What it is
The Double Bottom is a major bullish reversal chart pattern that resembles the letter "W". It forms when price makes two consecutive lows at approximately the same level, with a moderate peak (the "neckline") in between.
The pattern signals that sellers attempted to push price lower twice but failed both times at the same support level. This double rejection shows that buyers are stepping in at that level, and a breakout above the neckline confirms the reversal.
The psychology
The Double Bottom represents a dramatic shift in market psychology. After a downtrend, price reaches a low where buyers step in - this creates the first bottom. The subsequent rally fails at resistance (the neckline), and sellers push price back down.
Here's where it gets interesting: price returns to the same support level, but this time the selling pressure is weaker. Buyers who missed the first bounce are now waiting. When price fails to make a new low, it signals seller exhaustion.
The breakout above the neckline is the *moment of truth*. Shorts cover their positions, sidelined bulls jump in, and the previous resistance now becomes support. This combination creates the powerful move that typically follows a confirmed Double Bottom.
Identification
- 01Prior downtrend - Pattern must form after a meaningful decline
- 02Two distinct bottoms - Lows at approximately the same price level (within 3-5%)
- 03Clear neckline - Identifiable swing high between the two bottoms
- 04Neckline breakout - Price closes above the neckline with conviction
- 01Volume pattern - Higher volume on breakout, lower on second bottom
- 02Clear structural separation - A meaningful rally forms a distinct neckline before price returns to the support zone
- 03Second bottom higher - Slightly higher low shows buyer strength
- 04Bullish divergence - RSI/MACD divergence at second bottom
- 01No prior downtrend - Pattern in uptrend is continuation, not reversal
- 02Bottoms too close - No meaningful reaction or clear neckline forms between the two tests
- 03Second bottom much lower - Breaking first low invalidates pattern
- 04Low volume breakout - Weak volume suggests false breakout risk
Execution framework
Conservative: Enter on a close above the neckline with volume confirmation.
Aggressive: Enter on the retest of the neckline as support after initial breakout.
Place stop below the lower of the two bottoms. This is where the pattern is completely invalidated - if price makes a new low, the double bottom failed.
Measured Move: Project the height of the pattern (neckline to bottoms) upward from the breakout point. Alternative: Use prior resistance levels and Fibonacci extensions.
Double bottoms typically offer 1:2 to 1:3 R:R based on the measured move target.
Context matters
The Double Bottom is one of the most traded reversal patterns, but its success rate varies dramatically based on context. The quality of the prior downtrend, the depth and spacing of the two troughs, and the volume profile all determine whether it leads to a genuine reversal or a failed bounce.
- 01After a significant downtrend of at least 10-20% decline
- 02When the two bottoms test a well-established support zone
- 03Second bottom forms with declining volume and bullish RSI divergence
- 04The first reaction creates meaningful distance from support and a clear neckline before the second test
- 05Neckline break occurs on a clear volume surge
- 06Pattern forms at a Fibonacci retracement level from a larger uptrend
- 01In a shallow pullback rather than a meaningful downtrend
- 02When the two tests blend into one liquidity event without a distinct reaction or neckline
- 03If price barely bounces between the two troughs (no clear neckline)
- 04Against a dominant higher-timeframe downtrend
- 05When neckline break happens on low volume
- 06If the second bottom drops significantly below the first (likely continuation)
A double bottom with a higher second low (W pattern) is actually stronger than two equal lows - it shows buying pressure increasing.
Compare the full pattern set
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