COSTAR GROUP, INC. Basic Shares Outstanding (Weighted Average)
COSTAR GROUP, INC. (CSGP) reported Basic Shares Outstanding (Weighted Average) of 404.10 million shares for the 3-month period ending 2026-06-30, per its 10-Q filed 2026-07-29.
Financial Statements › Income Statement › Earnings Per Share
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic · last filed 2026-07-29
- COSTAR GROUP, INC. weighted average number of shares outstanding, basic for the quarter ending 2026-06-30 was 404.10M shares, a 3.69% decline year-over-year.
- COSTAR GROUP, INC. weighted average number of shares outstanding, basic for the quarter ending 2026-03-31 was 413.00M shares, a 0.61% increase year-over-year.
- COSTAR GROUP, INC. weighted average number of shares outstanding, basic for the quarter ending 2025-12-31 was 417.10M shares, a 2.58% increase year-over-year.
- COSTAR GROUP, INC. weighted average number of shares outstanding, basic for the quarter ending 2025-09-30 was 419.90M shares, a 3.22% increase year-over-year.
- COSTAR GROUP, INC. weighted average number of shares outstanding, basic for fiscal 2025 was 416.80M shares, a 2.58% increase from fiscal 2024.
- COSTAR GROUP, INC. weighted average number of shares outstanding, basic for fiscal 2024 was 406.30M shares, a 0.25% increase from fiscal 2023.
- COSTAR GROUP, INC. weighted average number of shares outstanding, basic for fiscal 2023 was 405.30M shares, a 2.27% increase from fiscal 2022.
- COSTAR GROUP, INC. weighted average number of shares outstanding, basic for fiscal 2022 was 396.30M shares, a 1.05% increase from fiscal 2021.
| Period end | Weighted Average Number of Shares Outstanding, Basic 3 month | Weighted Average Number of Shares Outstanding, Basic 3 month as first filed | Weighted Average Number of Shares Outstanding, Basic 6 month | Weighted Average Number of Shares Outstanding, Basic 6 month as first filed | Weighted Average Number of Shares Outstanding, Basic 9 month | Weighted Average Number of Shares Outstanding, Basic 9 month as first filed | Weighted Average Number of Shares Outstanding, Basic 12 month | Weighted Average Number of Shares Outstanding, Basic 12 month as first filed |
|---|---|---|---|---|---|---|---|---|
| 2026-06-30 | 404.10M shares 10-Q · filed 2026-07-29 | 408.50M shares 10-Q · filed 2026-07-29 | 411.40M shares derived: average of 3 quarters · filed 2026-07-29 | 413.52M shares derived: average of 4 quarters · filed 2026-07-29 | ||||
| 2026-03-31 | 413.00M shares 10-Q · filed 2026-04-29 | 415.05M shares derived: average of 2 quarters · filed 2026-04-29 | 416.67M shares derived: average of 3 quarters · filed 2026-04-29 | 417.40M shares derived: average of 4 quarters · filed 2026-07-29 | ||||
| 2025-12-31 | 417.10M shares derived: 10-K 12 month − 10-Q 9 month · filed 2026-02-26 | 418.50M shares derived: average of 2 quarters · filed 2026-02-26 | 418.87M shares derived: average of 3 quarters · filed 2026-07-29 | 416.80M shares 10-K · filed 2026-02-26 | ||||
| 2025-09-30 | 419.90M shares 10-Q · filed 2025-10-29 | 419.75M shares derived: average of 2 quarters · filed 2026-07-29 | 416.70M shares 10-Q · filed 2025-10-29 | 414.15M shares derived: average of 4 quarters · filed 2026-07-29 | ||||
| 2025-06-30 | 419.60M shares 10-Q · filed 2026-07-29 | 415.10M shares 10-Q · filed 2026-07-29 | 412.23M shares derived: average of 3 quarters · filed 2026-07-29 | 410.88M shares derived: average of 4 quarters · filed 2026-07-29 | ||||
| 2025-03-31 | 410.50M shares 10-Q · filed 2026-04-29 | 408.55M shares derived: average of 2 quarters · filed 2026-04-29 | 407.97M shares derived: average of 3 quarters · filed 2026-04-29 | 407.48M shares derived: average of 4 quarters · filed 2026-04-29 | ||||
| 2024-12-31 | 406.60M shares derived: 10-K 12 month − 10-Q 9 month · filed 2026-02-26 | 406.70M shares derived: average of 2 quarters · filed 2026-02-26 | 406.47M shares derived: average of 3 quarters · filed 2026-02-26 | 406.30M shares 10-K · filed 2026-02-26 | ||||
| 2024-09-30 | 406.80M shares 10-Q · filed 2025-10-29 | 406.40M shares derived: average of 2 quarters · filed 2025-10-29 | 406.20M shares 10-Q · filed 2025-10-29 | 406.00M shares derived: average of 4 quarters · filed 2026-02-26 | ||||
| 2024-06-30 | 406.00M shares 10-Q · filed 2025-07-23 | 405.80M shares 10-Q · filed 2025-07-23 | 405.73M shares derived: average of 3 quarters · filed 2026-02-26 | 405.70M shares derived: average of 4 quarters · filed 2026-02-26 | ||||
| 2024-03-31 | 405.60M shares 10-Q · filed 2025-05-01 | 405.60M shares derived: average of 2 quarters · filed 2026-02-26 | 405.60M shares derived: average of 3 quarters · filed 2026-02-26 | 405.55M shares derived: average of 4 quarters · filed 2026-02-26 | ||||
| 2023-12-31 | 405.60M shares derived: 10-K 12 month − 10-Q 9 month · filed 2026-02-26 | 405.60M shares derived: average of 2 quarters · filed 2026-02-26 | 405.53M shares derived: average of 3 quarters · filed 2026-02-26 | 405.30M shares 10-K · filed 2026-02-26 | ||||
| 2023-09-30 | 405.60M shares 10-Q · filed 2024-10-23 | 405.65M shares 10-Q · filed 2023-10-25 | 405.50M shares derived: average of 2 quarters · filed 2024-10-23 | 405.20M shares 10-Q · filed 2024-10-23 | 405.19M shares 10-Q · filed 2023-10-25 | 404.94M shares derived: average of 4 quarters · filed 2025-02-20 | ||
| 2023-06-30 | 405.40M shares 10-Q · filed 2024-07-25 | 405.43M shares 10-Q · filed 2023-07-26 | 405.00M shares 10-Q · filed 2024-07-25 | 404.96M shares 10-Q · filed 2023-07-26 | 404.72M shares derived: average of 3 quarters · filed 2025-02-20 | 402.22M shares derived: average of 4 quarters · filed 2025-02-20 | ||
| 2023-03-31 | 404.50M shares 10-Q · filed 2024-04-24 | 404.49M shares 10-Q · filed 2023-04-26 | 404.38M shares derived: average of 2 quarters · filed 2025-02-20 | 401.15M shares derived: average of 3 quarters · filed 2025-02-20 | 399.20M shares derived: average of 4 quarters · filed 2025-02-20 | |||
| 2022-12-31 | 404.25M shares derived: 10-K 12 month − 10-Q 9 month · filed 2025-02-20 | 399.48M shares derived: average of 2 quarters · filed 2025-02-20 | 397.43M shares derived: average of 3 quarters · filed 2025-02-20 | 396.30M shares 10-K · filed 2025-02-20 | 396.28M shares 10-K · filed 2023-02-22 | |||
| 2022-09-30 | 394.71M shares 10-Q · filed 2023-10-25 | 394.03M shares derived: average of 2 quarters · filed 2023-10-25 | 393.65M shares 10-Q · filed 2023-10-25 | 393.36M shares derived: average of 4 quarters · filed 2024-02-22 | ||||
| 2022-06-30 | 393.34M shares 10-Q · filed 2023-07-26 | 393.12M shares 10-Q · filed 2023-07-26 | 392.91M shares derived: average of 3 quarters · filed 2024-02-22 | 392.79M shares derived: average of 4 quarters · filed 2024-02-22 | ||||
| 2022-03-31 | 392.89M shares 10-Q · filed 2023-04-26 | 392.70M shares derived: average of 2 quarters · filed 2024-02-22 | 392.60M shares derived: average of 3 quarters · filed 2024-02-22 | 392.53M shares derived: average of 4 quarters · filed 2024-02-22 | ||||
| 2021-12-31 | 392.50M shares derived: 10-K 12 month − 10-Q 9 month · filed 2024-02-22 | 392.46M shares derived: average of 2 quarters · filed 2024-02-22 | 392.41M shares derived: average of 3 quarters · filed 2024-02-22 | 392.20M shares 10-K · filed 2024-02-22 | 392.21M shares 10-K · filed 2022-02-23 | |||
| 2021-09-30 | 392.42M shares 10-Q · filed 2022-10-26 | 392.36M shares derived: average of 2 quarters · filed 2022-10-26 | 392.10M shares 10-Q · filed 2022-10-26 | 391.92M shares derived: average of 4 quarters · filed 2023-02-22 | ||||
| 2021-06-30 | 392.31M shares 10-Q · filed 2022-07-27 | 391.94M shares 10-Q · filed 2022-07-27 | 391.75M shares derived: average of 3 quarters · filed 2023-02-22 | 391.71M shares derived: average of 4 quarters · filed 2023-02-22 | ||||
| 2021-03-31 | 391.58M shares 10-Q · filed 2022-04-28 | 39.16M shares 10-Q · filed 2021-04-28 | 391.48M shares derived: average of 2 quarters · filed 2023-02-22 | 391.51M shares derived: average of 3 quarters · filed 2023-02-22 | 387.44M shares derived: average of 4 quarters · filed 2023-02-22 | |||
| 2020-12-31 | 391.37M shares derived: 10-K 12 month − 10-Q 9 month · filed 2023-02-22 | 391.48M shares derived: average of 2 quarters · filed 2023-02-22 | 386.07M shares derived: average of 3 quarters · filed 2023-02-22 | 380.73M shares 10-K · filed 2023-02-22 | 38.07M shares 10-K · filed 2021-02-24 | |||
| 2020-09-30 | 391.59M shares 10-Q · filed 2021-10-27 | 39.16M shares 10-Q · filed 2020-10-28 | 383.41M shares derived: average of 2 quarters · filed 2021-10-27 | 377.18M shares 10-Q · filed 2021-10-27 | 37.72M shares 10-Q · filed 2020-10-28 | 536.70M shares derived: average of 4 quarters · filed 2022-02-23 | ||
| 2020-06-30 | 375.24M shares 10-Q · filed 2021-07-28 | 37.52M shares 10-Q · filed 2020-07-29 | 369.97M shares 10-Q · filed 2021-07-28 | 37.00M shares 10-Q · filed 2020-07-29 | 585.07M shares derived: average of 3 quarters · filed 2022-02-23 | 447.89M shares derived: average of 4 quarters · filed 2022-02-23 | ||
| 2020-03-31 | 36.47M shares 10-Q · filed 2021-04-28 | 689.99M shares derived: average of 2 quarters · filed 2022-02-23 | 472.10M shares derived: average of 3 quarters · filed 2022-02-23 | 363.15M shares derived: average of 4 quarters · filed 2022-02-23 | ||||
| 2019-12-31 | 1.34B shares derived: 10-K 12 month − 10-Q 9 month · filed 2022-02-23 | 689.92M shares derived: average of 2 quarters · filed 2022-02-23 | 472.05M shares derived: average of 3 quarters · filed 2022-02-23 | 363.10M shares 10-K · filed 2022-02-23 | 36.31M shares 10-K · filed 2020-02-26 | |||
| 2019-09-30 | 36.33M shares 10-Q · filed 2020-10-28 | 36.32M shares derived: average of 2 quarters · filed 2020-10-28 | 36.29M shares 10-Q · filed 2020-10-28 | 36.25M shares derived: average of 4 quarters · filed 2021-02-24 | ||||
| 2019-06-30 | 36.31M shares 10-Q · filed 2020-07-29 | 36.27M shares 10-Q · filed 2020-07-29 | 36.23M shares derived: average of 3 quarters · filed 2021-02-24 | 36.20M shares derived: average of 4 quarters · filed 2021-02-24 | ||||
| 2019-03-31 | 36.24M shares 10-Q · filed 2020-04-29 | 36.19M shares derived: average of 2 quarters · filed 2021-02-24 | 36.17M shares derived: average of 3 quarters · filed 2021-02-24 | 36.14M shares derived: average of 4 quarters · filed 2021-02-24 | ||||
| 2018-12-31 | 36.14M shares derived: 10-K 12 month − 10-Q 9 month · filed 2021-02-24 | 36.13M shares derived: average of 2 quarters · filed 2021-02-24 | 36.11M shares derived: average of 3 quarters · filed 2021-02-24 | 36.06M shares 10-K · filed 2021-02-24 | ||||
| 2018-09-30 | 36.13M shares 10-Q · filed 2019-10-23 | 36.10M shares derived: average of 2 quarters · filed 2019-10-23 | 36.03M shares 10-Q · filed 2019-10-23 | 35.94M shares derived: average of 4 quarters · filed 2020-02-26 | ||||
| 2018-06-30 | 36.07M shares 10-Q · filed 2019-07-24 | 35.98M shares 10-Q · filed 2019-07-24 | 35.88M shares derived: average of 3 quarters · filed 2020-02-26 | 35.02M shares derived: average of 4 quarters · filed 2020-02-26 | ||||
| 2018-03-31 | 35.89M shares 10-Q · filed 2019-04-24 | 35.78M shares derived: average of 2 quarters · filed 2020-02-26 | 34.67M shares derived: average of 3 quarters · filed 2020-02-26 | 34.10M shares derived: average of 4 quarters · filed 2020-02-26 | ||||
| 2017-12-31 | 35.67M shares derived: 10-K 12 month − 10-Q 9 month · filed 2020-02-26 | 34.06M shares derived: average of 2 quarters · filed 2020-02-26 | 33.51M shares derived: average of 3 quarters · filed 2020-02-26 | 33.20M shares 10-K · filed 2020-02-26 | ||||
| 2017-09-30 | 32.44M shares 10-Q · filed 2018-10-24 | 32.42M shares derived: average of 2 quarters · filed 2018-10-24 | 32.38M shares 10-Q · filed 2018-10-24 | 32.33M shares derived: average of 4 quarters · filed 2019-02-28 | ||||
| 2017-06-30 | 32.41M shares 10-Q · filed 2018-07-25 | 32.34M shares 10-Q · filed 2018-07-25 | 32.30M shares derived: average of 3 quarters · filed 2019-02-28 | 32.27M shares derived: average of 4 quarters · filed 2019-02-28 | ||||
| 2017-03-31 | 32.28M shares 10-Q · filed 2018-04-25 | 32.24M shares derived: average of 2 quarters · filed 2019-02-28 | 32.22M shares derived: average of 3 quarters · filed 2019-02-28 | 32.22M shares derived: average of 4 quarters · filed 2019-02-28 | ||||
| 2016-12-31 | 32.21M shares derived: 10-K 12 month − 10-Q 9 month · filed 2019-02-28 | 32.20M shares derived: average of 2 quarters · filed 2019-02-28 | 32.19M shares derived: average of 3 quarters · filed 2019-02-28 | 32.17M shares 10-K · filed 2019-02-28 | ||||
| 2016-09-30 | 32.19M shares 10-Q · filed 2017-10-26 | 32.19M shares derived: average of 2 quarters · filed 2017-10-26 | 32.15M shares 10-Q · filed 2017-10-26 | 32.33M shares derived: average of 4 quarters · filed 2019-02-28 | ||||
| 2016-06-30 | 32.19M shares 10-Q · filed 2017-07-27 | 32.13M shares 10-Q · filed 2017-07-27 | 32.38M shares derived: average of 3 quarters · filed 2019-02-28 | 32.28M shares derived: average of 4 quarters · filed 2019-02-28 | ||||
| 2016-03-31 | 32.09M shares 10-Q · filed 2017-04-27 | 32.48M shares derived: average of 2 quarters · filed 2019-02-28 | 32.31M shares derived: average of 3 quarters · filed 2019-02-28 | 32.23M shares derived: average of 4 quarters · filed 2019-02-28 | ||||
| 2015-12-31 | 32.87M shares derived: 10-K 12 month − 10-Q 9 month · filed 2019-02-28 | 32.42M shares derived: average of 2 quarters · filed 2019-02-28 | 32.28M shares derived: average of 3 quarters · filed 2019-02-28 | 32.17M shares 10-K · filed 2019-02-28 | 31.95M shares 10-K · filed 2016-02-26 | |||
| 2015-09-30 | 31.98M shares 10-Q · filed 2016-10-27 | 31.99M shares derived: average of 2 quarters · filed 2016-10-27 | 31.93M shares 10-Q · filed 2016-10-27 | 31.90M shares derived: average of 4 quarters · filed 2017-02-24 | ||||
| 2015-06-30 | 31.99M shares 10-Q · filed 2016-07-28 | 31.91M shares 10-Q · filed 2016-07-28 | 31.87M shares derived: average of 3 quarters · filed 2017-02-24 | 31.84M shares derived: average of 4 quarters · filed 2017-02-24 | ||||
| 2015-03-31 | 31.83M shares 10-Q · filed 2016-04-28 | 31.81M shares derived: average of 2 quarters · filed 2017-02-24 | 31.79M shares derived: average of 3 quarters · filed 2017-02-24 | 31.10M shares derived: average of 4 quarters · filed 2017-02-24 | ||||
| 2014-12-31 | 31.78M shares derived: 10-K 12 month − 10-Q 9 month · filed 2017-02-24 | 31.76M shares derived: average of 2 quarters · filed 2017-02-24 | 30.86M shares derived: average of 3 quarters · filed 2017-02-24 | 30.21M shares 10-K · filed 2017-02-24 | ||||
| 2014-09-30 | 31.74M shares 10-Q · filed 2015-10-29 | 30.40M shares derived: average of 2 quarters · filed 2015-10-29 | 29.69M shares 10-Q · filed 2015-10-29 | 29.23M shares derived: average of 4 quarters · filed 2016-02-26 | ||||
| 2014-06-30 | 29.06M shares 10-Q · filed 2015-07-30 | 28.67M shares 10-Q · filed 2015-07-30 | 28.40M shares derived: average of 3 quarters · filed 2016-02-26 | 28.24M shares derived: average of 4 quarters · filed 2016-02-26 | ||||
| 2014-03-31 | 28.27M shares 10-Q · filed 2015-04-30 | 28.07M shares derived: average of 2 quarters · filed 2016-02-26 | 27.96M shares derived: average of 3 quarters · filed 2016-02-26 | 27.88M shares derived: average of 4 quarters · filed 2016-02-26 | ||||
| 2013-12-31 | 27.86M shares derived: 10-K 12 month − 10-Q 9 month · filed 2016-02-26 | 27.81M shares derived: average of 2 quarters · filed 2016-02-26 | 27.75M shares derived: average of 3 quarters · filed 2016-02-26 | 27.67M shares 10-K · filed 2016-02-26 | ||||
| 2013-09-30 | 27.76M shares 10-Q · filed 2014-10-30 | 27.70M shares derived: average of 2 quarters · filed 2014-10-30 | 27.61M shares 10-Q · filed 2014-10-30 | 27.53M shares derived: average of 4 quarters · filed 2015-02-26 | ||||
| 2013-06-30 | 27.64M shares 10-Q · filed 2014-07-25 | 27.53M shares 10-Q · filed 2014-07-25 | 27.45M shares derived: average of 3 quarters · filed 2015-02-26 | 27.40M shares derived: average of 4 quarters · filed 2015-02-26 | ||||
| 2013-03-31 | 27.43M shares 10-Q · filed 2014-04-24 | 27.36M shares derived: average of 2 quarters · filed 2015-02-26 | 27.32M shares derived: average of 3 quarters · filed 2015-02-26 | 27.11M shares derived: average of 4 quarters · filed 2015-02-26 | ||||
| 2012-12-31 | 27.30M shares derived: 10-K 12 month − 10-Q 9 month · filed 2015-02-26 | 27.27M shares derived: average of 2 quarters · filed 2015-02-26 | 27.00M shares derived: average of 3 quarters · filed 2015-02-26 | 26.53M shares 10-K · filed 2015-02-26 | ||||
| 2012-09-30 | 27.24M shares 10-Q · filed 2013-10-24 | 26.85M shares derived: average of 2 quarters · filed 2013-10-24 | 26.28M shares 10-Q · filed 2013-10-24 | 25.96M shares derived: average of 4 quarters · filed 2014-02-20 | ||||
| 2012-06-30 | 26.46M shares 10-Q · filed 2013-07-24 | 25.80M shares 10-Q · filed 2013-07-24 | 25.53M shares derived: average of 3 quarters · filed 2014-02-20 | 25.39M shares derived: average of 4 quarters · filed 2014-02-20 | ||||
| 2012-03-31 | 25.13M shares 10-Q · filed 2013-04-25 | 25.07M shares derived: average of 2 quarters · filed 2014-02-20 | 25.04M shares derived: average of 3 quarters · filed 2014-02-20 | 24.28M shares derived: average of 4 quarters · filed 2014-02-20 | ||||
| 2011-12-31 | 25.01M shares derived: 10-K 12 month − 10-Q 9 month · filed 2014-02-20 | 24.99M shares derived: average of 2 quarters · filed 2014-02-20 | 24.00M shares derived: average of 3 quarters · filed 2014-02-20 | 23.13M shares 10-K · filed 2014-02-20 | ||||
| 2011-09-30 | 24.97M shares 10-Q · filed 2012-10-25 | 23.49M shares derived: average of 2 quarters · filed 2012-10-25 | 22.50M shares 10-Q · filed 2012-10-25 | 21.98M shares derived: average of 4 quarters · filed 2013-03-01 | ||||
| 2011-06-30 | 22.01M shares 10-Q · filed 2012-07-26 | 21.27M shares 10-Q · filed 2012-07-26 | 20.98M shares derived: average of 3 quarters · filed 2013-03-01 | 20.82M shares derived: average of 4 quarters · filed 2013-03-01 | ||||
| 2011-03-31 | 20.53M shares 10-Q · filed 2012-04-27 | 20.46M shares derived: average of 2 quarters · filed 2013-03-01 | 20.42M shares derived: average of 3 quarters · filed 2013-03-01 | 20.38M shares derived: average of 4 quarters · filed 2013-03-01 | ||||
| 2010-12-31 | 20.39M shares derived: 10-K 12 month − 10-Q 9 month · filed 2013-03-01 | 20.36M shares derived: average of 2 quarters · filed 2013-03-01 | 20.33M shares derived: average of 3 quarters · filed 2013-03-01 | 20.33M shares 10-K · filed 2013-03-01 | ||||
| 2010-09-30 | 20.33M shares 10-Q · filed 2011-10-27 | 20.30M shares derived: average of 2 quarters · filed 2011-10-27 | 20.31M shares 10-Q · filed 2011-10-27 | |||||
| 2010-06-30 | 20.28M shares 10-Q · filed 2011-07-28 | 20.27M shares 10-Q · filed 2011-07-28 | ||||||
| 2009-12-31 | 19.78M shares 10-K · filed 2012-02-23 |
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