According to Eric Balchunas, ETFs took in a record $1.48 trillion in 2025, roughly $6 billion per day and 28% above last year’s record; he added that VOO led with $138 billion in net inflows, 18% above its prior record, and 3,525 ETFs, or 72% of the total, posted net inflows based on his final leaderboard update on X (source: Eric Balchunas, Jan 2, 2026).