yes, market making bots. accumulation algos. averaging down when investing long term works for me or in panics. maybe, the only place where it doesn't make sense is if your strategy is short term prediction, place a bet, and fail.
citadel has both an asset manager (hedge fund) and separately a broker dealer (market maker). i think virtu and jane street are only market makers/ trade their own money. name a hedge fund that is a market maker. or better, define market maker.
automated trading. I wrote a system using akka that handled it rather easily. I can send it to you if you have github or bitbucket and if I remember my password. It's pretty old
https://akka.io/
you can change the zero (clientid) to something else to open multiple connections.
this.client.eConnect("127.0.0.1", port, 0);
won't using one connection with multiple threads require synchronization anyway? Easier to just run 3 separate apps that do what you want and forget the threading
I hope there's more wokeness. It's a competitive world and I take every advantage I can. As a side note, unfortunately those elite schools that stopped requiring SATs briefly are getting discounted by HR for specific class years. I want to compete against those class years :D.
human eyeball? is there bid/offer posted? penny the side you want and see what happens. the other side to this a computer program making markets on thousands of other things