Folding rule: stacking three trendlines on an accelerating swing

How the three rays are stacked

The folding rule is a three-ray trendline construction drawn through successive local extremes as a swing steepens. On an accelerating advance, successive support trendlines are drawn through later local lows, each steeper than the last, until three rays are in place. The inverse construction uses successive resistance trendlines through later local highs on an accelerating decline.

An accelerating structure is a swing in which each newly drawn support or resistance trendline is steeper than the one before it. The construction is described as appearing after unusually steep swings, a setting in which calculated technical indicators are treated as uninformative relative to the raw trendline geometry.

Two separate breakout events

The primary breakout event is price leaving the third ray, the steepest of the three trendlines. That third-ray breakout is treated as the end of the accelerating phase and the moment a directional hypothesis is written.

After the third ray is penetrated, the first ray is extended as a later consolidation or polarity reference. A later crossing of that first-ray extension is treated as a second, separate breakout event.

When a construction is balanced

A construction is called balanced when the angles between consecutive rays are nearly equal and the rays have more comparable length and more local extremes. Unequal angles are treated as a reason not to read early candle color as a new trend.

The fan triangle counterpart

The same three-trendline breakout logic is compared with a classical slowing-market fan. In that fan triangle, successively flatter lines form a triangle-like contraction, and the third-line break marks a failed attempt to continue the prior trend.

Confirm the third ray, not an earlier candle pattern

On an hourly British pound sequence, a failed head-and-shoulders reading is set beside the three-ray structure. The comparison shows that a classical hourly pattern can resolve incorrectly. The third-ray penetration, not the earlier candle pattern, is the event used to confirm the folding-rule hypothesis.