It appears the answer is, because Coinbase.  Which is slightly troubling, because isn't coinbase handling all of the behind the scenes, off the chain transactions for the US ETFs?  I really want to hate that font, but just can't.

In other news, how many forced HODLers were created this weekend?   With ETF BTC being mostly frozen in time over the weekend.  How many weekend BTC traders do you all think are employed by the ETFs.  Or is it all, just do what the customer asks, during normal business hours?