Bitcoin is trading at $83K, while coins are leaving exchanges at the fastest pace since October 2025. Futures buyers, however, have no edge: the positioning index’s 30-day average has stayed just below zero for six consecutive days.
TL;DR
Coins are being actively withdrawn from exchanges, while futures buyers remain cautious. We examine how these two signals fit together and what could change the picture.
Bitcoin Positioning Index
The index shows who is more active in perpetual futures: buyers or sellers. Its 30-day average fell from 7.6 on August 27 to -1.4 on September 28 and has remained below zero since September 23. The last time this happened was in late June and early July, when Bitcoin traded around $60K.
The price rise from $76.4K to $86.6K on September 17-21 failed to give futures buyers a sustained edge: by September 23, the index’s daily reading had dropped to -40.5. If the average continues to fall, sellers’ advantage will grow. A return above zero would indicate a recovery in buying activity.
Bitcoin Exchange Flow
As of September 27, net exchange outflows over the previous seven days averaged 16.1K BTC per day. This is the strongest outflow since early October 2025. A week earlier, the picture was reversed: on September 20, net exchange inflows averaged 7.3K BTC per day. Flows reversed on September 22, and outflows have strengthened every day since.
If the average returns above zero, as it did on September 11-21, the supply of coins on exchanges will start growing again. Combined with a negative positioning index, this would signal a risk of increasing selling pressure. For now, the signals diverge: coins are leaving exchanges, while futures buyers have no edge.
FAQ
Does an index reading below zero mean the market has turned bearish? No. A reading of -1.4 is close to zero and shows that futures buyers have lost their edge, but sellers do not yet have a meaningful advantage.
Does an outflow of 16K BTC per day represent buying volume? No. It is the average daily net exchange outflow over a week. It means the supply of coins on exchanges is shrinking and may indicate accumulation.
Conclusions
Bitcoin is trading at $83K, and coins are leaving exchanges at the fastest pace since October 2025, but futures buyers have no edge. A return of the positioning index above zero, alongside continued outflows, would strengthen the bullish signal. The main risk in this combination is exchange flows turning positive while the index remains negative. In that case, the supply of coins on exchanges would start growing, while futures buyers would still lack an edge.
Live Charts
Explore the metrics behind this brief with live, auto-updating charts:
Exchange Netflow - Net BTC moving to and from exchanges across positive and negative flow regimes.
Open Interest (BTC) - Total futures positioning and 7-day BTC-denominated change.
Funding Rates - Perpetual futures funding to track long-side or short-side leverage pressure.
Coinbase Premium Index - Coinbase vs global market premium as a proxy for US spot demand pressure.
BTC US ETF Flow Monitor - US spot Bitcoin ETF daily flow, BTC-denominated accumulation, and fund leadership.