JPMorgan scales back Jane Street financing amid growing bond market rivalry - FT

JPMorgan Chase & Co has reduced the financing extended to Jane Street following the firm's expansion into U.S. Treasury market-making, as reported by the Financial Times. This move underscores the growing competition between Wall Street's established dealers and non-bank trading firms. The financing cut, equivalent to 5% of Jane Street's overall fixed-income credit lines, did not materially affect the firm's performance.

Nevertheless, it highlights internal tensions at JPMorgan, where traders expressed frustration over providing prime financing to a competitor directly challenging its core bond-dealing business. This strategic retreat is not an isolated event, as major investment banks are reassessing their exposure to rapidly expanding algorithmic trading rivals.

JPMorgan had previously limited certain trading capabilities provided to Citadel Securities after the market maker introduced client-facing offerings that directly competed with the bank's equities business. Non-bank trading firms now account for 10% of total industry revenues in fixed income, currencies, and commodities, with Jane Street alone executing over $900 billion in bond trades in 2025, generating $40 billion in trading revenue.

Despite posting roughly $40 billion in revenue as of August, Jane Street suffered a $15 billion loss in July due to AI equity bets and an investment in a hedge fund. This development suggests that Wall Street's willingness to support its non-bank rivals may be reaching a breaking point, with other major lenders potentially tightening liquidity lines to protect their dominant market-making positions.