ax1
Legend
Oh gotcha. I just assumed buying and selling only happened on a particular exchange, not cross exchanges. So it is like cross-play Warzone!
With Robbinghoods specifically they used Shytadel to route more than half of all their orders and if I got the story right the hit was on Shytadel to have Robbinghoods exucute the halt/limit on buying (initially they totally halted it=fast crash.) If I remember correctly they also had WeBull halt buying at that time, but at least WeBull's CEO was angered by this and showed it publicly at that time.
Im not sure how the system works as a whole but the way this looks to me as these new "for the people" apps that popped up are functioning through deals with the big hedgefunds. I have to research this more dont take what Im saying in this post as fact.