U.S. spot bitcoin ETFs set for biggest week in 6 after adding $1.1 billion in three days

The inflows coincide with a rebound in the Coinbase Premium index, signaling renewed U.S. demand. What to know : U.S. spot bitcoin ETFs recorded $1.1 billion in net inflows over three consecutive days, with BlackRock’s IBIT accounting for roughly half. The inflows coincide with a rebound in the Coinbase Premium index, signaling renewed U.S. demand. CME open interest continues to fall, suggesting ETF buying reflects outright long exposure rather than basis trade activity.