Jane Street Group LLC generated $10.6 billion in net trading revenue last year — one of many big numbers demonstrating its presence as a major market maker eyeing ever-more growth. The firm’s trading haul — roughly flat on the prior year — was among the litany of financial markers Jane Street disclosed to investors as part of a debt deal it’s seeking to fuel further expansion. Adjusted earnings last year were $7.4 billion, the documents seen by Bloomberg showed. The business is backed by $21.3 billion of members’ equity — which represents the majority of the firm’s trading capital. It had 2,631 employees at the end ... (full story)