Trailing drawdown: why an account in profit can still breach its loss limit

A trailing drawdown rule raises an account's loss threshold as a specified reference reaches new highs. If the account later loses value, the threshold does not move back down. The reference might be the highest equity observed during a session or the highest balance recorded at a daily cutoff. That choice changes the result.

Here is the counterintuitive part. Start a hypothetical account at $50,000 with a $2,000 trailing allowance. If its equity reaches $53,000, an uncapped intraday rule puts the threshold at $51,000. Equity falling to $50,900 then breaches that threshold, despite remaining $900 above the starting value.

This guide concerns account rules used in trading programmes, including evaluations. It does not describe a broker order. The examples define three simple mathematical models; the later rulebook section shows why a particular provider's terms can differ. The dollar amounts illustrate mechanics and are not recommended account sizes or risk budgets.

In our examples, balance records closed trading results. Equity adds the current profit or loss on open positions. With a $50,000 balance and $3,000 of open profit, equity is $53,000. Closing the position at that value transfers the profit into balance; it does not create another $3,000 of equity.

The high-water mark is the highest value of the chosen reference so far, including the starting value. Current drawdown from an equity peak is peak equity minus current equity. Remaining loss room is current equity minus the applicable threshold. One measures the retreat already experienced; the other measures the distance still available before a boundary.

At $50,900 equity with a $53,000 peak and a $51,000 threshold, drawdown is $2,100 and remaining room is −$100. Neither number is the account's profit since opening. Real rulebooks can incorporate commissions, swaps and other adjustments into their monitored value; our paths omit those costs so the arithmetic stays visible.

All three models start at $50,000 with a fixed $2,000 allowance and an initial $48,000 threshold. They differ in what can raise that threshold. None lowers it after a loss. In these models, equity is checked at every observation, including between daily cutoffs.

For the end-of-day model, the starting balance remains the reference until a higher qualifying close occurs. A lower close cannot erase an earlier high. For the intraday model, an open-profit spike can raise the floor even if that profit is never realised.

We count equity at or below the threshold as a breach and keep that first breach recorded. We do not cap the trailing threshold. These are explicit model assumptions, not universal programme terms: verify equality, caps and the exact reference in the applicable rulebook.

Follow one hypothetical session before its daily cutoff. No trade has closed yet, so the balance stays at $50,000. Open profit first grows, then shrinks. Only the intraday threshold follows that temporary equity high.

The last row has three simultaneous facts: the account is up $900 from its start, it has fallen $2,100 from its equity peak, and it is $100 below the intraday floor. Looking only at closed trades or the starting balance would miss the breach.

A subsequent recovery does not undo the recorded event. The shared path in the calculator can continue for comparison, but that continuation does not imply that a breached real account would remain available for trading.

Start with the open-profit scenario and advance to the $50,900 observation. Compare the equity, threshold and remaining room for each rule. Then select the end-of-day scenario: the $51,500 close raises its EOD floor to $49,500, which the following session's $49,400 equity breaches.

The observations are hypothetical, not a forecast or a replay of a trading account. Positions are flat at the marked daily closes. No fees, payouts, threshold caps, separate daily limits or execution process are modelled. Lines between observations do not add unobserved trades or market data.

Two clocks matter: the time when the threshold is recalculated and the times when the account is tested against it. In our EOD model, a $51,500 closing balance sets the next threshold at $49,500. During the next session, that floor remains active even before another close is recorded.

If equity reaches $49,400 during that session, the account breaches the model's rule. Recovering to a $51,000 close cannot repair the breach. Without that earlier breach, a $51,000 close would still leave the threshold at $49,500: the previous $51,500 closing high remains the reference.

Always identify the programme's cutoff, time zone and treatment of positions held across it. A platform's calendar day and a provider's trading day need not use the same boundary. “Balance-based” can describe the input that moves a threshold while equity remains the value used to check compliance.

The following examples were checked on 7 October 2026. They illustrate why the product and phase must be named; they are not recommendations or a complete account comparison.

Topstep's Maximum Loss Limit documentation describes an end-of-day trailing threshold monitored throughout the session, including unrealised results. It also describes a lock at the starting balance for the Trading Combine. Its Express Funded Account uses a different starting-balance presentation, and payout rules can change the applicable floor. Do not copy our uncapped chart into that rulebook.

FTMO's CFD Trading Objectives distinguish the 1-Step programme's end-of-day trailing Maximum Loss from the 2-Step programme's static Maximum Loss. The 1-Step reference uses qualifying balances at 00:00 CE(S)T; equity is the monitored value. These CFD conditions should not be carried over to a different FTMO product or phase without checking its own terms.

Boundary wording also differs: Topstep describes reaching the limit, whereas the cited FTMO rules describe equity falling below it. That is why this guide labels its at-or-below convention instead of presenting it as universal. Recheck current documentation before using any example for a particular account.

With $50,600 equity and a $49,500 threshold, the model has $1,100 of remaining room. Using a headline $50,000 account size as though it were fully available to lose would answer a different question. Neither buying power nor the displayed account label replaces the active limit.

A hypothetical planned loss of $500 would use about 45.5% of that $1,100 room before costs or execution differences. That ratio is arithmetic, not a suggested allocation. Multiple open positions can use the same remaining room at once, and an additional daily limit may create a tighter boundary.

The position-size calculator can explore a chosen monetary risk amount and stop distance. It does not infer a programme's current threshold for you. The risk/reward calculator compares the planned trade's inputs; a favourable ratio does not establish that an account can absorb the loss.

An account threshold is not a personal stop-loss. A programme may trigger automatic liquidation after a breach, but that does not guarantee execution at the threshold. Read the trailing stop-loss vs trailing stop-limit guide for the separate question of what an exit order does after its trigger. A similar use of the word “trailing” does not make an account rule and a trade order interchangeable.

Record the current answers for the exact programme and phase. A label such as “funded”, “EOD” or “trailing” does not supply the full calculation.

• Reference: does the threshold follow equity, closed balance, a daily closing balance or another defined value?
• Timing: when can the reference change, and what cutoff and time zone apply?
• Monitoring: do open losses, commissions, swaps or other charges count between recalculations?
• Boundary: is touching the floor enough, or does the rule specify falling below it? What happens after a breach?
• Caps: does trailing stop at a particular floor, and is that condition different during evaluation and later phases?
• Account changes: how do a payout, withdrawal, reset or replacement account affect the reference and remaining room?
• Other constraints: are there separate daily loss, position-size or other rules that must be met at the same time?

If the dashboard and your reconstruction disagree, preserve the timestamps, balance, open P/L, costs and rule version. Those details make a support question specific. A final closing balance alone cannot show whether an earlier intraday boundary was crossed.

• Subtracting the allowance from the current balance after every loss. A trailing floor uses the qualifying high, not a reference that falls with the account.
• Treating every open-profit peak as an EOD closing high. In the model, only the specified closing observation can move the EOD floor.
• Reading a later recovery as proof that no breach occurred. The path and the first violation matter, not just its endpoint.
• Treating a locked floor as the disappearance of risk. Equity can still approach a fixed floor, and other constraints can remain in force.

To check a calculation, first reconstruct the reference, then the threshold, then the monitored equity at each relevant time. Reversing that order encourages a misleading question: “How could I breach when my balance is still positive?”

How is trailing drawdown calculated?

In a fixed-amount model, subtract the allowed drawdown from the highest qualifying reference value. The key is defining that reference: it may be intraday equity or a balance recorded at a daily cutoff. Caps, withdrawals and other programme rules can change the calculation.

Does a trailing drawdown threshold move back down after a loss?

Not in the models used here. A loss reduces equity and remaining room while the last threshold stays in place. A reset or a new account is a separate event governed by the applicable programme terms.

Is end-of-day drawdown better than intraday drawdown?

With otherwise identical assumptions in this guide, an open-profit peak can raise the intraday floor without raising the EOD floor. That makes the EOD rule less restrictive on that path, not universally better. Different allowances, caps, costs and additional rules prevent a comparison based on the label alone.

Can an account breach while it is still in profit?

Yes. In our uncapped intraday example, a $53,000 equity peak and a $2,000 allowance create a $51,000 floor. Falling to $50,900 breaches it even though the account began at $50,000. Profit since inception and distance from the active floor are different measures.

Is trailing drawdown the same as a daily loss limit?

No. A trailing threshold follows a qualifying high across the history defined by the rule. A daily limit uses a separately defined daily reference and allowance. Both can apply at once; complying with one does not prove compliance with the other.

Does the calculator reproduce Topstep or FTMO rules?

No. It compares three uncapped teaching models with a fixed allowance and an at-or-below breach convention. It omits product-specific caps, resets, payouts, daily constraints and execution. Use the named sources and your exact account terms for a programme-specific calculation.