I don't love Goldman but this is a pretty smart move:

*proprietary access to an exchange like that's dataset has to be incredibly valuable for a trading firm;

*if the trillions of dollars on the sideline in hedge funds, etfs, pensions, etc are ever allowed to enter the space, goldman who already advises many of them will be able to say "hey invest with us cause we already have a relationship and you already thing we're safe.