Barclays Plc has raised the gross notional value of its prime‑brokerage trades with Qube Research & Technologies (QRT) to exceed $100 billion, according to Bloomberg reporting that cites people with knowledge of the matter. The $100 billion figure represents the gross face value of all positions and does not account for any offsetting trades. QRT, which spun out of Credit Suisse eight years ago, is now one of Barclays’ largest prime‑brokerage clients and is described as a driver of the bank’s prime‑brokerage business. Prime brokerage has emerged as a significant revenue generator for Wall Street banks, coinciding with the growth of the hedge‑fund industry to a $5.6 trillion market size, where multistrategy funds rely heavily on leverage. Regulatory filings indicate that QRT also maintains relationships with other major prime brokers, including JPMorgan Chase & Co., Goldman Sachs Group Inc., Morgan Stanley and UBS Group AG. In addition, QRT has relationships with 15 banks for equities and 30 banks for fixed‑income repurchase agreements. The article was generated with AI assistance and reviewed by an editor, with the original source credited to Bloomberg and Reuters.