How Lot Multipliers Change Grid Risk
A lot multiplier makes each grid level bigger than the last. What it does to total exposure, to the retrace needed to recover, and to the loss at depth — ×1 to ×3 compared on the same grid.
By the AURAX teamPublished 4 min read
On this page (5)
A lot multiplier sets how much larger each grid level is than the one before: at ×2, 0.01 becomes 0.02, 0.04, 0.08 and so on. It shortens the retrace the basket needs to break even, and it multiplies the exposure at depth — geometrically, not linearly. On the same eight-level, $5 grid, going from ×1 to ×2 raises total exposure from 0.08 lots to 2.55 lots and the loss as the last level opens from $140 to $1,235.
lot at level n = starting lot × multiplier^(n − 1)
- total lots = starting lot × (multiplierⁿ − 1) ÷ (multiplier − 1), for a multiplier above 1
- Lots are rounded to the broker's lot step (usually 0.01), which distorts small multipliers on small starting lots
Part of the Grid trading guide.
Five multipliers on the same grid
Starting lot 0.01, eight levels, $5 apart, lots rounded to 0.01:
| Multiplier | Last level | Total lots | Last level's share | Loss as level 8 opens | Loss per $1 beyond | Retrace to break even* |
|---|---|---|---|---|---|---|
| ×1 (flat) | 0.01 | 0.08 | 13% | $140 | $8 | $17.50 |
| ×1.2 | 0.04 | 0.16 | 25% | $195 | $16 | $12.19 |
| ×1.5 | 0.17 | 0.49 | 35% | $415 | $49 | $8.47 |
| ×2 | 1.28 | 2.55 | 50% | $1,235 | $255 | $4.84 |
| ×3 | 21.87 | 32.80 | 67% | $8,180 | $3,280 | $2.49 |
Every row buys a shorter recovery with more exposure. Going from ×2 to ×3 shortens the retrace from $4.84 to $2.49 and multiplies the loss per dollar of further movement by almost thirteen.
Where the risk sits
With a multiplier the exposure is back-loaded. At ×2, the eighth level alone is half of everything the grid will ever hold; the first four levels together are 6%. That has two consequences:
- The first levels tell you nothing about the risk. A basket that closes at level 3 used 0.07 lots. The one that reaches level 8 uses 2.55.
- The last levels decide the outcome. If an account-level stop would fire before the last levels open, those levels add risk and never add recovery. If it fires after, the account must survive the largest positions at the worst prices.
| Level | Lots | Relative size | Price moved | Lots open | Floating loss as it opens |
|---|---|---|---|---|---|
| 1 | 0.01 | $0.00 | 0.01 | — | |
| 2 | 0.02 | $5.00 | 0.03 | −$5 | |
| 3 | 0.04 | $10.00 | 0.07 | −$20 | |
| 4 | 0.08 | $15.00 | 0.15 | −$55 | |
| 5 | 0.16 | $20.00 | 0.31 | −$130 | |
| 6 | 0.32 | $25.00 | 0.63 | −$285 | |
| 7 | 0.64 | $30.00 | 1.27 | −$600 | |
| 8 | 1.28 | $35.00 | 2.55 | −$1,235 |
The multiplier and margin
Margin grows with the lots, so a multiplier grows margin geometrically too. At a price of $3,000 and 1:100 leverage, 2.55 lots need $7,650 of margin — more than many accounts running this grid hold. When free margin runs out, the broker refuses the next level: the grid stops adding, and the positions already open keep losing at the rate they have. On a $5,000 account the eighth level of this grid cannot be opened at all.
Margin and free margin explains the mechanics; the grid risk calculator applies them to any ladder and shows which levels your balance can actually open.
Variations on the multiplier
| Variation | What it does | Effect |
|---|---|---|
| Multiply every Nth level | Size grows only every 2nd, 3rd… position | Slower growth; more levels before exposure explodes |
| Custom sequence | e.g. 1, 1, 2, 3, 5, 8 | Any shape — flat early, steep late, or capped |
| Capped size | Lots stop growing at a maximum | Bounds the last level; recovery slows past the cap |
None of them changes the basic trade-off. They move it along the curve between a flat grid's slow recovery and a doubling grid's exposure.
Choosing a multiplier
- Size from the full-depth loss, never from a typical basket.
- Check the margin at full depth against the balance — can the account even open the last level?
- Compare the account-level stop with the level at which it fires. Levels beyond it are wasted risk.
- Prefer a smaller multiplier with a wider step over a large multiplier with a tight one if the aim is survival rather than a high win rate.
Educational content, not financial advice. Trading gold and other leveraged products carries a high level of risk, including the possible loss of some or all of your capital. Automated strategies do not guarantee profit, and past or simulated performance is not indicative of future results. Risk disclosure.