BTC Flow Analysis — September 19, 2025 CHOP
Friday · Minute-level BTC order flow from Binance · 1,732,471 trades
Summary
September 19, 2025: Bitcoin drifted lower (-1.23%). The 950 BTC of net selling flow at $115,632 told a clear story — sellers 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 selling throughout the day. 37 bars with trade sizes 3σ+ above normal (peak: 13.6σ), spread across 02:05–23:12 UTC. The 254 BTC of whale flow reinforced the day's selling bias.
Day 4 of unbroken net selling. The market had a directional lean and wasn't letting go.
Flow and price moved in lockstep (correlation: 0.86). Aggressor-side selling translated directly into price movement with minimal resistance.
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
Most of the action happened during Asia hours, which accounted for 68% of the day's net flow (644 BTC selling). The rest of the day was a footnote.
Breaking it down by session: Asia -0.14%, Europe -0.53%, US -0.56%. US stood out.
| Session | Hours (UTC) | Return | Net Flow | Flow Share |
|---|---|---|---|---|
| Asia | 00:00 - 08:00 | -0.14% | -644 BTC | 68% |
| Europe | 08:00 - 14:00 | -0.53% | -286 BTC | 30% |
| US | 14:00 - 00:00 | -0.56% | -20 BTC | 2% |
Per-minute volume split by aggressor side. Green = actively bought at the asking price. Red = actively sold at the bid price.
Regime Context
Market conditions were chop — and this day didn't deviate. A -1.23% return against a regime average of +0.10%.
Related Days
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