The ETF arena now has so many investment options, that many areas in the market have become over-represented as more and more issuers come out with very similar looking ETFs competing solely on the basis of price.
How Much Does Your ETF Really Cost? Let’s Discuss an Active ETF Expense Ratio vs. Index ETFs vs. Mutual Funds
This component consists of a sales charge imposed on purchases that gets taken out from your initial investment and the second component is the transaction fees on purchases or redemptions.
This means that they can implement their investment strategy by choosing to invest in other ETFs instead of individual securities. This also means that the fund will have to pay the expenses of the underlying ETFs.