High Tight Flag (HTF)
Powerful continuation pattern: a 90–120% rally in 4–8 weeks followed by a tight 12-25% pullback.
The High Tight Flag is one of the most explosive bullish continuation patterns. Originally documented by William O'Neil, it requires extreme prior momentum and a textbook-tight consolidation.
The two phases
- Pole: a 90% to 120%+ price rally in just 4–8 weeks. This is the rare ingredient — most stocks never produce such a move.
- Flag: a sideways or slightly down consolidation, lasting 2–5 weeks, depth usually 10-25% (not deeper).
Volume should dry up in the flag (the same way it does in a VCP), and the breakout from the flag is typically on a sharp volume expansion.
Why it's so powerful
The combination of an extraordinary pole + a shallow, controlled pullback is a signature of institutional accumulation. It tells you that despite price doubling, large buyers are unwilling to sell — they're holding for higher levels. The "flag" portion is just absorption while late buyers and momentum chasers consolidate.
How Swing Edge detects it
The Breakout scanner looks for the pole gain (≥25–30%) in the last 8 weeks, then checks for a tight (flag depth ≤25%) consolidation in the most recent 2–5 weeks. Volume contraction and a Stage-2 trend are required confirms.
What can go wrong
- The pole was not extreme enough — a 30% rally in 8 weeks is just a regular trend, not an HTF candidate.
- The flag is too deep (over 25%) — that's a normal correction, not an HTF.
- The breakout has weak volume — likely a false break that will be rejected.