Trailing drawdown: why funded accounts breach in profit

You closed the day green and the account is still gone. That is not a platform glitch, and the support ticket you are drafting will be answered with a link to the rule page you skimmed before paying the evaluation fee. The trailing drawdown

You closed the day green and the account is still gone.

That is not a platform glitch, and the support ticket you are drafting will be answered with a link to the rule page you skimmed before paying the evaluation fee. The trailing drawdown did exactly what it said it would do.

The mechanic takes one paragraph to explain and ends more funded accounts than any strategy flaw. The floor under your account rises every time you print a new high, and it never comes back down. Ten minutes into your first good session, your starting balance has stopped being the number that matters.

On a trailing-drawdown account your loss budget is set by your best moment, not by your starting balance, and on an intraday-trailing account a peak you never closed spends that budget just as permanently as a banked one.

The floor rises with every new high and never comes back down

Topstep publishes the cleanest version of the mechanic, so start there. On a $50,000 Trading Combine the Maximum Loss Limit begins at $2,000, which puts the floor at $48,000. Make $500 on day one and the balance moves to $50,500, so the floor moves to $48,500. Lose that $500 back on day two and the balance returns to $50,000 while the floor stays at $48,500.

Read that sequence again, because it is the entire article. Two sessions, net zero, and the account has $500 less room than it started with. Nothing went wrong. That is the product working.

The published starting limits scale with account size: $2,000 on the $50K, $3,000 on the $100K, $4,500 on the $150K. Topstep's own Maximum Loss Limit page also states plainly that the limit cannot be adjusted and that the firm makes no exceptions, which is worth taking at face value rather than testing.

Intraday trailing spends your budget on peaks you never closed

This is the version that catches people, because the floor does not wait for you to press the sell button.

MyFundedFutures documents its intraday model with the arithmetic in the open: starting balance minus trailing drawdown, so $50,000 minus $2,000 gives a $48,000 limit. Hit a new equity high of $51,000 and the limit becomes $49,000. The firm states directly that the peak balance it trails "includes both realized and unrealized gains."

So picture a normal Tuesday. You are up $1,000 on an open position at 10:31, you decide to let it run, the move reverses, and you scratch the trade flat at 10:45.

Your P&L for the day is zero. Your remaining room to the floor is $1,000, not $2,000. You bought the profit and the account kept the receipt.

That is the single most expensive gap between how retail traders think about a funded account and how the account is actually scored. The full arithmetic of how position size interacts with a fixed loss budget does not change here, but the budget itself is now a moving target that only moves one way.

End-of-day trailing counts your gains late and your losses instantly

The end-of-day model is the more forgiving one, and it is worth understanding exactly where the forgiveness stops.

On an EOD account the floor only ratchets on the closing balance. The 10:31 spike you never closed costs you nothing, which is why anyone whose strategy holds through normal intraday variance ends up preferring this model. That part of the marketing is honest.

The part that is quieter: the floor itself is still enforced tick by tick. Topstep states that the Maximum Loss Limit is monitored in real time throughout the session and that both realized and unrealized P&L count toward it. MyFundedFutures says the same thing about its EOD rule, that open equity losses are taken into consideration when deciding whether the account failed.

The floor stops chasing you only after you have earned the whole buffer

Every trailing drawdown eventually locks. Almost nobody checks where.

Topstep's limit locks permanently once it reaches your starting account balance. On the $50K Combine that means the floor stops moving when it hits $50,000, which requires the account to have reached $52,000 first. MyFundedFutures locks its Max EOD trailing at $100 above the initial starting balance and publishes the levels: $52,100 on the 50K plan, $103,100 on the 100K, $154,600 on the 150K.

The implication is worth sitting with. Until you have banked roughly the entire drawdown amount, your original balance is not a safe level to return to. Being flat on a funded account is not the neutral state it feels like; it is a slow walk toward the floor.

The evaluation is not testing whether you can make the profit target. It is testing whether you can make the profit target without ever having a moment good enough to hurt you.

— Internal note on funded-account risk, Tradoki desk

Your real risk budget is the distance to the floor, not the account size

Here is where the sizing conversation usually goes wrong.

A $50,000 account with a $2,000 buffer is not a $50,000 account. It is a $2,000 account with a $50,000 label on the order ticket. Size at 1% of the headline number, $500 a trade, and the buffer absorbs four consecutive losers. Four in a row is not a disaster scenario; it is a Tuesday through Friday that any honest backtest will show you repeatedly.

Halve the size to $250 and the same buffer absorbs eight. That is the whole trade-off, and it is arithmetic rather than opinion: consecutive losses survivable equals buffer divided by risk per trade.

As a rule of thumb from what we see in cohorts rather than a measured statistic, the traders who get through evaluations size so the buffer covers eight to ten losers, and they compute that number against the floor as it stands today, not as it stood on day one. Where the stop actually goes on the chart still gets decided by structure, but how many contracts sit behind that stop gets decided by the distance to the floor.

The give-back problem is the other half. Traders who reach a new high and immediately size up are spending a budget that just got smaller, which is the tilt pattern that shows up long before the breach does.

The number that matters is on the rule page, not the pricing page

Before paying for any evaluation, four answers settle most of it.

Which model is it? Static, end-of-day trailing, or intraday trailing. These are three different products sold under one word.

Does unrealized P&L move the floor up? On intraday models it does. That single line changes how you manage a winner.

Where does it lock, in currency? Not "at the starting balance," but the actual number, written down next to your platform.

What happens on a daily-limit breach? Topstep's live funded rules describe positions being flattened, pending orders cancelled and the trader locked out until the next session, with automatic flattening about ten seconds before the session ends at 3:10 PM CT. Firms differ; the difference matters at 3:09.

Write those four answers into the journal template you already run, alongside a daily line for the current floor. A funded account has a second scoreboard that the platform P&L does not show you, and the traders who survive their first month are the ones tracking it by hand. The wider case for whether these accounts belong in a career at all is in our piece on the prop firm model.

● FAQ

What is a trailing drawdown on a prop firm account?

It is a loss limit that moves up every time your account makes a new high and never moves back down. On a $50,000 account with a $2,000 drawdown, the floor starts at $48,000; if the account reaches $51,000, the floor moves to $49,000 and stays there even after the balance falls back. Your starting balance stops being the reference point the moment you make your first new high.

Does unrealized profit move the trailing drawdown?

On intraday-trailing accounts, yes. MyFundedFutures states that the intraday trailing drawdown is calculated from a peak balance that includes both realized and unrealized gains, so an open position that spikes and then gives the profit back has permanently moved the floor up. On end-of-day models the floor only trails the closing balance, so an intraday spike you did not close does not move it.

Is end-of-day trailing drawdown safer than intraday trailing?

It is more forgiving, but not in both directions. The floor only ratchets up on your closing balance, so intraday variance you did not bank costs you nothing. The floor itself is still enforced in real time: Topstep states that both realized and unrealized P&L count toward the Maximum Loss Limit, and MyFundedFutures states that open equity losses count on the EOD rule. Gains count late, losses count instantly.

When does a trailing drawdown stop trailing?

Only after you have earned roughly the whole buffer back. Topstep's Maximum Loss Limit locks permanently once it reaches your starting account balance. MyFundedFutures locks its Max EOD trailing at $100 above the initial starting balance, which the firm gives as $52,100 on a 50K plan, $103,100 on a 100K plan and $154,600 on a 150K plan. Until that point, the floor is still chasing you.

How do traders size positions against a trailing drawdown?

The arithmetic that matters is buffer divided by risk per trade. A $2,000 buffer with $500 risked per trade absorbs four consecutive losers before the account is finished, which is a streak that happens to profitable strategies regularly. Sizing on the account number rather than the distance to the floor is the most common reason a funded account ends inside its first bad week.