STRUCTUREENGINEERING NOTES

Trend continuation has a structural condition

In an uptrend, the source expects higher advances while meaningful corrective lows remain intact. In a downtrend, the mirrored condition applies to corrective highs. Merely failing to make a new high is not treated as enough evidence that the trend changed.

The last meaningful correction is the key reference

The lesson's main reversal clue is a break through the level of the last significant correction. For an uptrend, that means the last meaningful corrective support is overlapped downward; for a downtrend, the last meaningful corrective resistance is overlapped upward.

The source uses a 90% overlap rule

Its pattern requires at least roughly 90% overlap of the preceding segment, preferably complete overlap. Importantly, that measurement is described using candle bodies on the timeframe being analyzed, not an isolated wick.

Source-specific rule

The 90% threshold belongs to this framework. It should be exposed as a configurable strategy parameter rather than treated as a universal market constant.

Manipulation / false-break context comes first

In the bearish-to-bullish example, price first attempts to continue the existing downtrend by breaking lower, then reverses quickly and overlaps the prior decline. The source treats that failed continuation as part of the reversal structure rather than looking only at the final breakout.

Retest becomes a decision point

After the structural overlap, the lesson often expects price to correct back toward the area from which the previous correction developed. That retest can become a later decision point, but the source also acknowledges that markets do not always produce the ideal textbook sequence.

State-machine version

TREND_ACTIVE → FAILED_CONTINUATION → STRUCTURAL_OVERLAP >= threshold → REVERSAL_CANDIDATE → optional_retest → CONFIRMED / INVALIDATED
Important: This article adapts the supplied educational material into engineering-oriented notes. The rules described are the source author's framework, not universal market laws or a guarantee of trading results.
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