What are ETFs and what would it change for BTC?

[Donovan XXL]

English is not my native language and I am not a specialist in stock markets.
I hear ETFs might be accepted by the SEC so could you please explain to me what these are and how they could affect the market?

[Menezes]

I think they could be a good thing.
More investors mean more money into bitcoin. It can only be good for the market.
Now the SEC just has to allow them.