Interactive Brokers Group, Inc. (IBKR) › Weighted Average Diluted SharesInteractive Brokers Group, Inc. (IBKR) — Weighted Average Diluted SharesAnnual figures by period end, from SEC filings.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: 443.86M443.86M2008-12-31Weighted Average Diluted Shares (shares)2025-12-31Period endedWeighted Average Diluted SharesChange YoYSource filing2025-12-31443.86M+1.8%2026-02-27From 2025-01-012024-12-31436.01M+3.0%2026-02-27From 2024-01-012023-12-31423.39M+318.0%2026-02-27From 2023-01-012022-12-31101.30M+6.6%2025-02-27From 2022-01-012021-12-3195.01M+17.8%2024-02-27From 2021-01-012020-12-3180.64M+5.0%2023-02-24From 2020-01-012019-12-3176.83M+3.4%2022-02-25From 2019-01-012018-12-3174.27M+4.7%2021-03-01From 2018-01-012017-12-3170.90M+5.4%2020-02-28From 2017-01-012016-12-3167.30M+7.7%2019-02-28From 2016-01-012015-12-3162.51M+8.3%2018-03-01From 2015-01-012014-12-3157.71M+13.3%2017-02-28From 2014-01-012013-12-3150.92M+8.2%2016-02-29From 2013-01-012012-12-3147.07M+6.1%2015-03-02From 2012-01-012011-12-3144.36M+4.4%2014-03-03From 2011-01-012010-12-3142.50M+1.7%2013-03-08From 2010-01-012009-12-3141.80M+0.8%2012-08-31From 2009-01-012008-12-3141.46M—2011-02-28From 2008-01-01Other metrics: RevenueCost of RevenueGross ProfitOperating IncomeNet IncomeEPS (Diluted)Total AssetsTotal LiabilitiesShareholders' EquityCash & EquivalentsOperating Cash FlowCapital ExpendituresShares OutstandingDividends Per ShareEPS (Basic)