Double Bottom Breakout Scanner
Automated real-time scanner detecting classical Bullish Double Bottom (W Pattern) setups, neckline resistance breakouts, and retests across Indian equities.
How to Trade the Double Bottom (W Pattern) Strategy
The Double Bottom (often called the W Pattern) is one of the most reliable classical bullish reversal chart patterns in technical analysis. It signals the exhaustion of a prior downtrend and a decisive shift in control from sellers to buyers as smart money accumulates shares at key support zones.
1. Pattern Anatomy & Identification
A valid Double Bottom requires a clear prior corrective downtrend (≥ 4% to 12%+ decline). The price hits the first trough (L1), rebounds to create an intermediate swing peak (Neckline H), and then pulls back to test the support zone (L2). Both troughs must align closely (≤ 4.5% divergence or ≤ 1.2 ATR), forming a distinct 'W' shape.
2. Volume Expansion Confirmation
Institutional volume is the lifeblood of a true breakout. Ideal W patterns exhibit contracting volume during the formation of the second trough (L2), followed by a massive surge in volume (≥ 1.25x - 2.0x 20-day Volume SMA) when the daily candlestick closes decisively above the neckline resistance.
3. Measured Move Target Formula
The classical price target is calculated by measuring the vertical depth of the W structure:
Pattern Height = Neckline Price - Min(L1, L2)
Target Price = Neckline Price + Pattern Height
4. Dual Stop Loss Models & Risk-Reward
Structural Stop Loss: Placed safely below the lowest point of the pattern: Min(L1, L2) - 0.5 ATR.
Tight Breakout Swing Stop: For confirmed breakouts, aggressive momentum traders place the stop below the low of the breakout day candle or just underneath the reclaimed neckline. Only enter trades with R:R ≥ 1:1.5.
5. Breakout vs Retest Entry Execution
Enter on the market close or next-day open when the stock closes firmly above the Neckline on high volume. Advantage: Never miss runaway momentum rallies.
Wait for the stock to pull back into the prior neckline (former resistance acting as new support) on lower volume. Advantage: Tighter stop loss and superior Risk-to-Reward ratio.