Bitcoin Exchange Flow Note – Detailed Statistics & Updated Analysis (as of early October 2026)
Key Context
The monthly average exchange inflow-to-outflow ratio has declined to approximately 0.97 and continues trending lower. This indicates that outflows are dominating inflows across platforms, consistent with investors moving Bitcoin into self-custody for longer-term holding while prices have continued to rise.
Major Statistics on Flows and Reserves
Record single-day net outflow (late September 2026): Approximately 13,800–13,878 BTC left in one day — the largest daily net outflow recorded since 2023 (valued around $1.1 billion at prevailing prices).
Four-day reserve decline (late September): Holdings on the largest platform fell from roughly 705,000 BTC to 685,000 BTC, a reduction of about 20,000 BTC.
Weekly average netflow (late September period): Approximately –2,000 BTC.
Cumulative outflows following the peak day: Around –23.7K BTC over the subsequent ~11 days into early October.
Recent 7-day window (ending 4 October 2026): Overall centralized platforms recorded net outflows of 6,762 BTC. One major platform alone accounted for outflows of approximately 1,923 BTC in that period.
The largest platform continues to hold roughly 30% of the Bitcoin available across investor-accessible exchanges.
Broader exchange reserves overall have reached multi-year lows (near 2.68 million BTC).
Supporting Market Context
Bitcoin had advanced roughly 45% from its July levels, holding above key prior highs near $82,000. Funding rates remained near neutral during these moves, pointing to spot-driven activity rather than leveraged positioning.
Updated Analysis
These large and sustained net outflows reinforce the constructive reading of the sub-1.0 inflow/outflow ratio. When more Bitcoin leaves trading platforms than enters them, the immediately available sell-side supply declines. This behaviour is typically associated with accumulation and longer-term holding preferences. The pattern that began with the late-September spike has continued, though at a more moderate pace in the most recent seven-day data. Combined with neutral leverage conditions and multi-year low overall exchange reserves, the flow data supports a structural backdrop favourable to holders.
Caveats & Watchpoints
Netflow figures show the direction of movement but do not confirm final ownership intent (coins may move between platforms, into institutional custody, or true self-custody). A sustained shift back to net inflows would reduce the current supply-side support and could contribute to near-term price consolidation.
These metrics remain one input among several and should be monitored alongside price action, broader demand indicators, and overall market liquidity.

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