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OB: Order Book

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Level 2 order book: bids and asks by price for the linked security.

Order Book shows Level 2 depth for the linked security: resting bids and asks at each price, with size and cumulative size.

OB follows its link group.

Aliases: MBO, DEPTH, L2

How to use OB

You typeResult
BTC-USD OB ENTERThe bitcoin order book.
MSTR OB ENTERThe MSTR order book.

Window menu

Open ▾ in the title bar (or right-click the window) for OB’s options:

The OB Order Book window menu open
The OB window menu.
Menu itemShortcut
BTC-USD1 <GO>
BTC-USD2 <GO>
ETH-USD3 <GO>
SOL-USD4 <GO>

The menu also has the standard window actions: change function, change security, link, open a copy, zoom and close.

Plan limits

GuestFreePro
The live bid and ask——✓
The full order book——✓

See Plans and access.

DOM: Depth of MarketBids · buys · price · sells · asks · Δ% ladderTAS: Time & SalesEquity prints (15m delayed) · crypto perp tapeQ: FocusSingle-ticker tapeTKT: TradeOrder ticket

FAQ

What does OB do?

L2 depth.

How do I open OB?

Type OB on the command line and press ENTER. To open it in a new window, type +OB or press ⇧ENTER. Add a ticker first to load a specific security, for example BTC-USD OB.

Why is the book blurred?

The live bid/ask and the full book are Pro features.

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