According to @EricBalchunas, all four S&P 500 ETFs ranked in the Top 5 net inflows yesterday, with QQQ taking the fifth spot, which he described as a highly bullish leaderboard, source: @EricBalchunas on X, Dec 5, 2025. He reported total ETF net inflows of 14 billion dollars for the day and 36 billion dollars for the week, source: @EricBalchunas on X, Dec 5, 2025. He added that typical ETF daily flows have risen from 1 to 2 billion dollars historically to 4 to 7 billion dollars now, highlighting a strong pickup in participation, source: @EricBalchunas on X, Dec 5, 2025. Crypto market participants can use this broad-based equity ETF flow strength as a risk sentiment input when evaluating BTC and ETH exposure, with the underlying flow data sourced from @EricBalchunas on X, Dec 5, 2025.