You could imagine the spread going the other way, though. If everyone really was clamoring to short bitcoin, and if the futures offered a more convenient way to do it than the bitcoin exchanges, then you'd expect the short sellers to pay a premium to short via futures. Instead of selling a bitcoin at $18,000 today, they'd be willing to sell a synthetic bitcoin for $17,500, paying the spread to an arbitrageur who was willing to do the actual shorting for them. But the fact that the spread is mostly positive, and that bitcoin's price has been mostly going up, suggests that the demand has mostly been for synthetic long positions, not short.

The Board has determined that its leadership structure is appropriate in light of the characteristics of the Trust and each of the Funds. These characteristics include, among other things, the fact that all Funds are organized under one Trust; all Funds are exchange-traded funds; all Funds have common service providers; and that the majority of Funds are geared funds, with similar principal investment strategies. As a result, the Board addresses governance and management issues that are often common to all or most of the Funds. In light of these characteristics, the Board has determined that a four-member Board, including three Independent

Note that you could just keep bitcoin on CryptoFacilities waiting to make the trade so you don't have to wait to move the bitcoin you bought over. This is called see-saw arbitrage model, where you keep funds on both exchanges to avoid having to wait. This is fine, but you can't ignore that there is extra capital being used in the play, so it affects your rate of return and capital utilisation. We will not use this method, we will do a full, complete, legitimate arbitrage process.