CEFI — Crypto ETF Flow Index

Every trading day CEFI adds up the net flows of all spot ETFs on the 16 tracked assets, in dollars. Three parts are scored against the past year: today's flow, smoothed (40%), the net flow of the last 20 trading days (30%) and breadth, the share of funds with inflows (30%). Zero flow scores 50; a typical inflow day scores about 69 and a typical outflow day about 31. There is one composite index — no per-asset variants.