Daily loss limit: how to define your daily loss cap
A daily loss limit caps a loss measurement over a defined daily period. Specify the amount, calculation reference, included results and reset time. A percentage alone is not enough.
In this guide
Start with the formula
Write the rule as a complete sentence: “my loss is measured from this reference, over this period, including these components”. A rule based on the day’s opening balance is not identical to a trailing rule from a peak. Overall account drawdown is another separate constraint.
For a fixed reference, the monetary budget equals reference capital multiplied by the chosen percentage. That multiplication alone does not yet describe how losses are measured in real time.
A worked example, not a recommended threshold
With an illustrative €10,000 reference and 2% limit, the budget is €200. Suppose your formula adds €80 of net closed losses, €70 of floating losses and €10 of costs not already included. The measured loss is €160, leaving €40 before the cap.
Do not count fees twice if reported results are already net. This example assumes an unchanged reference and no other adjustment. It does not automatically reproduce your broker’s, prop firm’s or software’s calculation.
How should you choose your own limit?
There is no universal percentage to copy. Consider position risk, the number of planned opportunities, observed loss sequences and what you can actually afford to bear. If the budget cannot accommodate the estimated loss of a single position, review the plan before entering.
An external constraint is not a loss target. With a prop firm, distinguish your personal stopping rule from the contractual threshold. Do not operate right against a cap without considering costs and execution uncertainty.
Understand the reset
Define the time and time zone. Midnight where you live may be a different server time. Seasonal clock changes and positions carried through reset can also make comparisons misleading.
FTMO documents, for example, the inclusion of open positions, commissions and swaps in its daily-loss measurement. Always check the current rule for your programme instead of relying on a remembered percentage or another offer’s rule.
Validate the rule before the session
- What is the exact reference?
- Are floating losses and realised profits included?
- Are fees already included in the input data?
- When does the counter reset?
- What happens when the limit is reached?
Check examples in a demonstration environment where possible. Do not deliberately open risky live positions merely to test a limit trigger.
From calculation to enforcement
Once the rule is defined, the next challenge is monitoring it during the session. Staying within daily drawdown explains remaining headroom and a stopping procedure.
SentinelleTrader lets you configure a drawdown cap in its risk settings. Check how the tool’s measurement corresponds to your external constraint: matching percentages do not guarantee matching calculations. See the product presentation and the FAQ.