[4] It employs more than 2,600[5] people in six offices in New York, London, Hong Kong, Amsterdam, Chicago, and Singapore, and trades a broad range of asset classes on more than 200 venues in 45 countries.

[7] Jane Street was co-founded by Tim Reynolds, Rob Granieri, Marc Gerstein, and Michael Jenkins.

[12] During the COVID-19 pandemic, the firm saw its revenue jump 54% to a record of $10.6 billion during the year ended in March 2021.

As well as high-frequency trading, it in some cases maintained positions for hours, even days or sometimes weeks, which is essential for ETFs that track less-traded markets.

It released these numbers as part of a debt deal which aimed to expand the amount of cash on Jane Street's balance sheet from $4.3bn to $5.6bn.