Jane Street and Castle Securities' annual trading revenue is moving towards a record high.

Jane Street Group and Castle Securities saw an increase in trading revenue in the third quarter, with the potential to achieve a record high for the year. The dominant position of Wall Street financial institutions in this business is further weakened. Sources indicated that Jane Street's trading revenue increased by 18% to $6.83 billion, ranking just below JPMorgan Chase and Goldman Sachs. According to other sources, Castle Securities saw a 9% increase in trading revenue to $2.64 billion. The performance growth of Jane Street and Castle Securities is mainly due to the surge in trading activity and price volatility seen multiple times this year, largely driven by Trump's tariffs and policy changes. The White House's frequent policy changes have prompted investors to adjust their portfolios regularly.