Interactive Brokers (IBKR) Shares Outstanding (2009 - 2026)

Interactive Brokers has disclosed Shares Outstanding across 18 years of filings, most recently posting $445.5 million for Q1 2026.

• Shares Outstanding for Q1 2026 came in at $445.5 million, up 2.07% year-over-year; the trailing twelve-month figure through Mar 2026 was $445.5 million (up 2.07% YoY), and the FY2025 annual result was $400.0, down 100.0% from the prior year.
• Shares Outstanding came in at $445.5 million for Q1 2026 at Interactive Brokers, up from $400.0 in the prior quarter.
• In the past five years, Shares Outstanding ranged from a high of $446.1 million in Q1 2026 to a low of $98.4 million in Q1 2022.
• The 5-year median for Shares Outstanding is $428.9 million (2024), against an average of $318.2 million.
• Across the five-year window, Shares Outstanding jumped 319.1% in 2022 and slumped 100.0% in 2025, its largest moves.
• Interactive Brokers' Shares Outstanding stood at $412.2 million in 2022, then advanced by 4.0% to $428.7 million in 2023, then grew by 1.76% to $436.2 million in 2024, then plunged by 100.0% to $400.0 in 2025, then jumped by 111368574.75% to $445.5 million in 2026.
• The last three Shares Outstanding figures came in at $445.5 million (Q1 2026), $400.0 (Q4 2025), and $445.9 million (Q3 2025), per Business Quant data.