Form 497 AMERICAN CENTURY ETF

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(NYSE: KORP) Delayed: 45.67 --0 (-0%)
Previous Close $45.67    52 Week High
Open $45.67    52 Week Low
Day High $45.70    P/E N/A 
Day Low $45.64    EPS
Volume 89,877       

(NYSE: QCON) Delayed: 47.93 --0 (-0%)
Previous Close $47.93    52 Week High
Open $47.93    52 Week Low
Day High $47.93    P/E N/A 
Day Low $47.93    EPS
Volume 987,077