X0101 EFFECT 33 LIVE 2018-01-09 16:00:00

N-1A

0001710607 AMERICAN CENTURY ETF TRUST 333-221045 S000060785 American Century Diversified Corporate Bond ETF C000197601 American Century Diversified Corporate Bond ETF S000060786 American Century STOXX U.S. Quality Value ETF C000197602 American Century STOXX U.S. Quality Value ETF