Virtu is a huge market maker. They are/were 3-5% of all equity trades in the US [0]. They make $200 million a year in profit [1]. [0] https://online.wsj.com/pu

Virtu is a huge market maker. They are/were 3-5% of all equity trades in the US [0]. They make $200 million a year in profit [1]. [0] https://online.wsj.com/public/resources/documents/VirtuOverview.pdf https://online.wsj.com/public/resources/documents/VirtuOverv... [1] https://en.wikipedia.org/wiki/Virtu_Financial https://en.wikipedia.org/wiki/Virtu_Financial