Bitcoin ETFs Pull In $999M in a Day, Biggest Haul Since October's Record Run

U.S. spot bitcoin ETFs took in $999 million on Monday. That's the biggest single-day haul since October 6, when the funds pulled in over $1.2 billion and bitcoin printed its all-time high at $126,080.

BlackRock's iShares Bitcoin Trust did most of the lifting with $381.4 million. ARK 21Shares brought in $289.1 million. Fidelity's Wise Origin Bitcoin Fund added $238.8 million. Those three alone are close to $910 million, which tells you where institutional money actually goes when it wants exposure.

Bitcoin traded near $86,552 after touching $87,330 Monday, up almost 13% on the week. But the number that matters more than the price came from Bloomberg's James Seyffart. The average ETF buyer is back in profit, with the estimated cost basis crossing above $81,720 for the first time since January. That's a psychological unlock. Everybody who got in near the top of the last run is finally not underwater.

So what flipped the switch? The AI equity trade cooled off. Then in August the Treasury said it would at least double the size of its liquidity-support buyback operations. Analysts point to that pushing 30-year yields lower and softening the dollar. When the risk-free stuff pays less, capital goes hunting for somewhere else to sit. Bitcoin caught that rotation.

CryptoQuant added a second signal Tuesday. Bitcoin crossed above its 365-day moving average, which the firm reads as the end of the bear market.

I'd slow down before declaring anything over. One day of flows is a data point, not a regime. But the cost basis recovery is real and it changes behavior. Investors sitting on gains sell less and hold longer. That's a thinner order book on the way down and a firmer floor underneath it.

The thing to watch is whether these inflows survive a red week, because October's $1.2 billion day landed right before a blowoff top while this one is arriving with bitcoin still 31% below its high.