when did csgp go public

CoStar (CSGP) went public on June 29, 1998.

DATEOPENHIGHLOWCLOSEVOLUME
October 2025
$84.22
$85.24
$73.58
$77.89
50,700,963
September 2025
$88.87
$91.89
$82.79
$84.37
57,025,088
August 2025
$94.70
$97.43
$84.57
$89.49
56,718,724
July 2025
$80.40
$97.15
$79.94
$95.19
64,154,453
June 2025
$72.84
$83.48
$71.35
$80.40
58,784,087
May 2025
$74.74
$78.56
$71.94
$73.56
62,711,091
April 2025
$78.79
$83.68
$71.21
$74.17
83,897,767
March 2025
$76.01
$83.03
$74.08
$79.23
76,181,283
February 2025
$76.52
$79.45
$72.50
$76.25
70,105,555
January 2025
$72.17
$77.54
$68.41
$76.60
47,616,888
December 2024
$80.70
$81.23
$69.61
$71.59
52,175,174
November 2024
$72.71
$82.49
$70.77
$81.34
52,553,631
October 2024
$75.36
$79.78
$68.26
$72.79
75,972,032
September 2024
$76.82
$80.45
$73.59
$75.44
44,355,213
August 2024
$78.11
$78.59
$71.69
$77.30
41,784,148
July 2024
$73.93
$81.63
$70.86
$78.02
57,731,287
June 2024
$78.49
$79.83
$71.90
$74.14
61,309,394
May 2024
$90.20
$92.74
$77.37
$78.17
36,861,766
April 2024
$96.98
$96.98
$83.16
$91.53
46,307,672
March 2024
$87.03
$100.38
$84.93
$96.60
51,198,953
February 2024
$83.88
$87.49
$79.82
$87.03
49,993,853
January 2024
$86.87
$86.87
$80.17
$83.48
34,850,991
December 2023
$82.76
$89.11
$81.73
$87.39
39,918,237
November 2023
$73.38
$84.80
$72.30
$83.04
38,374,834
October 2023
$76.78
$82.83
$67.35
$73.41
50,138,903