Citigroup (C) Q3 Earnings Beat Estimates, Expenses Escalate Posted byZacks Equity Research October 14, 2021 Leave a comment on Citigroup (C) Q3 Earnings Beat Estimates, Expenses Escalate Citigroup’s (C) Q3 numbers are driven by strong results in the investment banking and equity markets. However, rising expenses and lower revenues in GCB are undermining factors.