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Double Bottom

Double Bottom / W Bottom

BeginnerReversal PatternsBullish (Up)Reliability 75%

Pattern Formation

66 / 66 candles
1,1271,0781,02998193288301/0101/0901/1701/2502/0202/1002/1802/2603/05
Speed

Statistics

Target Hit Rate
66%
Average Move
20%
Failure Rate
11%
Avg Formation Days
64 days
Volume Confirmation Boost
+14%

Reference values based on Bulkowski's "Encyclopedia of Chart Patterns". Data is primarily from U.S. markets and may differ for other markets.

A reversal pattern that forms two valleys at approximately the same price level near the end of a downtrend. The second valley fails to break below the first, and an upward breakout through the neckline completes the pattern. Its shape resembles the letter 'W'.

Formation Conditions

  • A clear downtrend must precede the pattern
  • The two lows must be at approximately the same price level (within 3% tolerance)
  • A peak (neckline) must exist between the two valleys
  • Volume at the second low should decrease compared to the first, with volume increasing on the rally
  • Price must clearly break above the neckline

Entry Condition

Enter long when price clearly breaks above the neckline on a closing basis. Waiting for a retest (pullback to the neckline) provides greater certainty.

Target Calculation

Project the distance from the neckline to the valley lows upward from the neckline breakout point. For example: neckline at 1000, valley at 900, target is 1100.

Stop Loss Rule

Place a stop-loss slightly below the second valley's low (1-3% below). If entering after a neckline retest, it can also be placed slightly below the neckline.

Volume Profile

Ideally, high volume at the first valley, decreasing at the peak, and lower volume at the second valley compared to the first. A volume surge at the neckline breakout enhances reliability.

False Signal Detection

  • If the two valleys differ significantly in depth (over 5%), reliability is low
  • A neckline breakout without volume may be a false signal
  • Do not mistake a temporary bounce within a strong downtrend for a double bottom
  • If the interval between valleys is too short (within a few days), reliability is low
  • The pattern is less effective in a broadly bearish market environment

Related Indicators

RSI (divergence confirmation)MACDVolumeStochastics

Related Patterns

Double TopHead and ShouldersInverse Head and ShouldersTriple Top

Learn More

View in Cheatsheet →View Glossary →