Sigmoid Transition Trailing Stop

The Sigmoid Transition Trailing Stop rethinks the most familiar of trailing methods, the ATR stop. It trails below price in uptrends and above in downtrends, flipping when a close crosses it. But when price stretches too far from the level, the stop enters an adjustment phase and glides toward price along a sigmoid curve: slow at first, faster through the middle, easing off near the target. It still only ratchets with the trend; the S-curve just closes excessive gaps without harsh jumps.

How to Trade the Sigmoid Transition Trailing Stop?

• Green line and fill: bullish trend: the stop trails under price and acts as support.
• Red line and fill: bearish trend: the stop caps price and acts as resistance.
• Solid line: a sigmoid adjustment is live; the stop is compressing its distance to price.
• Transparent line: regular trailing mode, no adjustment running.
• Close through the stop: the trend flips and a fresh stop is placed at the current ATR distance.

An adjustment begins once the gap exceeds the original ATR threshold and ends when the transition completes or the stop hits its minimum safe distance. During pullbacks the level holds rather than loosening, so it stays consistent as a trailing exit or a stop-and-reverse trend reference.

Sigmoid Transition Trailing Stop Settings

• ATR Length: lookback for the volatility measurement behind the stop distance.
• ATR Multiplier: initial stop distance, in ATR units, whenever a new trend begins.
• Sigmoid Length (Bars): how many bars an adjustment phase lasts.
• Sigmoid Amplitude (ATR Units): the maximum ground the stop can cover during one adjustment.
• Min Distance (ATR Units): a volatility buffer the stop will not cross, guarding against noise exits.

Frequently Asked Questions

How is this different from a standard ATR trailing stop?

Which trading styles does it suit?

Is the Sigmoid Transition Trailing Stop free?