Chart Patterns 101: Triangles, Flags, and Head & Shoulders Explained

Chart Patterns 101: Triangles, Flags, and Head & Shoulders Explained

BullBearStock Editorial

March 6, 2026

Classical chart patterns still work—if you respect context. Learn how to trade triangles, flags, and head & shoulders with entries, invalidations, and targets.

Why Patterns Persist

Patterns visualize crowd behavior: compression, continuation, and distribution/accumulation. They’re frameworks for planning risk, not crystal balls. Combine them with trend context, volume, and volatility.

Clean sketches: symmetrical triangle, bull flag, head & shoulders (H&S), inverse H&S.

Clean sketches: symmetrical triangle, bull flag, head & shoulders (H&S), inverse H&S.

Triangles: Coiling Energy

  • Entry: Break of triangle boundary with volume.
  • Stop: Opposite side of the pattern or false-break low/high.
  • Target: Height of triangle projected from breakout.

Flags: Continuation After Impulse

  • Entry: Break of flag channel in direction of prior move.
  • Stop: Beyond the opposite flag boundary.
  • Target: Prior impulse length measured from breakout.

Head & Shoulders: Reversal Blueprint

  • Neckline Break: Confirmation of pattern; volume should expand.
  • Stop: Above right shoulder (H&S) or below (inverse H&S).
  • Target: Distance head-to-neckline projected from break.
H&S example with neckline, target projection, and invalidation.

H&S example with neckline, target projection, and invalidation.

Common Pitfalls

  • Forcing patterns in random chop.
  • Ignoring higher timeframe trend (countertrend patterns fail more).
  • Skipping volume confirmation on breakout.

Pattern Trading Checklist

  • Clear structure and boundaries?
  • Volume behavior supportive?
  • Defined stop and measured target?
  • Confluence with levels or moving averages?

Tags

technical analysis
patterns
triangles
flags
head and shoulders
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