Price Channel
Quick Definition
A chart pattern formed by drawing parallel lines along a security's highs and lows, defining the range within which price has been trending.
Key Takeaways
- Price channels are parallel trendlines along highs and lows that define the trading range and trend direction.
- Buy at lower channel support, sell at upper resistance — breakouts target the channel width projected from the break.
- Channel validity increases with more touches of both lines; the midline often acts as secondary support/resistance.
What Is Price Channel?
A Price Channel is a technical chart pattern created by drawing two parallel trendlines that contain a security's price action — one connecting the highs (resistance line) and one connecting the lows (support line). The channel defines the boundaries within which the price has been moving and provides a framework for trading decisions. An ascending channel has upward-sloping parallel lines (bullish trend with higher highs and higher lows), a descending channel has downward-sloping lines (bearish trend), and a horizontal channel indicates a range-bound market. Traders use channels in several ways: buying near the lower channel line (support) and selling near the upper line (resistance) for swing trading; trading breakouts when price closes convincingly above or below the channel; and measuring the channel width to project breakout targets. The midline of the channel often acts as a secondary support/resistance level. Channel validity is strengthened by multiple touches of both the upper and lower lines. Donchian Channels (based on highest high/lowest low over a period), Keltner Channels (based on ATR), and Bollinger Bands are quantitative variations of the price channel concept.
Price Channel Example
- 1The stock traded within an ascending channel for four months — the trader bought each time price touched the lower channel line at support and sold at the upper line, capturing 5-7% swings three times.
- 2After trading in a descending channel for six months, the stock broke above the upper channel line on high volume — the breakout target (channel width projected upward) was reached within two weeks.
Related Terms
Trend Line
A diagonal line drawn across price highs or lows to identify the prevailing trend direction and potential support/resistance.
Support and Resistance
Key price levels where buying pressure (support) prevents further decline or selling pressure (resistance) prevents further advance.
Donchian Channel
A technical indicator that plots the highest high and lowest low over a specified period (typically 20 days), forming a channel used for breakout trading and trend identification.
Keltner Channel
A volatility-based envelope indicator using an EMA centerline with upper and lower bands set at multiples of the Average True Range (ATR).
Moving Average
A calculation that averages a security's price over a specific number of periods, smoothing price data to identify trends.
Relative Strength Index (RSI)
A momentum indicator measuring the speed and magnitude of price changes on a 0-100 scale, used to identify overbought or oversold conditions.
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