Generally speaking more volume is good. I’m happy I can buy/sell most of my stocks instantly and that I don’t pay execution fees. I don’t think most average traders operate on a horizon/scale that’s directly competing with institutional funds.
I got a 718 Cayman which I particularly enjoy because of how barren the interior is. It has a screen with CarPlay which can be helpful for pulling up maps, a rear view camera, and lane change assist (which is just a red light by each mirror). Mostly analog tach too.
It’s just a car that’s meant to drive and not do much more, and it makes me sad seeing how rare that’s become.
How would that work? Would you randomly select a single order posted, go by market participant (like randomly select some entities that posted a trade in this window), and would you allow prices to move during this window?
Brokers are required to give you NBBO or better. You could set up a direct connection to an exchange if you were willing to pay and were sufficiently motivated to deal with all of that