That sounds good in theory, but I haven’t come across a codebase that’s really optimized and free of unnecessary imports, especially in large companies.
And when you have to depend on external libraries beyond your control, how do you typically handle those situations?
Being a market maker vs "We have a fancy trading algorithm that statistically is never going to outperform just buying VOO and holding it, but the thing is if you get lucky, it could" are two very different things lol
Moreover, I would be very surprised if the majority of their $8 billion annual profit came from client market making.
HRT is a prop firm, which means they don't have outside investors. They invest their own money like you said, no income from fees. You just proved that you have no idea what you are talking about.
> "We have a fancy trading algorithm that statistically is never going to outperform just buying VOO and holding it, but the thing is if you get lucky, it could".
Isn’t it actually the opposite? they pay for order flow instead? They should be making money from bid-ask spread, not fees.