Stop Loss

A grid is built to sit through drawdown: that is how it collects the range. The pathological case is a market that simply keeps going. Every rung fills, no exit fills, and — with a martingale size curve — the position grows fastest exactly when the thesis is most wrong.

The stop loss converts that unbounded tail into a known, chosen loss. It is off by default because a stop that is too tight will fire during the very oscillation the grid exists to harvest.

The percentage of adverse movement — down for a long grid, up for a short — measured from the basis you pick. Crossing it trips the stop.

• Base — when you want a hard, pre-known maximum loss.
• Average entry — when you want the stop to scale with how much you have actually committed.
• Deepest level — when the ladder itself is your risk budget and the stop is only a catastrophe backstop.

1. 1
   1 — Latch

   The trigger is recorded first, so a second evaluation during the exit round-trip cannot fire twice.
2. 2
   2 — Cancel

   Every live order across every level is cancelled at the broker and marked cancelled locally, then persisted and broadcast so the terminal reflects reality.
3. 3
   3 — Retire idle orders

   Queued deferred (idle) refills are dropped. Without this an idle alert would place a brand-new grid order the moment price crossed its trigger — right after the book was pulled.
4. 4
   4 — Flatten

   For exit-all, a reduce-only market order closes the net position. Reduce-only guarantees it can never open the opposite side if the grid is already flat.
5. 5
   5 — Halt

   The strategy stops processing fills, trailing and refills, and reports status "stopped" with the trigger reason. Restarting is a deliberate operator action.

Price ticks arrive on the broker's websocket thread, which only records the latest price. The check itself runs on the engine thread during its maintenance pass, because triggering mutates the grid and places orders. It runs first in that pass: if the market has run through the stop, the correct action is to pull the book — not to heal, refill or trail into the move.

Arming a stop on a strategy that is already past the threshold fires it immediately rather than waiting for the next tick.

Because martingale curves concentrate size at depth, most of the loss at the stop comes from the last few rungs. The expanded ladder plan computes this for you: it reports the estimated loss at the stop across the rungs that would have filled, using your actual sizes.

• Fixed / capped / anti-martingale — loss grows roughly with depth. A stop just outside coverage is usually affordable.
• Linear martingale — loss grows with the square of depth. Keep the stop close outside coverage, or cap the level count.
• Exponential / triangular — the deepest rung dominates everything. A stop is not optional here; it is the only thing bounding the tail.

All four fields are editable from the terminal's Settings tab while the strategy runs. Arming, disarming or moving the distance takes effect on the next evaluation — no restart, and no effect on resting orders unless the stop actually fires.

• 1.Capital Allocation — Sizing the account to the ladder
• 2.Leverage & Base Price — Stop distance vs liquidation distance
• 3.Grid Modes — Overview — How the size curve shapes the tail
• 4.Reading the Ladder Plan — Seeing the stop line and its estimated loss