No bank is getting killed by Citadel. The numbers are on a different scale completely. JP Morgan makes over $40B a year. The entire proprietary HFT industry g

No bank is getting killed by Citadel. The numbers are on a different scale completely. JP Morgan makes over $40B a year. The entire proprietary HFT industry globally makes a fraction of that. Citadel almost certainly less than 5% of that number in a typical year.