New York investment bank Jefferies & Co today delivered a strong set of results for its third quarter, which included a significant year-on-year boost in trading revenues across both fixed income and equities.

The bank, which has a financial year end of November and so publishes results ahead of its larger US rivals, reported net revenues of $739m for the three months to the end of August, 45% up on the same period in 2011. This helped Jefferies post the best nine-month period of revenues in its history, with $2.2bn generated.