SuperworthCostar shares outstanding CSGP
Diluted shares outstanding, averaged over each quarter, from 2010.
- Latest quarter, to Jun 30, 2026
- 404.4M
- On a year earlier
- −4.7%
- fewer shares
Costar had 404.4M diluted shares outstanding on average in Q2 FY26, the quarter to Jun 30, 2026.
That is 4.7% fewer than a year earlier, so each share owns a little more of the company.
Shares outstanding over time
Fiscal year by fiscal year
| Fiscal year | Shares, fourth quarter | Change |
|---|---|---|
| FY2025 | 421M | +3% |
| FY2024 | 408.4M | +0% |
| FY2023 | 407.5M | +0% |
| FY2022 | 406M | +3% |
| FY2021 | 394.5M | +0% |
| FY2020 | 393.9M | +7% |
| FY2019 | 366.8M | +1% |
| FY2018 | 364.8M | +1% |
| FY2017 | 360.9M | +11% |
| FY2016 | 324.8M | +1% |
| FY2015 | 320M | −0% |
| FY2014 | 321.4M | +13% |
| FY2013 | 284.4M | +3% |
| FY2012 | 277.2M | +9% |
| FY2011 | 253.8M | +22% |
Each fiscal year is the twelve months to its fourth quarter, shown as the fourth quarter's average share count.
Quarter by quarter
| Quarter | Ended | Shares outstanding | On a year earlier |
|---|---|---|---|
| Q2 FY26 | 404.4M | −5% | |
| Q1 FY26 | 414M | +1% | |
| Q4 FY25 | 421M | +3% | |
| Q3 FY25 | 419.9M | +3% | |
| Q2 FY25 | 424.3M | +4% | |
| Q1 FY25 | 410.5M | +1% | |
| Q4 FY24 | 408.4M | +0% | |
| Q3 FY24 | 408M | +0% | |
| Q2 FY24 | 407.4M | +0% | |
| Q1 FY24 | 407.3M | +0% | |
| Q4 FY23 | 407.5M | +0% | |
| Q3 FY23 | 407.2M | +3% |
What the shares outstanding tells you
Diluted shares outstanding, averaged over the period. Fewer shares means each one owns more of the company.
A falling count usually means buybacks. A rising one means stock pay, acquisitions paid in shares or new shares sold.
More on Costar
Valuation data, not investment advice. Prices as of . Reported figures come from the company's filings with the SEC.