TickerFacts.

Interactive Brokers Group, Inc. (IBKR): Weighted Average Diluted Shares

Annual figures by period end, from SEC filings.

Stock splits: 4-for-1, first reflected in a filing dated 2025-08-06. Figures are as filed: per-share figures and share counts last reported before a split are on the old share basis, so changes and growth rates across a split are not shown. Splits are read from the filings' own restatements, so a share conversion in a merger or reorganization shows up the same way.

443.86M
Year ended 2025-12-31
2008-12-31: 41.46M2009-12-31: 41.80M2010-12-31: 42.50M2011-12-31: 44.36M2012-12-31: 47.07M2013-12-31: 50.92M2014-12-31: 57.71M2015-12-31: 62.51M2016-12-31: 67.30M2017-12-31: 70.90M2018-12-31: 74.27M2019-12-31: 76.83M2020-12-31: 80.64M2021-12-31: 95.01M2022-12-31: 101.30M2023-12-31: 423.39M2024-12-31: 436.01M2025-12-31: 443.86M443.86M
2008-12-31 Weighted Average Diluted Shares (shares) 2025-12-31

Paler bars were last filed before a stock split, on the old share basis.

Period endedWeighted Average Diluted SharesChange YoYSource filing
2025-12-31443.86M+1.8%2026-02-27, From 2025-01-01
2024-12-31436.01M+3.0%2026-02-27, From 2024-01-01
2023-12-31423.39Mn/c2026-02-27, From 2023-01-01
2022-12-31101.30M+6.6%2025-02-27, From 2022-01-01
2021-12-3195.01M+17.8%2024-02-27, From 2021-01-01
2020-12-3180.64M+5.0%2023-02-24, From 2020-01-01
2019-12-3176.83M+3.4%2022-02-25, From 2019-01-01
2018-12-3174.27M+4.7%2021-03-01, From 2018-01-01
2017-12-3170.90M+5.4%2020-02-28, From 2017-01-01
2016-12-3167.30M+7.7%2019-02-28, From 2016-01-01
2015-12-3162.51M+8.3%2018-03-01, From 2015-01-01
2014-12-3157.71M+13.3%2017-02-28, From 2014-01-01
2013-12-3150.92M+8.2%2016-02-29, From 2013-01-01
2012-12-3147.07M+6.1%2015-03-02, From 2012-01-01
2011-12-3144.36M+4.4%2014-03-03, From 2011-01-01
2010-12-3142.50M+1.7%2013-03-08, From 2010-01-01
2009-12-3141.80M+0.8%2012-08-31, From 2009-01-01
2008-12-3141.46Mn/a2011-02-28, From 2008-01-01