Bitcoin Exchange Inflow and Outflow (BTC Spot Netflow)

Bitcoin inflow and outflow data tracks value moving into and out of exchange wallets. Netflow is the difference:

Netflow = inflows − outflows over the chosen window (24h, 7d or 30d).

A positive figure means more value arrived at an exchange than left it. A negative figure means withdrawals exceeded deposits. The all-exchange total adds up the netflow of every tracked venue, so it can be positive while many individual exchanges show outflows. The “Exchanges with inflows” count (for example, 20 of 78) shows how many venues are on each side of that total.

Where the numbers come from

The figures come from DefiLlama’s CEX transparency data, which follows the on-chain wallets each exchange has published as proof of reserves. The data updates hourly. Flows are stated in US dollars, so the same quantity of coins has a different dollar value at a different market price. An exchange appears only if it has disclosed wallets, and flows through wallets it has not listed are not counted.

Reading the 30d % of assets column

This column scales the 30-day netflow against the exchange’s current assets:

30d % of assets = 30-day netflow ÷ assets × 100

Hypothetical example: an exchange holding $500M that received a net $100M over 30 days shows +20%. A large exchange holding $100B would show only +0.1% on the same $100M. The percentage measures how much a venue’s holdings changed relative to its size. It does not show which venues moved the most dollars, so read it together with the dollar columns. For the holdings themselves, see Bitcoin exchange balance.

What drives flows, and the limits

Deposits come before selling, margin posting or transfers between venues. Withdrawals can mean moving coins into self-custody, OTC settlement or a transfer to another platform. The data shows that value moved, not why it moved. An exchange that consolidates wallets, or adds and removes addresses from its disclosure, can produce a large swing with no change in customer behavior. A single venue’s move can also dominate the aggregate total.

Spot ETF custody sits outside this dataset and is tracked separately under Bitcoin ETF flows.