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Onyx DOM (Depth of Market) | DayTraders.com Help Center
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▸Version 1July 26, 2026, 11:57 AM
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The DOM (Depth of Market) in Onyx provides a real-time view of bid and ask liquidity at each price level, allowing traders to see market depth and execute trades directly from the ladder.
The DOM is designed for speed, precision, and active order flow trading.
What the DOM Shows
The Onyx DOM displays:
- Bid column (green): Buy orders waiting below the market
- Ask column (red): Sell orders waiting above the market
- Price ladder: Each row represents a valid tick price
- Current price: Highlighted in the center of the ladder
- Order size: Number of contracts resting at each price level
This gives you a clear picture of supply and demand in real time.
DOM Controls Explained
Across the top of the DOM you’ll see:
- SELL: Click to submit sell orders at the selected price
- BID: Shows buy-side liquidity
- RECENTER: Re-centers the ladder around current price
- ASK: Shows sell-side liquidity
- BUY: Click to submit buy orders at the selected price
You can interact directly with the ladder to place orders quickly.
Trading from the DOM
You can place orders directly by clicking on the ladder:
- Click on the Bid side to place a buy order
- Click on the Ask side to place a sell order
- Orders respect your current Order Entry settings
- Bracket logic and quantity apply if enabled
This makes the DOM ideal for scalping and fast execution strategies.
Top of Book
The Top of Book view focuses on the best bid and best ask prices only.
This is useful when:
- You want a simplified view
- You are trading very fast markets
- You don’t need full depth
Common Use Cases
The Onyx DOM is commonly used for:
- Scalping and short-term trades
- Order flow analysis
- Liquidity-based entries
- Fast manual execution
- Monitoring absorption and stacking
Best Practices
- Use the DOM with a wired internet connection
- Combine DOM trading with bracket orders for risk control
- Recenter frequently in fast markets
- Avoid DOM trading on unstable connections
- Practice in simulation before live trading
Important Notes
- DOM data is powered by Rithmic
- Execution speed depends on your gateway selection and network quality
- Liquidity can change instantly during volatile conditions
Summary
The Onyx DOM gives traders direct access to market depth and rapid execution through an intuitive ladder interface. It is a powerful tool for active futures traders who rely on precision, speed, and real-time liquidity visibility.
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