Static versus trailing drawdown

How the floor is calculated, when it moves, and when this desk refuses to calculate it.

The loss limit is the rule that ends the account. Everything else is a detail you can sometimes trade around. ‘Drawdown’ on a sales page is not a mechanism. Static, trailing intraday, and trailing end-of-day produce different floors from the same profit.

Static

A static limit is measured from a fixed baseline, usually the starting nominal balance. If the overall limit is 10% of 100,000, the floor stays at 90,000 unless the rules say the baseline itself moves. Profit does not lift a static floor. That is the feature: a good morning does not shrink the room you have in the afternoon.

Start
100,000
Nominal balance.
10% static floor
90,000
Does not rise when you make 6,000.
5% daily
5,000
Often a separate limit, reset on a clock.
Open at 96,000
Still 90,000
Room is larger in cash terms after profit. The floor did not move.

Trailing, intraday

An intraday trail follows a high-water mark while the trade is open. If the distance is 4,500 under the high, a spike to 106,000 puts the floor at 101,500 even if you never closed the profit. A pullback through that floor is a breach. This is why a trailing product punishes a trader who ‘gives back’ open profit. Harborpath’s demonstration One-Step 150k is written as a dollar distance for that reason: USD 4,500, not ‘3% like the other size’.

Trailing, end of day

An end-of-day trail locks to a reference that updates on a schedule, not on every tick. Intraday peaks that are not the closing snapshot do not lift the floor. You can still be ruined by the close. You are not ruined by a wick that retraces before the lock, unless a separate intraday rule says so. Harborpath’s EOD Trail 100k and Atlas’s one-step records use this shape. They are not interchangeable with Harborpath’s intraday product, even though the brand is the same on the first pair.

Balance, equity, and the clock

The floor also depends on whether the rule watches balance, equity, or both, and on when it looks. A limit that includes floating loss is stricter in practice than one that looks only at closed trades. ‘End of day’ without a timezone is an incomplete rule. Northline states 00:00 server time and does not state where the server is. That gap is stored as an unknown, not filled with your local midnight.

Two limits are normal

A daily limit and an overall limit are different tests. Atlas One-Step 50k, in the demonstration set, has a 5% static daily check and a 6% end-of-day trail. You can satisfy one and fail the other. Quoting only the trail understates the product.

You rally to
100,000 start
Static 10% from 100k
Floor 90,000
Trail 6% intraday
Floor 94,000
Trail 6% from prior EOD
Floor 94,000
You rally to
106,000 open, not closed
Static 10% from 100k
Floor still 90,000
Trail 6% intraday
Floor 99,640
Trail 6% from prior EOD
Floor still 94,000 until the lock
You rally to
Close 104,000
Static 10% from 100k
Floor still 90,000
Trail 6% intraday
Floor at least 97,760
Trail 6% from prior EOD
Next lock uses 104,000

Same profit, three floors. Illustrative numbers, not a live account.

The intraday column is harsh on the open spike. The static column ignores the spike. The end-of-day column ignores it until the snapshot. Picking a programme because ‘the percent looks similar’ skips this table.