Types of Exchange Traded Funds (ETFs)
United States Market Index ETFs
Foreign Market Index ETFs
Foreign Currency ETFs
Sector and Industry ETFs
Commodity ETFs
Derivative ETFs
Style ETFs
Bond ETFs
ETNs — Exchange Traded Notes
Inverse ETFs
Leveraged ETFs
Actively Managed ETFs
Dividend ETFs
Innovative ETFs

What is an ETF?
ETF stands for “exchange-traded fund” and describes a kind of investment fund where the price of assets like gold, stocks and oil can be tracked. These assets can then be traded on exchanges, just like conventional stocks.

how ETF IS RELATED TO BITCOIN
Bitcoin ETF - when you buy bitcoin ETF. ETF tracks real time tracking of bitcoin price.
the difference is that when you invest in bitcoin etf you have lots of bitcoins without buying and storing it.

how you can buy bitcoin ETF - Example

this company provides same service.
The Greyscale Investment’s Bitcoin Investment Trust (GBTC)

This company is holding more than 175,000 Bitcoins currently

benefits of purchase share
ownership of cryptocurrencies
assets are stored with Xapo Inc. This is a deep, cold form of storage and it is highly robust.







Michael Strutton, the CEO of Ironwood says in his Medium post
IF THE INTRODUCTION OF BITCOIN ETFS ATTRACTS 20% OF THE AVAILABLE EQUITIES TRADING MARKET (122 MILLION) THAT WOULD ADD 24 MILLION NEW INVESTORS!”