A deep order book can be useful, but it isn’t a promise.
An order book displays resting limit orders: bids below the current price and asks above it. Market depth summarizes the displayed quantity available across price levels.
For intermediate traders, a few distinctions matter:
• Displayed depth is a snapshot. Orders can be added, changed, or canceled; a visible “wall” alone doesn’t prove anyone’s intent or that a level will hold.
• Depth is venue-specific. One exchange’s book doesn’t show all liquidity across the market.
• Liquidity has a price. A large order interacting with limited available quantity can move through several levels, causing market impact and slippage.
• A depth chart aggregates orders. It can make liquidity look substantial while hiding how unevenly it is distributed across price levels.
• The book isn’t the whole market. It shows displayed orders, not every possible source of liquidity or what will actually execute.
So, an order book is a view of currently displayed liquidity, not a forecast. Context, venue, and timing matter, and a single screenshot can’t establish what happens next.
This is general educational information, not a trade signal or instruction to buy or sell. Digital assets are volatile, and losses are possible.
What would you like covered next: spread, order-book imbalance, or slippage?
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