when did graham go public

Graham (GHC) went public on January 24, 1990, when it opened at a split-adjusted price of $100.81.

DATE OPEN HIGH LOW CLOSE VOLUME
October 2025
$1,166.45
$1,180.74
$928.02
$978.21
651,138
September 2025
$1,071.25
$1,197.76
$1,065.01
$1,175.12
860,300
August 2025
$950.35
$1,101.16
$915.77
$1,084.03
843,800
July 2025
$933.19
$968.39
$880.57
$952.40
905,800
June 2025
$940.34
$976.42
$929.39
$942.51
1,266,700
May 2025
$911.19
$1,011.07
$902.52
$950.71
478,200
April 2025
$959.37
$997.68
$870.49
$916.49
604,200
March 2025
$968.63
$975.78
$892.50
$955.26
476,800
February 2025
$903.86
$987.70
$897.73
$978.03
326,200
January 2025
$875.95
$931.33
$833.98
$921.61
313,600
December 2024
$926.41
$966.44
$847.51
$865.16
339,200
November 2024
$841.63
$964.59
$832.62
$923.90
292,200
October 2024
$797.31
$844.75
$764.09
$836.76
250,300
September 2024
$777.92
$813.67
$717.55
$813.63
312,700
August 2024
$743.90
$792.69
$684.60
$787.36
288,400
July 2024
$689.52
$814.08
$674.79
$767.22
367,900
June 2024
$750.47
$750.47
$679.75
$691.14
417,600
May 2024
$699.82
$769.48
$699.13
$743.39
375,500
April 2024
$759.93
$759.93
$686.12
$692.94
289,000
March 2024
$683.33
$756.61
$683.33
$756.61
316,100
February 2024
$711.98
$739.07
$677.09
$692.20
267,300
January 2024
$679.83
$736.28
$652.38
$710.01
314,500
December 2023
$626.76
$690.66
$618.00
$684.88
369,200
November 2023
$554.65
$625.38
$554.21
$616.67
284,600
October 2023
$572.22
$592.85
$553.97
$569.05
266,100