JPMorgan Scales Back Financing to Jane Street Amid Rising Tensions

JPMorgan Chase & Co. has scaled back bond trading financing to Jane Street, a quantitative trading giant, amid rising tensions between Wall Street banks and non-bank institutions.

The move, which represents roughly 5% of Jane Street's total fixed-income financing across banks, is seen as a signal of the growing internal contradiction at JPMorgan: the bank has helped nurture a formidable competitor while confronting the erosion of its core business.

Jane Street has transformed in recent years from a low-profile proprietary trading firm into a heavyweight participant in global markets. Its bond trading volume exceeded $900 billion last year, and its 2024 trading revenue reached $40 billion, just shy of JPMorgan's figure.

Raman Kalra, head of non-bank liquidity provider analysis at Crisil Coalition Greenwich, noted that as bond market trading increasingly migrates to electronic platforms, trading firms like Jane Street have benefited significantly from fixed income being one of the few areas still dominated by phone and voice trading.