ARMFThe daily loss limit
The daily loss limit is a stop for the trader, not for the position. It protects not from the market but from the attempt to win back what was lost the same day: it is exactly in those hours that off-plan trades with an increased size are made. We take apart how to choose the figure and what to do once it is reached.
Why a separate limit for the day is needed
A stop-loss limits the loss of one trade. But the number of trades per day is not limited by anything, and at 1 % risk ten entries in a row give almost 10 % of drawdown — with the risk per trade rule formally observed to the letter.
The practical danger is not in the number of trades itself but in their nature. After two or three losses in a row the quality of decisions falls: entries «to win it back» appear, stops get shortened and the size grows. The daily limit breaks this sequence mechanically, before it begins.
| Risk per trade | A 2 % limit | A 3 % limit | A 5 % limit |
|---|---|---|---|
| 0.5 % | 4 stops | 6 stops | 10 stops |
| 1 % | 2 stops | 3 stops | 5 stops |
| 2 % | 1 stop | 1 stop | 2 stops |
The number of stops is rounded down: the limit counts as reached when the next full stop breaks through it. At 2 % risk and a 3 % limit the second stop takes you past the limit, so the buffer is one stop.
The three-trade rule and trading sessions
The well-known wording — «three losing trades in a row and the day is over» — is in essence the same daily limit, only expressed in trades rather than percent. At an equal share of risk the number comes out the same.
The version with winning trades sounds like this: while the trades are profitable you may continue; the first losing one after a winning streak ends the day. The logic is not to give back what was earned during the day, but the rule has a flip side — it cuts short the best days, and in a system with rare large moves those days give the bulk of the result.
What to do after the limit is reached
Not «have a look at what is happening», but close it. An open chart is an invitation to a trade that no longer fits the rules.
at onceWhile the details are fresh: the reason for the entry, where the stop stood, what went wrong. A day later it will be a reconstruction from memory.
the same dayMark the off-plan trades separately: they are reviewed differently from losing trades taken by the rules. The first is an execution mistake, the second is the normal work of the system.
10 minutesWithout compensation: the next day starts with the usual size, not with an increased one «to get yesterday back».
the next dayThe main sign that a limit is needed. If the journal contains days where the loss over twenty-four hours exceeds three or four ordinary stops, the limit is already necessary. Such days almost always consist not of planned trades but of attempts to fix the first two.
Daily, weekly and monthly limits on the round-the-clock forex market
One limit closes one scenario. The full construction has three levels, and each next one triggers less often but means a more serious conversation with your own system.
| Level | Typical value | What triggering it means | Action |
|---|---|---|---|
| Daily | 2-3 % | An ordinary streak of two or three stops | The trading day is over, review in the journal |
| Weekly | 5-6 % | The week turned out worse than usual | Half size until the end of the week |
| Monthly | 10 % | A result outside the usual spread | A check of the system on history before resuming |
| The drawdown limit | 20 % | The system is not working the way it was tested | A stop and a review of the rules |
The values in the table are multiples of the risk per trade and consistent with each other: at 1 % risk the daily limit equals three stops, the weekly one six and the monthly one ten. The multiple matters more than the exact figures: it makes the limits verifiable rather than decorative.
What must not be done after a limit is hit. Compensating for it the next day with an increased size. That turns a set of limits into martingale: the bet grows after a loss, and the limits stop restricting anything except the calendar.
Frequently asked questions
Which daily limit should you choose?
A practical reference is two or three ordinary stops. At 1 % risk that is 2–3 % of equity. A larger limit loses its point: it stops halting the streak before it turns into revenge trading.
Are weekly and monthly limits needed?
The weekly one is useful as a second line: for example, after losing 5 % in a week the size is halved until the end of the week. The monthly one is more often framed not as a stop but as a reason for review: a system that lost more than usual over a month is checked on history.
Should the limit be counted from the balance or from equity at the start of the day?
From equity at the start of the trading day: it is a fixed base known in advance. Counted from current equity, the limit would drift along with the loss, and the actual loss for the day would be larger than planned.
What to do with an open position if the limit is reached?
The rule has to be written in advance. A common version: the limit forbids new entries, while the open position is managed by its own rules — it already has a stop, and its loss is accounted for in the limit calculation.
When does the «trading day» start on a round-the-clock market?
By the time of your venue: the swap charge and the change of date in reports are tied to it. It is practical to tie the daily limit to the same moment: otherwise trades from one trading session end up in different days of the statistics.
Should the limit be counted on closed trades or including open ones?
By equity — together with the floating result. Otherwise the restriction will not work while a losing position stays open, and that is exactly the moment it is needed most.
Is a limit on the number of trades per day needed?
It is useful as a second restrictor, especially in intraday trading: it stops overtrading on days when the trades are formally not losing but are taken without a signal. The reference comes from the journal — the average number of entries on a normal day plus a buffer.
What if the limit was hit because of one large trade?
Find the reason: either the lot was not calculated by the formula or the stop was executed with slippage. In the first case the problem is in the calculation, in the second in the choice of trading time. The stopping rule applies either way.
What to do after a day closed by the limit?
Write the trades into the journal, mark which ones followed the plan, and return to trading in the next session with the usual size. Compensating yesterday's loss with a larger lot turns a set of limits into martingale.
Does a daily limit get in the way of long-term positions?
It should not, if the limit is counted by equity and includes the floating result. For swing trades it is usually complemented by a weekly threshold — otherwise the normal swings of an open position will keep closing the trading day.
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