BTC Flow Analysis — August 19, 2021 BULL
Thursday · Minute-level BTC order flow from Binance · 1,774,382 trades
Summary
August 19, 2021: Bitcoin pushed +4.6% higher. The 975 BTC of net buying flow at $46,761 told a clear story — buyers were in charge.
BTC price (blue) and trading volume (cyan bars) per minute. Session shading: Asia (gold 00-08 UTC), Europe (green 08-14), US (red 14-00).
Flow Analysis
Sustained large-player buying throughout the day. 19 bars with trade sizes 3σ+ above normal (peak: 10.5σ), spread across 00:57–23:34 UTC. The 441 BTC of whale flow reinforced the day's buying bias.
Most of the action happened during US hours, which accounted for 83% of the day's net flow (1,216 BTC buying). The rest of the day was a footnote.
Price followed flow faithfully (correlation: 0.96). When you see this level of alignment, it means one side is in control and the other isn't even fighting.
Cumulative buying pressure (purple, left axis) vs cumulative price return (yellow, right axis). When these diverge, flow and price are telling different stories.
Session Breakdown
A tale of two halves — sellers pushed 485 BTC through the morning, then buyers flipped the script with 1,460 BTC in the afternoon.
Breaking it down by session: Asia -0.09%, Europe +0.72%, US +3.95%. US stood out.
| Session | Hours (UTC) | Return | Net Flow | Flow Share |
|---|---|---|---|---|
| Asia | 00:00 - 08:00 | -0.09% | -230 BTC | 16% |
| Europe | 08:00 - 14:00 | 0.72% | -10 BTC | 1% |
| US | 14:00 - 00:00 | 3.95% | 1216 BTC | 83% |
Per-minute volume split by aggressor side. Green = actively bought at the asking price. Red = actively sold at the bid price.
Regime Context
This day sat within a bull regime. The +4.61% return tracked the regime average of +0.34%.
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