Speed Resistance Lines

Speed Resistance Lines measures a swing and fans three rays of falling slope from its origin, the definitive clean implementation of speed resistance lines with automatic anchoring. In Auto mode the fan redraws whenever a swing leg completes, its end pivot confirming Swing Length bars after the extreme; Manual mode measures between Point A and Point B instead, optionally snapped to bar wicks.

How to Trade the Speed Resistance Lines?

• 2/3 speedline holds: a correction defended there preserves most of the trend's tempo, the cascade's primary line.
• Cascade breaks: losing the full line, then the 2/3, then the 1/3 downgrades the trend's rate step by step; the 1/3 giving way marks the pace as broken even while the swing extreme holds.
• Intrabar holds: a speedline tested within the bar closing back on the trend side shows the correction respecting the fan.
• Role-reversal retests: price returning to a broken ray and getting rejected at the close plays support-turned-resistance logic in fan form.

The fan is no better than the swing it measures; the markers show which leg was used.

Speed Resistance Lines Settings

• Anchor Mode (default Auto (Swings)): swing-detected or manual anchoring.
• Swing Length (default 25): bars each side confirming pivots in Auto mode; larger values anchor to bigger legs and re-anchor less often.
• Fan Direction (default Latest Swing): redraw on every completed leg, or keep Rising Only / Falling Only fans.
• Point A Time / Point A Price and Point B Time / Point B Price: the manual swing, set by clicking the chart.
• Snap to High/Low (default on): uses the anchor bars' wicks instead of the exact selected prices.
• Style: Speed Labels (default on), Fan Fill (default on), Anchor Markers (default on), Break Markers (default off), Line Width (default 1).

Frequently Asked Questions

How do speedlines differ from a Gann fan?

Does the fan repaint?

Which fraction matters most?