Trailing Stop Ratchet
A mechanism that moves the trailing stop upward in discrete steps as a position gains profit — locking in progressively more of the move without ever allowing the stop to retreat.
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Explained Simply
A standard trailing stop trails price continuously at a fixed distance (e.g., 2% below the current high). A ratchet trailing stop moves in structured increments based on profit milestones. For example: once the trade gains 1R, ratchet stop to breakeven; once it gains 2R, ratchet stop to +1R; once it gains 3R, ratchet stop to +2R. Each ratchet step locks in a floor of realized gain and can never be undone — the stop only moves up, never down. This prevents the "round-trip" failure mode where a winning trade gives back all profits before the trailing stop fires.
Ratchet vs. Continuous Trailing Stop
A continuous trailing stop maintains a fixed percentage gap from the current high — as the stock climbs from $100 to $115, a 5% trailing stop climbs from $95 to $109.25. A ratchet trailing stop moves only when specific milestones are hit, then locks in a floor. In choppy uptrends where price oscillates around the high, a continuous trailing stop can be repeatedly grazed and triggered. A ratchet is immune to this: it only advances when profit clearly exceeds the next threshold, and the floor never retreats. The tradeoff is slightly lower capture ratio in straight-line moves, but far fewer premature stop-outs in volatile conditions.
How to Use Trailing Stop Ratchet
- 1
Define Your Ratchet Levels
A ratchet trailing stop moves in discrete steps rather than continuously. Define the ratchet levels before entry. Example: move stop to breakeven at 1R profit, to +0.5R at 1.5R profit, to +1R at 2R profit, to +1.5R at 2.5R profit. Each ratchet locks in more profit.
- 2
Implement the Ratchet
As the trade reaches each profit milestone, update your stop-loss to the corresponding ratchet level. Once moved, the stop never moves back — it only ratchets forward. This creates a staircase of guaranteed profit levels.
- 3
Benefits Over Continuous Trailing
Ratchet stops are less likely to be hit by normal pullbacks than continuous trailing stops. A continuous trail at 2 ATR gets tightened every tick. A ratchet only moves at major profit milestones, giving the trade more room to breathe between ratchets.
Frequently Asked Questions
What is a trailing stop ratchet?
A trailing stop ratchet moves your stop loss upward in discrete, locked steps as the trade hits profit milestones — and the stop can never retreat to a lower level. For example: stop starts at $98 on a $100 entry. Once the price reaches $101 (+1R), the ratchet moves the stop to $100 (breakeven). Once it reaches $102 (+2R), the stop moves to $101 (+1R). Each step is permanent, ensuring that a winning trade that later reverses cannot turn into a loss.
How is a ratchet stop different from a standard trailing stop?
A standard trailing stop moves continuously — it follows price tick by tick at a fixed distance. This means in a choppy uptrend, the stop can be grazed and triggered by minor pullbacks even though the trend is still intact. A ratchet stop only moves when price clears a specific milestone level, then locks in that floor permanently. It is resistant to normal noise-level pullbacks that do not represent a real change in the trade's condition. The tradeoff is that a ratchet captures slightly less in straight-line moves, but provides much more robust protection in volatile, choppy conditions.
What profit milestones should I use for ratchet stops?
Common starting points: move stop to breakeven at +1R profit, move stop to +0.5R at +2R profit, move stop to +1.5R at +3R profit. Each step should lock in roughly half of the accumulated profit at that milestone. The exact thresholds should be calibrated to your strategy's typical MFE distribution — if most winners peak at 2.5R before reversing, your ratchet steps should be sized to capture roughly 60–70% of that move by the time the trade approaches the typical peak.
Can a ratchet stop be combined with partial exits?
Yes — ratchet stops and scale-out work well together. A common combination: scale out 30% of the position at +1R (taking partial profit), then ratchet the stop on the remaining 70% to breakeven. Scale out another 20% at +2R, then ratchet the stop on the remaining 50% to +1R. The partial exits lock in definite profits while the ratchet ensures the remaining position cannot give back what has been locked in, providing both the certainty of partial profits and the upside participation of a runner.
How Tradewink Uses Trailing Stop Ratchet
Tradewink's DynamicExitEngine implements MFE-based stop ratcheting for all open day trade positions. As the position's MFE crosses configured profit thresholds (1% → breakeven, 2% → +0.5%, 3% → +1.5%, etc.), the trailing stop is stepped up automatically. Each ratchet triggers a broker stop order cancel-and-replace cycle to keep the live stop synchronized with the ratcheted level. The ratchet thresholds and step sizes are configurable per-user.
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