Ticker&TapeThe high tight flag
The high tight flag is the rarest and most powerful base. A stock roughly doubles in a few weeks and then barely gives anything back. It is also one of the hardest patterns to trade.
What it looks like
First comes the pole: a huge advance of 100% or more in just 4 to 8 weeks, usually driven by big news such as a new product or explosive earnings. Then comes the flag: a short, tight sideways or slightly downward drift that corrects only 10% to 25% over about 3 to 5 weeks.
On a chart it looks like a flag at the top of a tall pole. The pause is small compared with the run before it.
Why it is so rare
After a stock doubles, most holders are sitting on big gains and are eager to sell. A normal stock would give back a large part of the move. When a stock instead holds near its highs, it means buyers are absorbing almost every share offered. Only a handful of stocks do this in a typical year, and usually only in strong markets.
Some of the biggest winners in market history started with a high tight flag. But many look-alikes fail, so the rules are strict.
The rules
The numbers here are strict, and that is the point:
- Pole: an advance of 100% to 120% or more in 4 to 8 weeks.
- Flag: a correction of 10% to 25%, no more.
- Flag length: about 3 to 5 weeks.
- Volume: heavy on the pole, drying up during the flag.
- Pivot: the highest price in the flag plus $0.10.
Trading it carefully
A high tight flag is volatile. Daily moves of 5% or more are normal, so a breakout can quickly turn into a sharp pullback. Many traders take a smaller position than usual and use the ATR to size it, so a normal swing does not exceed their planned risk.
Buy only as the stock clears the flag's high on heavy volume, within 5% of the pivot. If the flag corrects more than 25%, it is no longer a high tight flag; wait for a proper base to form.
How it appears on Ticker&Tape
The platform does not have a separate high tight flag label. Because the flag is shallow, it usually appears as a flat base (15% or less) or, if deeper, as a short base with a handle, with the pivot at the top of the flag.
Check the pole yourself: open the daily chart, measure the run from the low before the move to the high, and confirm it doubled in 8 weeks or less.
The rules of a high tight flag
| Pole | Up 100% or more in 4 to 8 weeks |
|---|---|
| Flag depth | 10% to 25% |
| Flag length | About 3 to 5 weeks |
| Volume | Heavy on the pole, drying up in the flag |
| Pivot | Flag high + $0.10 |
| Buy zone | Pivot to 5% above |
| Position size | Often smaller than usual because of volatility |
Common mistakes
- Calling any strong run a high tight flag without checking the 100% in 8 weeks rule.
- Accepting a flag that corrects 30% or more.
- Using a full-size position on such a volatile stock.
Key points
- A high tight flag is a 100%+ run in 4 to 8 weeks followed by a 10% to 25% rest.
- It is rare and powerful, but also volatile and easy to misread.
- Buy only above the flag high on heavy volume and size the position carefully.
Check what you learned
Answer at least 2 of 3 correctly to complete the lesson.
1. A stock rose 110% in 6 weeks, then corrected 35% over 4 weeks. What is it?
The rules are strict: the flag must correct only 10% to 25%. A deeper pullback means the pattern is no longer a high tight flag.
2. Why do many traders take a smaller position than usual in a high tight flag?
Sizing the position with the ATR keeps a normal swing inside the planned risk.
3. Why is it a sign of strength when a stock that just doubled barely pulls back?
Normally a stock gives back a large part of such a move. Holding near the highs means demand is soaking up the selling.
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