In a strong trend, price never rises (or falls) in a straight line. It regularly makes small pauses, consolidations, catch-your-breath moments. When these pauses take a recognizable form, we call them flags, pennants, or boxes (rectangles). These are continuation patterns — they signal that the main trend will resume after the pause. They're also among the most reliable and most actionable setups that exist.
Why they exist
After a strong directional move, traders who won take partial profits — which creates a small counter-pressure that temporarily stops the move. Traders who missed the initial entry wait for a better opportunity. Result: a horizontal range or slight counter-trend move for a few candles, followed by a resumption of the original trend once profit-taking is exhausted and late buyers step in.
This mechanic is universal. It exists on all timeframes and all assets.
The flag
Anatomy
A flag is a rectangular and slightly counter-trend inclined consolidation. Made up of two parallel trendlines:
- In an uptrend, the flag slopes slightly downward (peaks and troughs form "steps" downward).
- In a downtrend, it slopes slightly upward (controlled small rebound).
The "pole" of the flag is the strong directional move that preceded it.
The trade
Classic setup:
- Identify the pole: a clear and strong directional move.
- Identify the flag: a consolidation in a channel sloping slightly counter-trend, lasting a few candles (typically 5-20).
- Wait for the breakout of the upper trendline (in an uptrend) with volume.
- Enter on the breakout or on the retest of the broken trendline.
- Stop just below the flag.
- Target: the height of the pole projected from the breakout point. This is the typical statistical target, reached in roughly 65-70% of cases for a well-formed flag.
This is a simple, clear setup with often excellent risk/reward. If you had to learn just one continuation pattern, this would be it.
The pennant
Anatomy
Very similar to a flag, but the consolidation takes the form of a small triangle instead of a parallel channel. The trendlines converge instead of being parallel.
It's literally a mini-symmetric triangle at the end of a directional pole. Same interpretation as a flag: a pause before continuation. Same trading method, same target calculation.
Practical difference from a flag
Pennants are generally shorter than flags (typically 5-10 candles) and more compressive — the pattern "tightens" quickly. The breakout, when it comes, is often more explosive.
Pennants and flags work very similarly — don't kill yourself trying to distinguish them precisely. Both are small consolidations mid-trend that resolve in the direction of the trend.
The rectangle (box)
Anatomy
A horizontal consolidation between clear support and resistance. No slope, no convergence — just a flat range for a few candles.
It's the most "honest" continuation pattern in the sense that it hides nothing: both camps stabilize at fixed levels, and whoever breaks the range first triggers the move.
The trade
Same logic:
- Identify the rectangle after a clear directional move.
- Wait for the breakout (usually in the direction of the trend).
- Enter on the breakout + volume, or on the retest of the broken level.
- Stop at the other end of the rectangle.
- Target: the height of the rectangle projected from the breakout point.
Rectangles often form at the breakout of a major level — the market pauses just above (or just below) the level before continuing. These rectangles are particularly reliable.
Rules to get it right
Rule 1: a pole must really be a pole
Without a clear directional move before the pattern, it's not a continuation pattern — it's just a range. A flag not preceded by a 5-10% move isn't a flag.
Rule 2: the consolidation must be short
Typical flags and pennants last 5 to 20 candles. If your "flag" lasts 50 candles, it's no longer a flag — it's structural consolidation, with different characteristics and often less predictable resolution.
Rule 3: volume drops during the pause
In a "healthy" flag, volume gradually decreases during consolidation. It's a sign the market is calming and profit-taking is exhausted. At breakout, volume returns strong. If volume stays high throughout the flag, the pattern is less reliable.
Rule 4: don't force the identification
If you're not sure it's a flag, it probably isn't one. Good flags jump out at you. If you have to "convince" your eye it's a valid figure, move on.
Rule 5: beware of flags late in the trend
A flag that appears very late in a trend (after 5-6 successive directional moves without correction) is less reliable than a flag at the beginning or middle. The more mature the trend, the higher the reversal risk. Check the macro context of the coin before trading a late flag.
False breakouts
Like all patterns, the breakout can be false. Classic filters apply:
- Wait for the candle close on the other side;
- Volume at breakout significantly above average;
- Successful retest when possible.
Flags have a relatively low false breakout rate (because the trend carrying them is already established), but it happens. Never skip the checks.
In DYOR
DYOR doesn't explicitly detect flags/pennants/rectangles, but they're easy to spot visually on the detailed view of a coin. Once a flag is identified, you can:
- Place a price alert at the expected breakout level;
- Use Smart Setup if DYOR detects a confluence on the coin during consolidation.
To go further
- Trendlines — the building blocks for drawing a flag's trendlines;
- Triangles and wedges — the "big brothers" of pennants, over longer timeframes;
- Breakout strategy — a complete workflow around pattern breakouts.