Interactive Brokers Group, Inc. (IBKR) - Dilution Analysis
Visualizing historical and potential share dilution over time
Dilution Analysis
Risk Assessment Details
Summary
IBKR currently has 445M outstanding shares. with minimal authorized share overhang for future dilution. The company has minimally diluted shareholders by 4.2% over the past 2 years. Recent corporate actions include 1 stock split (positive for accessibility).
Share Structure Timeline
Historical Data Points
| Date | Event | Outstanding | Supply |
|---|---|---|---|
| May 07, 2026 |
10-Q filing | 445.4M shares outstanding |
450M | 0 |
| Nov 05, 2025 |
10-Q filing | 446.5M shares outstanding |
450M | 0 |
| Aug 06, 2025 |
10-Q filing | 441.4M shares outstanding |
440M | 0 |
| Jul 30, 2025 |
8-K filing: Interactive Brokers Group, Inc. filed a Prospectus Supplement to take down 3,836,000 shares of the Company's common stock off its shelf Registration Statement on Form S-3. |
440M | 0 |
| Jun 17, 2025 |
Stock Split
8-K filing: Stock split 4-for-1 | Outstanding: 109,002,938 → 436,011,752 |
440M | 0 |
| May 08, 2025 |
10-Q filing | 108.9M shares outstanding |
110M | 0 |
| Feb 27, 2025 |
10-K filing | 109.0M shares outstanding |
110M | 0 |
| Nov 07, 2024 |
10-Q filing | 108.8M shares outstanding |
110M | 0 |
| Aug 05, 2024 |
10-Q filing | 108.6M shares outstanding |
110M | 0 |
| Jul 25, 2024 |
8-K filing: Interactive Brokers Group, Inc. filed a Prospectus Supplement under Rule 424(b)(5) to take down 333,000 shares of the Company's common stock off its shelf Registration Statement on Form S-3. |
110M | 0 |
| May 06, 2024 |
10-Q filing | 107.1M shares outstanding |
110M | 0 |
| Feb 27, 2024 |
10-K filing | 105.8M shares outstanding |
110M | 0 |
| Nov 06, 2023 |
10-Q filing | 107.0M shares outstanding |
110M | 0 |
| Aug 08, 2023 |
10-Q filing | 104.5M shares outstanding |
100M | 0 |
| Jul 27, 2023 |
8-K filing: Interactive Brokers Group, Inc. filed a Prospectus Supplement under Rule 424(b)(5) to take down 2,632,748 shares of the Company's common stock off its shelf Registration Statement on Form S-3. |
100M | 0 |
| Jul 26, 2023 |
8-K filing: Interactive Brokers Group, Inc. filed a Prospectus Supplement to register 630,000 shares of the Company's common stock from its shelf Registration Statement. |
100M | 0 |
| May 08, 2023 |
10-Q filing | 103.0M shares outstanding |
100M | 0 |
| Feb 24, 2023 |
10-K filing | 101.3M shares outstanding |
100M | 0 |
| Feb 02, 2023 |
8-K filing: Mr. Thomas Peterffy, founder and Chairman of Interactive Brokers Group, Inc., adopted a Rule 10b5-1 trading plan to sell up to 20,000 shares of the Company's Class A common stock per day until July 29, 2023. |
100M | 0 |
| Nov 08, 2022 |
10-Q filing | 102.6M shares outstanding |
100M | 0 |
| Aug 09, 2022 |
10-Q filing | 99.7M shares outstanding |
100M | 0 |
| Aug 02, 2022 |
8-K filing: Mr. Thomas Peterffy, founder and Chairman Interactive Brokers Group, Inc., adopted a Rule 10b5-1 trading plan to sell 1,000,000 of the Company's Class A common stock received in partial redemption of his interests in IBG Holdings LLC. |
98M | 0 |
| Aug 01, 2022 |
8-K filing: Interactive Brokers Group, Inc. completed a takedown of 3,271,390 shares of its common stock from its shelf Registration Statement on Form S-3 filed with the SEC on July 27, 2020. |
98M | 0 |
| May 09, 2022 |
10-Q filing | 98.2M shares outstanding |
98M | 0 |
| Feb 25, 2022 |
10-K filing | 95.0M shares outstanding |
95M | 0 |
| Nov 09, 2021 |
10-Q filing | 97.0M shares outstanding |
97M | 0 |
| Aug 09, 2021 |
10-Q filing | 92.2M shares outstanding |
92M | 0 |
| Aug 03, 2021 |
8-K filing: Dr. Thomas A.J. Frank, Executive Vice President and Chief Information Officer of Interactive Brokers Group, Inc., adopted a Rule 10b5-1 trading plan to sell 2,000,000 shares of the Company's Class A common stock. |
91M | 0 |
| Jul 30, 2021 |
8-K filing: Interactive Brokers Group, Inc. filed a legal opinion letter regarding the validity of 6,079,542 shares of the Company's common stock from its shelf Registration Statement on Form S-3. |
91M | 0 |
| May 10, 2021 |
10-Q filing | 90.8M shares outstanding |
91M | 0 |
| Mar 01, 2021 |
10-K filing | 90.8M shares outstanding |
91M | 0 |
| Nov 09, 2020 |
10-Q filing | 90.8M shares outstanding |
91M | 0 |
| Nov 03, 2020 |
8-K filing: On October 30, 2020, Mr. Thomas Peterffy, Chairman and Founder of Interactive Brokers Group, Inc., Paul J. Brody, Chief Financial Officer of the Company, and Dr. Thomas A.J. Frank, Executive Vice President and Chief Information Officer of the Company, each adopted Rule 10b5-1 trading plans to sell shares of the Company's Class A common stock. |
78M | 0 |
| Oct 30, 2020 |
8-K filing: Interactive Brokers Group, Inc. completed a takedown of 11,710,608 shares of its common stock from its shelf Registration Statement on Form S-3. |
78M | 0 |
| Aug 24, 2020 |
8-K filing: A limited liability company owned by Mr. Earl H. Nemser, Vice Chairman of Interactive Brokers Group, Inc., adopted a Rule 10b5-1 trading plan to sell 1,000,000 shares of IBKR Class A common stock. |
78M | 0 |
| Aug 20, 2020 |
8-K filing: Interactive Brokers Group, Inc. completed the takedown of 1,000,000 shares of its common stock from its shelf Registration Statement on Form S-3. |
78M | 0 |
| Aug 07, 2020 |
10-Q filing | 78.0M shares outstanding |
78M | 0 |
| May 11, 2020 |
10-Q filing | 76.8M shares outstanding |
77M | 0 |
| Feb 28, 2020 |
10-K filing | 76.8M shares outstanding |
77M | 0 |