Today, CoStar (CSGP) had a market capitalization of $11.5B, based on 405.2M shares at a price of $28.26.
| DATE | CLOSE | VOLUME | OUTSTANDING | MARKET CAP |
|---|---|---|---|---|
September 23 2026 | $28.26 | 5,671,023 | 405,197,619 | $11,450,884,712.94 |
September 22 2026 | $28.77 | 5,262,311 | 405,197,619 | $11,657,535,498.63 |
September 21 2026 | $29.04 | 6,947,724 | 405,197,619 | $11,766,938,855.76 |
September 18 2026 | $29.09 | 17,117,000 | 405,197,619 | $11,787,198,736.71 |
September 17 2026 | $29.30 | 4,863,500 | 405,197,619 | $11,872,290,236.70 |
September 16 2026 | $30.36 | 4,667,400 | 405,197,619 | $12,301,799,712.84 |
September 15 2026 | $31.56 | 6,720,700 | 405,197,619 | $12,788,036,855.64 |
September 14 2026 | $31.52 | 5,796,700 | 405,197,619 | $12,771,828,950.88 |
September 11 2026 | $30.46 | 6,195,600 | 405,197,619 | $12,342,319,474.74 |
September 10 2026 | $29.49 | 7,239,100 | 405,197,619 | $11,949,277,784.31 |
September 09 2026 | $29.58 | 4,448,700 | 405,197,619 | $11,985,745,570.02 |
September 08 2026 | $30.34 | 6,128,500 | 405,197,619 | $12,293,695,760.46 |
September 04 2026 | $30.91 | 3,875,300 | 405,197,619 | $12,524,658,403.29 |
September 03 2026 | $31.68 | 4,540,700 | 405,197,619 | $12,836,660,569.92 |
September 02 2026 | $31.26 | 5,169,500 | 405,197,619 | $12,666,477,569.94 |
September 01 2026 | $31.98 | 6,137,600 | 405,197,619 | $12,958,219,855.62 |
August 31 2026 | $32.07 | 33,461,800 | 405,197,619 | $12,994,687,641.33 |
August 28 2026 | $32.22 | 4,336,700 | 405,197,619 | $13,055,467,284.18 |
August 27 2026 | $31.34 | 5,424,300 | 405,197,619 | $12,698,893,379.46 |
August 26 2026 | $32.14 | 4,799,300 | 405,197,619 | $13,023,051,474.66 |
August 25 2026 | $32.81 | 4,915,500 | 405,197,619 | $13,294,533,879.39 |
August 24 2026 | $32.84 | 5,035,000 | 405,197,619 | $13,306,689,807.96 |
August 21 2026 | $32.26 | 4,751,500 | 405,197,619 | $13,071,675,188.94 |
August 20 2026 | $32.26 | 6,621,600 | 405,197,619 | $13,071,675,188.94 |
August 19 2026 | $33.73 | 5,818,500 | 405,197,619 | $13,667,315,688.87 |