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Release Note

Book % Column — See How Much of the Orderbook Each Trade Ate

March 21, 2026

NewTerminal
Time
Side
Market
Price
now
BUY
Will ETH hit $5K by June?
31.3% bookspread 82$48K
54¢
1m
SELL
Fed rate cut by July?
2.1% bookspread 229$12K
37¢
3m
BUY
Lakers vs. Celtics
5.5% bookspread 487$93K
62¢
<5% deep book·5–30% moderate·>30% thin book
Spread = cost to trade·Book % = how much of the book got consumed

New Book % column in the terminal feed. When a whale trade lands, we snapshot the full orderbook depth and show what percentage of available liquidity the trade consumed. A $50K buy eating 37% of asks? Price is about to move. Same size eating 2% of a deep book? Barely a ripple.

Color-coded for quick reads: teal (<5%) absorbed easily, orange (5-30%) moderate impact, red (>30%) the whale moved the market.

Pairs with the existing Spread column — spread is cost of trading, Book % is market impact. Tight spread + thin book = cheap entry but your order moves price. Wide spread + deep book = expensive but absorbed. Works on Polymarket and Kalshi.