<p>Neckline is a horizontal line drawn across the peaks of the two lower lows in a <a href="/NewSite/encyclopedia/head-and-shoulders/" class="ency-link">head and shoulders</a> or double bottom chart pattern. It serves as a dynamic support level, indicating the price level where buying interest is strong enough to prevent the price from falling further.</p>

<h2>How It Works</h2>
<p>The neckline is drawn by connecting the two peaks (shoulders) of the pattern. In a head and shoulders pattern, the neckline is drawn across the peaks of the two lower lows (shoulders), while in a double bottom pattern, it is drawn across the two troughs (bottoms). The neckline is considered a dynamic support level because it is not a fixed price level but rather a line that can move as the price action unfolds.</p>
<p>When the price breaks below the neckline, it signals a potential trend reversal, and the neckline then acts as a resistance level. Conversely, if the price breaks above the neckline, it confirms the continuation of the uptrend or a new uptrend in the case of a double bottom pattern.</p>

<h2>Why It Matters</h2>
<p>The neckline is a crucial element in identifying and trading head and shoulders and double bottom patterns. These patterns are widely used by traders to identify trend reversals and continuations. A break below the neckline can signal a potential trend reversal, while a break above it can confirm a trend continuation or reversal to the upside.</p>
<p>Trading based on neckline breaks can provide high-probability setups, as these patterns have a high win rate. However, like all technical analysis tools, necklines should not be used in isolation but rather in conjunction with other indicators and analysis techniques to improve the odds of success.</p>