 Well, Amy, it's time now for the Bloomberg ETF report. And they were pitched as game changers for the U.S. ETF industry, promising to revive the art of stock picking for Wall Street managers worried their strategies would be aped by copycats. But four years after their debut, actively managed strategies that only periodically reveal their holdings are enduring a slow demise. Active non-transparent ETFs, or ANTs, or semi-transparent ETFs, as they are also called,