0001364608 2024-09-30 2024-09-30 0001364608 CIBR:S000050385Member 2024-09-30 2024-09-30 iso4217:USD shares iso4217:USD shares pure false 2025-12-02 2025-12-02 N-1A 0001364608 2024-09-30 497 First Trust Exchange-Traded Fund II <p style="font: 10pt/12pt Arial, Helvetica, Sans-Serif; margin-top: 10pt; margin-right: 0; margin-left: 0; text-align: justify"> Notwithstanding anything to the contrary set forth in the Fund’s summary prospectus and prospectus, the seventh sentence of the third paragraph set forth in the section entitled “Principal Investment Strategies” is hereby deleted in its entirety and replaced with the following:</p> <p style="font: 10pt/12pt Arial, Helvetica, Sans-Serif; margin: 6pt 1in 0; text-align: justify">No security may be weighted less than 0.10%.</p> <p style="font: 10pt/12pt Times New Roman, Times, Serif; margin: 12pt 0 0; text-align: justify"> </p>