US spot Bitcoin ETFs took in a net $31.0 million Monday, down from $134.5 million Friday and roughly $1 billion on September 21. That is demand cooling sharply rather than reversing, and it lands while corporate treasuries keep buying on schedule: Strategy's 1,665 Bitcoin purchase lifted holdings to 847,666 BTC, and Strive added 1,107, more than 2,700 coins worth over $237 million between them.