Bitcoin futures ETFs are designed to allow investors to make trades on futures contracts and away from the usual means of crypto exchanges like Binance, which have come under greater scrutiny from regulators worldwide.
The CFPB names more specific risks that consumers should be prepared for, including volatile exchange rates, potential high fees on exchange platforms, and fraud risk. If your funds are lost or stolen, they can be especially difficult to recover, thanks to the decentralized nature of blockchain and lack of any governmental oversight.

We also consider two additional factors that account for the finding that in some periods prices drift away from fundamentals. The first factor is the return of Bitcoin. We argue that Bitcoin, being the largest and most traded cryptocurrency, is the most perceptible to sentiment and speculative trading by investors. Thus, as a factor, it can capture periods when trading forces unrelated to fundamentals are the strongest. The second factor is a cryptocurrency price momentum factor that we construct following the seminal work of Jegadeesh and Titman (1993). Momentum effects have been linked to investor psychology (e.g. Barberis et al. 1998).
Spot trading means you’re not technically “buying” the cryptocurrency, but instead trading your USD for it through either a market or a limit order. A market order means you agree to trade for the currency at the current market price. A limit order lets you put in a designated price at which you want the trade to occur, and when the currency reaches that price, the trade happens automatically. These orders then incur “maker” (for limit orders) or “taker” (for market orders) fees — though on Binance.US, there’s just a standard 0.1% fee.