The depth ladder belongs next to the chart, not in another window
A price-aligned DOM docked to the right edge of your chart, reading the same book your candles are printing from. And when your feed carries Market by Order, you see the individual orders, not just the totals.
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The live queue, updating price by price. Every number here is an order somebody has actually placed.
Every separate DOM window costs you the same thing
Your eyes leave the chart, find the ladder, locate the price, come back. Half a second, forty times an hour, at exactly the moments that matter most.
And when you get there, the prices don't line up with anything. The ladder has its own scale, its own scroll position, its own idea of where 4,512 sits on screen. You're doing coordinate translation in your head while the market moves.
The depth of market should sit exactly next to the candles it's about to move.
So that's where it goes. The SuperDOM docks as a panel on the right edge of your chart, aligned to the price axis. The size resting at 4,512 is physically level with the 4,512 gridline. No window to find, no mental translation, no misalignment.
Classic depth, or the per-order truth
Classic mode is the aggregated Level 2 histogram: total bid and ask size at each price, best bid and ask highlighted. Clean, fast, works on any depth feed you have.
MBO mode is the one worth switching your data plan for. Instead of one aggregated number per price, you see the individual orders queued there.
A single 200-lot and two hundred 1-lots produce the same number on Level 2. In MBO mode they look nothing alike, and they behave nothing alike when price arrives.
What per-order data unlocks
- Iceberg detection. Orders that keep refilling to hide their real size get flagged within a window you set. That's the hidden size defending a level, and it's completely invisible on aggregated depth.
- Aggressive limit orders. Limits that jump to the front of the queue are highlighted. Someone is in a hurry to get filled and doesn't want to pay the spread to do it.
- The queue and the totals. Order count and total volume at every price, with a totals column, plus filters to hide the small orders so only meaningful size shows.
- A diagnostics line. An optional readout of live MBO, Level 2 and trade event counts plus book size, so you can confirm at a glance that per-order data really is flowing rather than assuming it.
MBO availability depends on your provider and the instrument. Rithmic, CQG and Databento carry it on many contracts. When it's not there, the ladder runs in classic mode and keeps working. You get the richest view your feed supports, automatically, without configuring anything.
A ladder you stare at all day should look the way your eye works
Every color, width, font and highlight is yours to set. This matters more than it sounds when you're reading it eight hours a day.
Depth and layout
Levels per side, panel width, row spacing, font size, right margin. Fit it to the chart you actually run rather than the one the default assumed.
MBO layouts
Three-column stacked or queue view for the per-order display, with adjustable histogram scaling and price label modes.
Filters and highlights
Iceberg window, minimum display volume, hide-small-orders, plus independent highlight colors for icebergs, aggressive limits, and best bid and ask.
Structure from the heatmap, timing from the ladder
The ladder is precise but has no memory. It tells you what's at the next tick right now, and nothing about what was there ten minutes ago.
The liquidity heatmap is the opposite: it paints resting liquidity across time, so you can see the wall that's been defending a level all morning and the exact moment it pulled.
Run both on the same chart and you get the complete read. Find the level worth trading on the heatmap, then drop to the ladder to see whether the size defending it is real and refilling at the moment price arrives.
Put the book next to your candles
Add the SuperDOM to any chart in two clicks. If your feed carries MBO, the per-order view turns itself on.
Download SabrTrader free Compare plansIncluded in Pro, Ultimate and Lifetime.
The questions we get
What's the difference between this and the liquidity heatmap?
The SuperDOM shows the live depth of market at this instant, price by price. The heatmap shows resting liquidity over time, so you can see where size built, held and pulled. The ladder gives you the precise now, the heatmap gives you context and memory. Most order flow traders run both.
Do I need Market by Order data?
No. Classic mode is a full aggregated Level 2 ladder and works on any depth feed. MBO adds the per-order view with iceberg detection and aggressive limit highlighting, and switches on automatically when your feed provides it.
Which feeds provide MBO?
Rithmic, CQG and Databento among others, depending on the instrument. The diagnostics readout tells you whether per-order data is actually arriving rather than leaving you to guess.
Does it dock to the chart or float in its own window?
It docks as a panel on the right edge of the chart, aligned to the price axis, so depth sits level with the candles. That's the whole point of it.
Will it keep up on a fast open?
Yes. It's native rendering off the same shared real-time book the rest of the platform uses, built for high-rate MBO feeds.
Is it an add-on?
No. Included with Pro, Ultimate and Lifetime, along with the heatmap and the rest of the order flow suite. See pricing.