Shares in the lender have almost doubled in the past 12 months amid an economic recovery, resilient investment markets and a commencement of share buybacks.
Barclays has already recorded a strong profit rebound in the first half of 2021, posting pre-tax profits of £5 billion against £1.3bn in the same period a year earlier.
Analysts are expecting a further year-on-year improvement when the bank reports on third-quarter trading later this week. It made a profit of £1.1bn a year ago.
Russ Mould, investment director at AJ Bell, said the City would be looking beyond the profit numbers at a range of factors, including loan growth relative to deposit growth, net interest margins, loan provisions and the performance of the investment banking operation.