According to ChainCatcher, U.S. market making firms Citadel Securities and Jane Street Group LLC are expected to set records for annual revenue.

Citadel Securities’ net trading revenue in the first half of the year rose 81% to $4.9 billion from a year earlier, while Jane Street’s rose 78% to $8.4 billion, both well above the pace needed to hit annual records, according to people familiar with the matter.