How to pick the best spot bitcoin ETF to buy and what to know about their fees, according to a 10-year ETF research expert

• Investors can expect close to a dozen bitcoin ETFs to be trading in the US, says Todd Rosenbluth.
• But just because they hold the same asset doesn’t mean they will all be the same, he added.
• Investors should pay attention to the funds’ fees and their management teams. 

The crypto market is awaiting the approval of a wave of spot bitcoin exchange-traded funds.