Order Book

Definition

Centralized and some on-chain venues use order books. Depth and spread determine how much size you can trade without large slippage, which makes the book a research input for exit capacity — not only a day-trading screen.

Researchers read books for resilience. Tight spreads on tiny size are not depth. Look beyond top of book to see whether your exit fits without walking levels aggressively. Unminted authority is still dilution risk under a marketed max.

Books fragment across venues. A token can look liquid on one CEX and hollow elsewhere. Aggregating last prices without depth creates false comfort. Triage scores expire when unlock regimes or narratives flip.

Around unlocks and news, resting liquidity can pull. Scenario notes should include “depth disappears” cases for mid and small caps. Sector pages help you see which peer already priced the story.

Why researchers care

• Thin books amplify wicks and unlock impact.
• Check depth across venues, not just last price.
• Spread plus depth beats volume headlines for exit planning.
• Pulled liquidity during stress is a hidden position risk.

How to use it in research

• Measure cumulative depth within 2% of mid before sizing a position.
• Compare the same alt’s book on two exchanges — pick executable venues.
• Notice spoof-like thin walls that vanish — do not treat them as real support.

Common mistakes

• Equating last trade price with executable size.
• Ignoring that displayed liquidity can be fleeting.
• Using only 24h volume as a proxy for book depth.