You are up $600 on the day. Before the close you give $200 of it back and finish up $400. On one funded account, that is simply a good day. On another, the $200 you handed back may have just failed the account, even though you never lost money. Same trade, same result, two completely different outcomes, and the only difference is how the prop firm measures drawdown.
This is one of the most important distinctions in funded trading, and one of the least understood by people signing up for evaluations. End-of-day drawdown and intraday trailing drawdown are two different rules that can turn the same trading day into a pass or a bust. Here is how each works, and why it changes the way a fixed-target system behaves.
Every funded account has a maximum loss limit, a floor your balance is not allowed to touch. What varies, firm to firm, is where that floor sits and when it moves. There are two common designs.
They sound similar. They are not. The full set of funded rules and how they fit together is in funded account rules, explained, but this one distinction deserves its own treatment.
Intraday trailing drawdown punishes open profit you give back, even on a winning trade. End-of-day drawdown only cares about where you finish. The exact same trade can pass one rule and breach the other.
With an intraday trailing limit, the maximum-loss floor chases your highest point during the day, including profit you are showing but have not booked. Say your account starts at $50,000 with a $2,000 trailing limit, so the floor begins at $48,000. You go long, and mid-trade the position is up $600, pushing your unrealized balance to $50,600. On many firms' rules the floor immediately trails up to $48,600.
Now the trade pulls back and you close it up $400. You made money, but your floor is now $48,600, and if the session drifts down you have less room than you started with, because the rule counted a peak you never locked in. The cruelty is specific: you can be penalized for profit you gave back on a trade that still won. A fixed-target system that regularly shows open profit before price reaches the target is exactly what a strict intraday trail treats harshly.
An end-of-day limit ignores that intraday drama and looks only at your balance when the session closes. Take the same day: you peaked at $50,600 unrealized, gave some back, and finished up $400 at $50,400. The floor is recalculated from that $50,400 close, not from the $50,600 you touched for a moment. The profit you gave back mid-trade never counts against you, because the rule was never watching mid-trade.
This is the gentler design, and it rewards the behavior a disciplined system produces: let the trade work, let the stop and target do their jobs, and be judged on the result, not on the wiggles along the way.
| Question | Intraday trailing | End-of-day |
|---|---|---|
| When does the floor move? | Tick by tick, in real time | Once, after the close |
| Counts unrealized peaks? | Yes | No |
| Punishes open profit given back? | Yes | No |
| Room after a volatile winning day | Can shrink | Based on the close only |
| Friendlier to fixed-target trades | Less | More |
Put the numbers side by side on one ordinary trade. Account $50,000, maximum loss $2,000, a long that peaks at up $600 unrealized and closes at up $400.
Neither rule is a scam. They are just different bets the firm makes about your behavior, and you need to know which one you agreed to before you place a single trade. If trailing limits still feel fuzzy, start with what drawdown actually is.
Both systems on this site place a stop and a target in the market at the same instant they enter, and both are flat by the close every day. Take the Algomyth engine, whose target is set at three times the risk. Because the target sits above the entry, a winning trade often shows open profit before price reaches it, and sometimes price approaches the target, backs off, and comes back. Under an intraday trailing rule, that backing off can trim your cushion even on trades that ultimately win. Under an end-of-day rule, it is invisible.
None of this changes the strategy's own risk, which in the published backtest, a run from January 2022 to September 2026 on a mid-size account, showed a worst drawdown of $5,273. What it changes is how much margin for error your funded account gives you around that. The account rule and the strategy's drawdown are two separate things, and you have to survive both. The honest version of the strategy's downside is on the risk page.
Hypothetical performance. The Algomyth figures here come from a backtest over historical data, not a live account. Simulated results are prepared with hindsight, carry no financial risk, and cannot fully reflect real execution, slippage or liquidity. Past performance, real or simulated, does not guarantee future results.
Put the strategy's drawdown, your contract count and your firm's loss limit into the same view and see how much room you would really have.
For most systematic traders, end-of-day is the friendlier rule, because it judges you on results rather than on the path. But firms price their accounts around their rules: a gentle end-of-day drawdown may come with a smaller total loss limit, a higher account price, tighter profit targets or stricter consistency rules to balance it. There is no free lunch, only trade-offs you choose with your eyes open. Comparing them across firms is what the prop firm trading guide is for, and the broader case for funded accounts is on funded capital.
Do not guess, and do not assume two firms with the same account size use the same rule. Before you pay for an evaluation, find these in the firm's own documentation.
Intraday trailing drawdown moves your maximum-loss floor in real time, following your account's highest point during the session, including profit you are showing but have not closed. End-of-day drawdown only recalculates the floor once, based on your balance at the close. The practical result is that an intraday trail can penalize you for open profit you give back during a trade, while an end-of-day rule only judges where you finish the day.
It is usually gentler for systematic traders, but "better" depends on the whole package. Firms balance a lenient drawdown rule with other terms, such as a smaller total loss limit, a higher account cost, or stricter profit and consistency targets. The right question is not which single rule is softest, but which complete set of rules fits how your system actually trades. Read every term, not just the drawdown line.
Because it counts peaks you never locked in. If a trade goes up $600 before settling at a $400 profit, an intraday trail may move your floor up to reflect that $600 high, then leave it there after you give the $200 back. You kept a profit, but your cushion to the floor shrank as if you had booked and lost that peak. Systems that regularly show open profit before reaching a fixed target feel this most.
Both place a stop and a target at entry and close flat daily, so neither carries open risk into the next session. The Algomyth engine sets its target at three times the risk, which means winning trades often show open profit on the way there, and sometimes price pulls back before hitting it. An intraday trailing rule can trim your account cushion during those pullbacks even on trades that win, whereas an end-of-day rule ignores them. The Algomyth engine's worst backtested drawdown on a mid-size account was $5,273, but your account rule decides how much room you have around it.
Yes, and this is the point most beginners miss. Under an intraday trailing rule you can finish several days in profit and still breach your maximum-loss floor if you gave back enough open profit at the wrong moments. The account measures distance to a trailing floor, not your net result, so a run of volatile winning sessions can quietly erode your cushion. Understanding the rule before you fund is the only real defense.
Everything we write comes back to one idea: verify, then decide. The live terminal exists for exactly that.
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