Bitcoin spot ETFs recorded a net inflow of $1.05 billion today—the highest level in 111 days. Such volume can only be moved by institutions and large whales. They’re not playing short-term games: buying through ETFs involves long lock-up periods, complex procedures, and slow entry and exit. To commit $1 billion suggests someone has already run the numbers and believes current value warrants accumulation. The market has been grinding for the past three months, with intermittent ETF inflows. Today’s sudden surge could signal year-end portfolio rebalancing—or that a few major institutions have finally decided to enter.