Volatility-Based Stop

Instead of using a static price or simple percentage, a volatility-based stop uses technical indicators that map the "envelope" of normal market activity. When price breaks outside of this envelope, it serves as a statistically significant signal that the current trend has exhausted itself.

• Bollinger Bands: You might place a stop loss outside the lower band (for long positions). If the price closes outside this "volatility boundary," the momentum is officially broken.
• Keltner Channels: Similar to Bollinger bands but use ATR for the channel width, making them more robust in trending markets.
• Donchian Channels: These track the highest high and lowest low over a period; exiting when the price breaches the opposite side of the channel is a classic breakout/reversal stop strategy.

The primary advantage here is objectivity. You aren't guessing where the trend ends—you are letting the market's own internal volatility math tell you when the trade is no longer valid. This approach is highly effective for systematic traders who need repeatable, rules-based exits.