This one statistic will give Wall Street stock pickers nightmares

There's a big shift underway in the money-management business. Passive funds, which track indexes, are vacuuming up assets, picking up 72% of all inflows in 2015, according to a survey by Casey Quirk by Deloitte and McLagan. That's right: They garnered $7 of every $10 invested in funds in 2015.