Wow, we got all 4 S&P 500 ETFs in the Top 5 inflows yesterday. I've seen three but never four. And the fifth one is QQQ (couldn't dial up a more bullish leaderboard) and the total daily flow was $14b, weekly $36b. These are BIG numbers. ETFs used to do $1-2b/day, now it's $4-7b. Decembers are usually big months tho bc of Tax loss harvesting.(Eric Balchunas)