You'll need a lawyer specialized in the field. Check the SEC filings for ETFs similar to the one you want to start, they have the law firm listed. It costs a l

You'll need a lawyer specialized in the field. Check the SEC filings for ETFs similar to the one you want to start, they have the law firm listed. It costs a lot of money and is a slow process, usually performed by professionals with many years of experience in finance. It's almost certainly a bad idea for you to pursue the idea.