Exchange Netflow

Netflow is inflows minus outflows to known exchange wallet clusters over a given window (typically daily):

Coins sent from external wallets into an exchange count as an inflow; coins withdrawn from an exchange to an external wallet count as an outflow. A positive netflow means more coin moved onto exchanges than off; a negative netflow means the opposite.

Suppose over one day 12,000 BTC are deposited to exchanges and 9,000 BTC are withdrawn:

A +3,000 BTC day means coin is accumulating on exchanges — latent sell-side supply building up, a mild headwind. Flip the numbers (9,000 in, 12,000 out) and you get −3,000 BTC: coin leaving exchanges into self-custody, the footprint of accumulation. The sign matters more than the exact number, and a multi-week trend matters more than any single day.

Large positive netflow spikes have historically preceded local sell-offs — the most common reason to move a coin onto an exchange is to sell it or use it as collateral, so a surge in inflows is read as a build-up of latent sell pressure, especially when it comes from wallets holding large balances ("whales").

Sustained negative netflow (more withdrawals than deposits) has historically coincided with accumulation phases, as holders move coin into self-custody or cold storage with no near-term intent to sell — a behavior generally read as bullish conviction.

Netflow is a faster, flow-based signalthan the valuation metrics in this glossary — it can shift in days, so it's useful for gauging near-term supply pressure rather than cycle position. Read it as a trend (a multi-week tilt toward inflows or outflows), watch for whale-sized spikes, and confirm against the individual large-transaction detail in the Whale Tracker rather than reacting to a single aggregate print.

Exchange flows power Alphabit's Whale Tracker, which surfaces the large individual transactions and exchange movements that make up the aggregate netflow figure. Flow signals are inherently noisier and more short-term than the valuation and cycle families the Risk Model scores, so Alphabit keeps them in the dedicated tracker rather than letting them drive the weekly risk read.

Not all exchange inflows are sell orders — deposits also fund derivatives collateral, arbitrage, or simple wallet reshuffling by the exchange itself, any of which can produce a large netflow spike with no actual change in sell intent. Exchange wallet labeling is also imperfect and updated by third-party analytics providers, so netflow data can revise after the fact as new wallet clusters are identified. Growing use of derivatives and off-exchange custody has also made spot netflow a less complete picture of true supply pressure than it once was.