Partials at 2R and trailing
Lesson 18 · about 10 min
The year-shape lesson in Module 1 made the point that a few large winners carry the result. This lesson is about how to hold them long enough to become large without giving back the ordinary ones. The mechanism is simple: bank part of the trade at a fixed multiple of risk, then let the rest ride behind a trailing stop that only tightens.
The partial at 2R
When the trade reaches 2R (unrealised profit equal to twice the initial risk), sell one-third to one-half of the position and move the stop on the remainder to break-even.
Why 2R rather than 1R or 3R:
- At 1R, you are locking in a winner that is only as big as a loser; the math needs winners to be larger than losers.
- At 3R, many trades that reached 2R will have reversed before getting there. With a 50% win rate, the difference between 2R and 3R partials is mostly winners that never banked anything.
- At 2R, the banked portion plus a break-even stop on the rest guarantees the trade closes at a minimum of roughly 0.7R to 1R. That floor is what lets you hold the remainder without anxiety.
The "one-third to one-half" range is a preference. One-third if the regime is green and the setup is a breakout or gap-and-hold, where the trail is likely to run. One-half if the regime is amber or the trade is a reclaim into resistance.
Worked outcome table
Entry $60, stop $57, risk $3 per share, 100 shares. Partial of 50 shares at $66 (2R). Stop on the remaining 50 moved to $60.
| What happens next | Banked | Remainder result | Total R |
|---|---|---|---|
| Reverses to break-even stop | +$300 | $0 | +1.0R |
| Trails out at $69 (3R) | +$300 | +$450 | +2.5R |
| Trails out at $75 (5R) | +$300 | +$750 | +3.5R |
| Never reaches 2R, stops at $57 | $0 | −$300 | −1.0R |
The important row is the first one. A trade that reached 2R and then fully reversed still made 1R. Without the partial, the same trade would have been a break-even or a small loss.
Trailing the remainder
There are two trailing methods in the playbook. Pick one per trade, in advance, and write it in the journal.
Method 1: the 10/20 EMA trail. After the partial, the stop on the remainder sits under the 20 EMA on a closing basis. When the trade has run at least 3R, tighten to the 10 EMA. Exit on the first daily close below the chosen average.
Method 2: swing lows. After each new higher swing low forms (a low with at least two higher lows on either side), move the stop to just under it. This is slower and gives more room, suited to breakouts in green regimes.
Method 1: EMA trail Method 2: swing-low trail
____/
___/‾‾ ____/
__/‾‾ <- 10 EMA __/‾‾
__/‾‾ <- 20 EMA __/‾‾ \_/ <- stop under each
/ exit on close below / higher low
| Trailing method | Best for | Gives back at the end | Typical exit R |
|---|---|---|---|
| 20 EMA close | Pullbacks, reclaims | About 1 ATR | 2 to 4R |
| 10 EMA close | Runners past 3R, gap-and-hold | About 0.5 ATR | 3 to 6R |
| Swing lows | Breakouts in green regimes | 1 to 2 ATR | 3 to 8R |
| Fixed target only | Mean reversion | None | 2 to 2.5R |
Key idea: Bank a third to a half at 2R, move the stop on the rest to break-even, and then trail it with an average or under swing lows. The partial pays for the patience the trail requires.
Rules for the trail
- Stops only tighten. Once moved to break-even, never back. Once under a swing low, never lower.
- Closing basis for EMA trails. An intraday dip under the 20 EMA is not an exit; a close under it is. Place the actual order the next morning, or use a stop just under the EMA value each night.
- Do not sell the remainder at a target. The remainder is there to catch the outlier; a fixed target on it defeats the purpose. The exception is mean reversion, which has no remainder.
- Do not add the partial back. Re-buying the shares you sold at 2R because the stock kept going is chasing.
When to skip the partial
If the first target is under 1.5R away and the stop is tight, the partial happens too early to matter. In that case, hold the full position with the stop at break-even after 1.5R and trail the whole thing. This is the exception; the default is the 2R partial.
The psychological point
Partials exist because holding a full position through a pullback after a big run is, for most people, impossible. They sell everything at the first scare. A banked partial changes the question from "will I lose all this profit?" to "will the remainder catch a runner?" That is a question you can sit with for two weeks. Design the process for the trader you are on a bad day, not the one you are on a good one.
Try it: Take your largest winner of the last year, or a hypothetical one from a chart. Apply the 2R partial and the 20 EMA trail. Compute the total R. Then compute it with a full exit at 2R, and with no partial and the trail only. Note which version you would actually have been able to hold.
Recap
- At 2R, sell a third to a half and move the remainder's stop to break-even.
- A trade that reached 2R then reversed still closes around +1R; that floor is what makes holding possible.
- Trail the remainder with a close below the 20 EMA (10 EMA past 3R) or under successive swing lows; choose in advance.
- Stops only tighten; EMA trails use closes; never re-buy the partial.
- The process is designed for the trader you are on a bad day.
See it drawn
Original diagrams for the ideas on this page. Illustrative, not real market data.