Mid price
—Best bid / ask midpoint
A CLOSER LOOK AT THE MARKET
The market, in focus.
Price tells you where. Liquidity and flow show you what is happening.
MARKETS
——last price · 24h change
24h low—
24h high—
24h volume · base—
Spread
—Waiting for the order book
Near-price depth
—Loaded value within ±50 bps
Bid share
—Share of loaded near-price value
Taker buy share
—Collecting executed trades
Realized movement
—Closed-candle log returns
01 / UNDERSTAND THE BOOK
Liquidity around the price
Waiting for market dataThe chart will appear after its first snapshot.
Inspect the underlying data
02 / FOLLOW THE EXECUTIONS
Who is crossing the spread?
—Net executed value
Collecting a continuous trade stream…
03 / WATCH LIQUIDITY EVOLVE
This sessionA live liquidity memory
Collecting foreground snapshotsLess More
History starts when this page connects.
Understand these readingsDefinitions & data limits
Quotes & liquidity
Mid is (best bid + best ask) ÷ 2. Spread in basis points is 10,000 × spread ÷ mid. One basis point is 0.01%. Depth sums price × base amount within ±50 bps. Bid share uses that same loaded quote-value sample.
Bitfinex P0 supplies up to 100 price levels per side. If the sample does not reach the band edge, the depth value is a lower bound. Checksum verification covers the top 25 levels on each side—not the entire market.
Executions & movement
Buy/sell direction describes the taker. Flow uses unique trade IDs received during the current uninterrupted observation period. A count-limited starting snapshot is not treated as complete time history. Reconnection restarts that period.
Realized movement is 100 × √Σ log(closeᵢ / closeᵢ₋₁)², from up to 30 consecutive closed-candle returns at the selected candle interval. It is not annualized; fewer than five returns show no estimate.
History & estimates
The heatmap is a foreground, session-only sample every five seconds. It is not a seven-day history. Depth outside received price coverage, background-tab intervals and disconnected periods remain unknown.
Order-size estimates consume displayed prices in order. “Beyond best quote” excludes the initial spread; the detailed result also reports impact against midpoint. Insufficient loaded liquidity never produces a complete-fill estimate.