Form N-1A Cover |
Jul. 31, 2024 |
||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Prospectus [Line Items] | |||||||||||||||||||||||
Document Effective Date | Jun. 16, 2025 | ||||||||||||||||||||||
Document Creation Date | Jun. 16, 2025 | ||||||||||||||||||||||
Document Type | 497 | ||||||||||||||||||||||
Amendment Flag | false | ||||||||||||||||||||||
Registrant Name | First Trust Exchange-Traded Fund IV | ||||||||||||||||||||||
Entity Central Index Key | 0001517936 | ||||||||||||||||||||||
Entity Investment Company Type | N-1A | ||||||||||||||||||||||
Document Period End Date | Jul. 31, 2024 | ||||||||||||||||||||||
First Trust Commercial Mortgage Opportunities ETF | |||||||||||||||||||||||
Prospectus [Line Items] | |||||||||||||||||||||||
Supplement to Prospectus [Text Block] |
Notwithstanding anything to the contrary in the Fund’s Prospectus or Statement of Additional Information, effective June 30, 2025, the Fund’s annual unitary management fee will be reduced to 0.45% of the Fund’s average daily net assets. Accordingly, at such time, the “Fees and Expenses of the Fund” section in the Fund’s prospectus is replaced in its entirety with the following: Fees and Expenses of the Fund The following table describes the fees and expenses you may pay if you buy, hold and sell shares of the Fund. Investors may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below. Shareholder Fees
Annual Fund Operating Expenses
Example The example below is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then hold or sell all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain at current levels. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
|