A prop account can be up overall and still fail today.
That is the whole reason daily loss limits and max loss rules need to be read separately. A daily loss limit is the floor for this trading day. A max loss rule is the floor for the whole account. They sound similar in marketing copy. In practice they kill accounts in different ways.
What daily loss limit and max loss actually measure
Daily loss limit is the amount your account can lose before the day is over. Max loss is the amount the account can lose before the entire evaluation or funded account is over.
That sounds obvious, but traders mix them up constantly because both are usually expressed as percentages and both are checked on equity, not just on closed trades.
As of June 20, 2026, FTMO's own public material defines Maximum Daily Loss as an equity limit that includes open positions, commissions, and swaps, and resets at midnight CE(S)T. Its Academy page also defines Maximum Loss as an account-wide equity floor. On FTMO's public 2-Step example page, the familiar illustration is 5% Maximum Daily Loss and 10% Maximum Loss on a 100,000 account. See FTMO's own Maximum Daily Loss, Maximum Loss, and How it works pages.
Here is the clean distinction:
| Rule | What it references | When it resets | What usually counts |
|---|---|---|---|
| Daily loss limit | Today's starting reference point | Every trading day | Closed P/L, open P/L, commissions, swaps |
| Max loss | The account's overall loss floor | Usually never during the phase, though some programs trail or rebase it | Equity, not just closed balance |
Why traders get this wrong
Traders usually get this wrong for three reasons.
First, they think in balance while the rule is often checked on equity. A trade that is still open can break the rule before it is closed. FTMO's Academy says this explicitly on both its Maximum Daily Loss and Maximum Loss pages: open P/L, commissions, and swaps are part of the calculation.
Second, they remember the percentage and forget the reset logic. A 5% daily loss limit does not always mean "5% below where I started the challenge." On FTMO's 2-Step rules, the daily limit is recalculated from the account balance recorded at midnight CE(S)T, so the floor can move up after a good day and down after a bad one. The daily rule is not static just because the percentage is static.
Third, they assume the same words mean the same mechanic across all programs. FTMO's own public materials show why that is unsafe. Its standard 2-Step pages describe Maximum Loss as a static 10% floor from initial capital, while the FTMO x OANDA Trading Objectives page describes the 1-Step version as an end-of-day trailing Maximum Loss. Same brand. Similar label. Different rule. That is exactly why you read the current rulebook, not a YouTube summary from last year. See the official FTMO x OANDA Trading Objectives page.
A simple example on a 100,000 account
The easiest way to see the difference is to walk through a simple sequence.
Assume a 100,000 account with a 5% daily loss limit and a 10% max loss limit, using the common FTMO-style 2-Step example published on June 20, 2026.
| Moment | Balance reference for the daily rule | Daily loss floor | Max loss floor | What it means |
|---|---|---|---|---|
| Start of Day 1 | 100,000 | 95,000 | 90,000 | Normal starting state |
| End of Day 1 close | 103,000 | n/a until reset | 90,000 | Good day, account is up |
| Start of Day 2 after midnight reset | 103,000 | 98,000 | 90,000 | Daily floor has moved higher |
| Day 2 intraday equity drop | 97,900 | breached | intact | The day fails even though the account is still above 90,000 |
That last line is the trap. The trader is still profitable versus the starting balance. The account can still fail the day.
Now reverse it.
| Moment | Balance reference for the daily rule | Daily loss floor | Max loss floor | What it means |
|---|---|---|---|---|
| Start of Day 1 | 100,000 | 95,000 | 90,000 | Starting state |
| End of Day 1 close | 98,000 | n/a until reset | 90,000 | Bad day, but account still alive |
| Start of Day 2 after midnight reset | 98,000 | 93,000 | 90,000 | Daily floor has moved lower |
| Day 2 intraday equity drop | 92,800 | breached | intact | Daily rule fails before max loss does |
The lesson is blunt: daily loss limit is about path control inside the session. Max loss is about total damage across sessions. If you do not know which rule bites first, you do not yet know what your backtest means.
What this changes in the way you read a backtest
A prop-style backtest is not honest if it only shows the biggest decline from peak to trough and calls it a day.
The reason is simple. Daily loss rules are session rules. They care about the worst intraday excursion relative to that session's starting reference, including floating loss. A strategy can survive the total max-loss rule and still be a poor prop strategy because its bad days are too violent.
An honest prop backtest should answer at least these questions:
- What was the worst intraday day relative to the firm's daily loss rule?
- Were open P/L, commissions, swaps, and realistic execution frictions included?
- Is the account judged against a static max-loss floor, a trailing one, or both?
- What happens when the order of trades changes and the ugly cluster comes earlier?
This is why the distinction matters more than semantics. The account does not fail because your annual return was too low. It fails because a bad sequence arrived in the wrong place.
That is also why realbacktesting frames funding as a survival problem, not a trophy-chart problem. The research runs on cTrader broker M1 data from 2021-2026 on an 80,000 EUR model base, charges real per-symbol spread, commission, swap, and 1 bps slippage, and verifies 100% backtest-to-live signal parity across 13 strategies and 175,401 bars. Most importantly for prop rules, the drawdown ceiling is enforced at the 95th percentile of 20,000 Monte Carlo simulations on the per-day intraday excursion, then confirmed on a 30% out-of-sample hold-out. The method is laid out on how we backtest on real costs, and the account-survival side is shown on the funding model.
If this broader path-risk question is the part you want to dig into next, why Monte Carlo drawdown matters for prop traders is the companion piece. If the issue is more about account mortality from sizing, risk of ruin for prop traders picks it up from there.
Frequently asked
Can you breach the daily loss limit and still be profitable overall?
Yes. That is one of the most common misunderstandings in prop trading. If the day's equity drops through the daily floor after the reset, the day can fail even while the account is still green versus the starting balance.
Does daily loss always reset every 24 hours?
No. It resets on the firm's own schedule, not on your watch. As of June 20, 2026, FTMO's public material says the reset is at midnight CE(S)T, which is exactly why overnight positions need extra care. Another firm may use a different server time or account logic.
Is max loss always a static rule?
No. Some programs use a static overall floor. Others use a trailing or end-of-day trailing version. FTMO's own public materials show both patterns across different programs, so the label alone is not enough.
What is the first prop-rule number worth checking in a backtest?
The first useful number is the worst intraday excursion relative to the daily loss rule, not the headline CAGR. If the strategy cannot survive a bad day with realistic costs and floating loss included, the long-run average is decoration.
The stubborn takeaway is simple: a daily loss limit and a max loss rule are not two names for the same thing. One tells you whether the account survives today. The other tells you whether it survives at all.