DOM window overview

The DOM (depth of market) is the order book as a price ladder. You see where buyers and sellers are sitting at every price. You place, move and cancel orders with the mouse.

Applies to Web and DesktopUpdated 2 Nov 2026Read time 7 min

Open a DOM

In the top bar, click + and hover DOM. Choose Basic DOM or Advanced DOM. See Basic DOM and Advanced DOM.
Click the instrument name in the DOM header and search for a symbol, for example ES.
Pick an account in the trade panel. On Market Replay the account is Replay 01.

Tip. On a docked DOM you can turn on Follow active chart. The DOM then switches to whatever chart you click. See Follow active chart.

Window layout

The header has the instrument and the window controls. The ladder is in the middle. The trade panel sits next to it, or above or below it.

An ES DOM on Market Replay with the trade panel on the right. This one has VOLUME, PRICE, BUYS, BID, LTQ, I.BID, I.ASK, ASK and SELLS switched on. Your columns follow your DOM template.

Header
1
Instrument
Click the symbol to search for another instrument.
2
Follow active chart
Shown on a docked DOM. Turn it on and the DOM follows the chart you click.
3
Center
Jumps back to the last traded price.
4
Clear
Resets totals, inside prints and price markers.
5
Settings
Opens the DOM settings.
6
Show strategy
Shows or hides the Strategy section. Hiding it also turns stop loss and take profit off.
7
Trade panel placement
Puts the trade panel on the left, right, top or bottom.
8
Show trade panel
Shows or hides the trade panel.
9
Enable Hotkeys
Turns this DOM's hotkeys on or off.
10
Lock this DOM
Switches trading off or on in this DOM only.
Ladder
11
Column header row
One kind of data per column. See DOM columns.
Trade panel
12
Account
The account your orders go to.
13
PL, R/PL, POS
Open P/L, realized P/L and position size. Click POS to put your position size in the quantity box.
14
QTY
Type a size, use the arrows or click a preset.
15
Order type and time in force
LMT or STP MKT, and DAY or GTC. See Order types and time in force.
16
BUY MKT / SELL MKT
Send a market order. With Confirm order placement on, a confirmation window opens first.
17
CXL SELL, CXL ALL, CXL BUY
Cancel working orders. See Cancel and Liquidate.
18
LIQUIDATE
Cancels this instrument's working orders, then closes its position.
19
Strategy
Pick a strategy and set SL and TP in ticks. See Strategy, brackets, SL and TP.
20
Change, H, L, O, V
Session change, high, low, open and volume. You can switch these on or off in the DOM settings.

Place, move and cancel orders

You don't type a price. You click the ladder, and the row you click is the price. Everything else comes from the trade panel: account, quantity, order type, time in force, stop loss and take profit.

To do this	Do this
Place a buy order	Left-click in the BID column at the price you want.
Place a sell order	Left-click in the ASK column at the price you want.
Place one stop market order	In Settings → Hotkeys, set Toggle Order Type to Stop to Shift + Left Click or Right Click. That click on BID or ASK sends a STP MKT order, whatever the panel says. The panel goes back to its own type after.
Move an order	Press the left mouse button on your order, drag it to another row and let go. Press `Esc` to cancel the drag.
Cancel an order	Right-click your order.
Mark a price	Hold `Alt` and click in the PRICE column. Do it again on the same price to remove the marker.
Center the ladder	Double-click in the PRICE column, or click Center.

Your orders show up in the order columns, BUYS and SELLS or a single ORDERS column. With Overlay orders on the Pull/Stack Column on, they're drawn over the pull/stack columns too. Moving and cancelling work on any of those cells.

Hover over BID or ASK and you get a preview of the order in that row, as long as trading is on for this DOM. If stop loss and take profit are on, their rows get labels like TP 1 LMT and SL 1 STP.

Careful. Out of the box, a confirmation window opens before an order goes out or gets cancelled from the ladder. Tick Don't ask again and it stays off, and then one click sends the order. You can turn the confirmations back on with Confirm order placement and Confirm order cancellation in the main Settings → Trading.

The confirmation window for a buy limit on ES, one contract at 7770.50. It has the Don't ask again box, Cancel and Confirm Buy. A sell reads Confirm sell order and Confirm Sell.

The ladder uses the trade panel as it is right now

The ladder and the chart read the trade panel the moment you click. You don't need to press Enter or click somewhere else first. If your cursor is still in the QTY box, or in a stop loss or take profit field, the order uses what the panel shows at that moment.

Change the quantity, the SL and TP ticks or the account, then click the ladder straight away. The preview and the order use the new values.
If the panel can't give a valid order, nothing is sent and you get an error. An empty quantity or one below 1 gives Order not sent: enter a quantity of at least 1. A stop loss or take profit that's on without a valid distance gives Order not sent: enter a stop loss distance of at least 1 tick, or turn stop loss off. (or the take profit version). If the quantity on screen differs from the one the order would use, the message starts with Order not sent: the ticket shows QTY and tells you to check the quantity.
If trading is locked in this DOM, a window titled Unlock this DOM? opens and no order goes out.

Basic DOM and Advanced DOM

A Basic DOM shows your orders, bid, price and ask. An Advanced DOM adds the volume profile, pull/stack and inside prints. Go basic in a small window. Go advanced when you want to watch the book near the inside market. Details are in Basic DOM and Advanced DOM.

Columns

You turn columns on and off in Settings → Columns → Common. An Advanced DOM has these:

Column	What it shows
VOLUME	Volume traded at each price in the session, drawn as a horizontal profile.
BUYS and SELLS	Your own working buy and sell orders at each price.
P/S.BID and P/S.ASK	Pull/stack, the change in resting contracts at each price. Positive means contracts were added. Negative means contracts were pulled.
BID and ASK	Resting limit orders waiting to buy (bid) or sell (ask) at each price.
I.BID and I.ASK	Inside prints, the contracts that traded at the bid or at the ask.
PRICE	The ladder itself. The last traded price is highlighted. An open position colors its entry price.

You can also add LTQ, T.BID, T.ASK and P/S. They're all covered in DOM columns.

Reset counters with Clear

Totals and inside prints keep their numbers until you clear them. Click Clear in the header (the broom icon) and pick what to reset.

Menu item	Resets
Clear All	All totals (T.BID, T.ASK) and all inside prints.
Inside Prints	The I.BID and I.ASK columns only.
Total Up	Totals and inside prints on the rows above the center line.
Total Down	Totals and inside prints on the center row and the rows below it.
Price Markers	Every price marker you placed.

Trade panel

The trade panel holds everything you set before you click the ladder. Use Show trade panel to hide it and Trade panel placement to move it. In Settings → Trading you choose which rows and buttons it shows and how wide it is.

Careful. LIQUIDATE cancels this instrument's working orders on the selected account, then closes the position. One click and you're flat on that instrument. See Cancel and Liquidate.

Good to know

A REPLAY badge in the header means the DOM is on Market Replay data.
A DATA ONLY badge means a US stock or crypto instrument. You get best bid and ask, trades and session volume, but no orders, and the trade panel is hidden.
Hotkeys only run in the active DOM window, and only while Enable Hotkeys is on. See DOM hotkeys.

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