Interactive Brokers (IBKR) Shares Outstanding (Diluted Average) (2009 - 2025)

Interactive Brokers has disclosed Shares Outstanding (Diluted Average) across 6 years of filings, most recently posting $443.9 million for Q4 2025.

• Shares Outstanding (Diluted Average) for Q4 2025 came in at $443.9 million, up 1.8% year-over-year; the trailing twelve-month figure through Dec 2025 was $443.9 million (up 1.8% YoY), and the FY2025 annual result was $443.9 million, up 1.8% from the prior year.
• Shares Outstanding (Diluted Average) came in at $443.9 million for Q4 2025 at Interactive Brokers, up from $436.0 million in the prior quarter.
• In the past five years, Shares Outstanding (Diluted Average) ranged from a high of $443.9 million in Q4 2025 to a low of $423.4 million in Q4 2023.
• The 3-year median for Shares Outstanding (Diluted Average) is $436.0 million (2024), against an average of $434.4 million.
• Across the five-year window, Shares Outstanding (Diluted Average) climbed 2.98% in 2024 and rose 1.8% in 2025, its largest moves.
• Interactive Brokers' Shares Outstanding (Diluted Average) stood at $423.4 million in 2023, then gained by 2.98% to $436.0 million in 2024, then increased by 1.8% to $443.9 million in 2025.
• The last three Shares Outstanding (Diluted Average) figures came in at $443.9 million (Q4 2025), $436.0 million (Q4 2024), and $423.4 million (Q4 2023), per Business Quant data.