NASDAQ:CSGP | Historical Stock Price | COSTAR GROUP, INC.

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
1998-07-01 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$0.59$1.67$4.69$13.18$37.05$104.151998-07-012026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2018

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2018-12-31$33.73$33.732,104,000
2018-12-28$33.72$33.721,550,000
2018-12-27$33.81$33.812,042,000
2018-12-26$33.70$33.702,129,000
2018-12-24$32.05$32.051,104,000
2018-12-21$32.04$32.042,385,000
2018-12-20$32.81$32.812,429,000
2018-12-19$33.66$33.662,767,000
2018-12-18$33.68$33.683,330,000
2018-12-17$34.50$34.502,835,000
2018-12-14$35.75$35.752,083,000
2018-12-13$36.50$36.502,459,000
2018-12-12$37.13$37.131,622,000
2018-12-11$36.22$36.221,327,000
2018-12-10$36.31$36.311,722,000
2018-12-07$36.69$36.692,277,000
2018-12-06$37.54$37.542,961,000
2018-12-04$36.58$36.582,288,000
2018-12-03$38.09$38.091,921,000
2018-11-30$36.94$36.943,083,000
2018-11-29$37.04$37.041,853,000
2018-11-28$37.51$37.512,196,000
2018-11-27$35.97$35.972,587,000
2018-11-26$37.30$37.303,702,000
2018-11-23$35.68$35.68460,000
2018-11-21$35.90$35.902,587,000
2018-11-20$36.12$36.123,973,000
2018-11-19$35.01$35.013,187,000
2018-11-16$36.28$36.282,274,000
2018-11-15$35.61$35.611,704,000
2018-11-14$34.61$34.611,960,000
2018-11-13$35.57$35.572,509,000
2018-11-12$35.70$35.701,391,000
2018-11-09$36.50$36.502,544,000
2018-11-08$36.77$36.771,713,000
2018-11-07$36.79$36.792,522,000
2018-11-06$35.78$35.782,454,000
2018-11-05$36.01$36.012,277,000
2018-11-02$36.28$36.282,317,000
2018-11-01$36.38$36.382,963,000
2018-10-31$36.14$36.145,709,000
2018-10-30$34.78$34.787,248,000
2018-10-29$34.90$34.902,348,000
2018-10-26$35.53$35.533,243,000
2018-10-25$35.84$35.846,340,000
2018-10-24$35.93$35.937,416,000
2018-10-23$38.27$38.272,545,000
2018-10-22$38.53$38.531,888,000
2018-10-19$38.35$38.351,405,000
2018-10-18$38.85$38.852,460,000
2018-10-17$39.29$39.292,042,000
2018-10-16$39.73$39.732,095,000
2018-10-15$38.06$38.063,728,000
2018-10-12$38.83$38.833,948,000
2018-10-11$37.50$37.505,429,000
2018-10-10$37.32$37.324,430,000
2018-10-09$38.38$38.382,968,000
2018-10-08$38.51$38.514,305,000
2018-10-05$39.49$39.493,104,000
2018-10-04$40.01$40.012,143,000
2018-10-03$40.89$40.893,421,000
2018-10-02$40.50$40.503,868,000
2018-10-01$41.44$41.441,540,000
2018-09-28$42.08$42.081,594,000
2018-09-27$41.77$41.771,097,000
2018-09-26$41.97$41.972,304,000
2018-09-25$41.85$41.852,622,000
2018-09-24$41.75$41.752,169,000
2018-09-21$41.97$41.972,688,000
2018-09-20$42.01$42.011,785,000
2018-09-19$41.52$41.522,052,000
2018-09-18$42.50$42.501,823,000
2018-09-17$42.35$42.351,750,000
2018-09-14$43.50$43.502,311,000
2018-09-13$43.85$43.85739,000
2018-09-12$43.49$43.491,558,000
2018-09-11$44.38$44.382,481,000
2018-09-10$43.60$43.601,288,000
2018-09-07$43.41$43.411,195,000
2018-09-06$43.72$43.721,858,000
2018-09-05$44.25$44.251,772,000
2018-09-04$44.67$44.671,330,000
2018-08-31$44.22$44.221,699,000
2018-08-30$44.11$44.111,102,000
2018-08-29$44.21$44.21713,000
2018-08-28$43.84$43.84743,000
2018-08-27$43.88$43.88751,000
2018-08-24$43.45$43.45930,000
2018-08-23$43.45$43.451,688,000
2018-08-22$43.08$43.081,040,000
2018-08-21$42.99$42.991,800,000
2018-08-20$43.23$43.23932,000
2018-08-17$43.04$43.04684,000
2018-08-16$42.97$42.97769,000
2018-08-15$42.88$42.88943,000
2018-08-14$43.10$43.10894,000
2018-08-13$42.86$42.861,467,000
2018-08-10$42.86$42.861,318,000
2018-08-09$42.29$42.291,152,000
2018-08-08$42.16$42.161,557,000
2018-08-07$42.00$42.002,458,000
2018-08-06$42.22$42.221,371,000
2018-08-03$42.30$42.301,005,000
2018-08-02$42.65$42.651,226,000
2018-08-01$41.86$41.862,708,000
2018-07-31$41.58$41.582,581,000
2018-07-30$41.46$41.462,133,000
2018-07-27$42.18$42.182,172,000
2018-07-26$43.20$43.201,618,000
2018-07-25$43.77$43.774,942,000
2018-07-24$42.41$42.412,450,000
2018-07-23$43.08$43.081,655,000
2018-07-20$42.50$42.501,135,000
2018-07-19$42.33$42.331,604,000
2018-07-18$42.47$42.471,366,000
2018-07-17$42.63$42.631,519,000
2018-07-16$42.78$42.781,629,000
2018-07-13$42.45$42.45938,000
2018-07-12$42.62$42.621,188,000
2018-07-11$42.04$42.042,441,000
2018-07-10$41.95$41.952,075,000
2018-07-09$42.89$42.891,816,000
2018-07-06$42.24$42.241,609,000
2018-07-05$41.36$41.362,673,000
2018-07-03$40.85$40.851,859,000
2018-07-02$41.57$41.574,032,000
2018-06-29$41.26$41.262,782,000
2018-06-28$41.53$41.535,660,000
2018-06-27$41.17$41.174,525,000
2018-06-26$40.76$40.762,862,000
2018-06-25$39.95$39.953,509,000
2018-06-22$41.21$41.213,368,000
2018-06-21$41.51$41.512,582,000
2018-06-20$41.72$41.722,086,000
2018-06-19$41.46$41.462,738,000
2018-06-18$41.69$41.691,543,000
2018-06-15$41.40$41.402,606,000
2018-06-14$40.97$40.971,428,000
2018-06-13$40.63$40.632,406,000
2018-06-12$41.10$41.104,170,000
2018-06-11$40.53$40.532,366,000
2018-06-08$40.19$40.191,569,000
2018-06-07$39.93$39.933,270,000
2018-06-06$40.13$40.131,128,000
2018-06-05$39.64$39.642,013,000
2018-06-04$39.10$39.102,042,000
2018-06-01$38.54$38.542,295,000
2018-05-31$38.12$38.122,836,000
2018-05-30$38.09$38.091,369,000
2018-05-29$37.79$37.791,507,000
2018-05-25$38.08$38.081,280,000
2018-05-24$38.22$38.221,152,000
2018-05-23$38.08$38.08885,000
2018-05-22$37.75$37.751,806,000
2018-05-21$38.47$38.471,779,000
2018-05-18$38.15$38.152,036,000
2018-05-17$37.59$37.592,192,000
2018-05-16$38.11$38.112,049,000
2018-05-15$38.80$38.801,853,000
2018-05-14$39.12$39.121,057,000
2018-05-11$39.21$39.211,190,000
2018-05-10$39.35$39.351,345,000
2018-05-09$39.03$39.031,108,000
2018-05-08$38.65$38.651,656,000
2018-05-07$38.60$38.601,881,000
2018-05-04$37.79$37.791,754,000
2018-05-03$37.33$37.332,201,000
2018-05-02$36.83$36.831,451,000
2018-05-01$36.90$36.901,915,000
2018-04-30$36.67$36.672,589,000
2018-04-27$36.91$36.911,285,000
2018-04-26$37.06$37.062,608,000
2018-04-25$37.02$37.023,405,000
2018-04-24$38.50$38.504,564,000
2018-04-23$36.89$36.893,117,000
2018-04-20$37.69$37.691,897,000
2018-04-19$37.76$37.762,654,000
2018-04-18$37.77$37.772,875,000
2018-04-17$37.68$37.681,578,000
2018-04-16$36.75$36.752,103,000
2018-04-13$36.41$36.411,263,000
2018-04-12$36.77$36.771,482,000
2018-04-11$35.93$35.931,086,000
2018-04-10$36.02$36.02949,000
2018-04-09$35.69$35.691,245,000
2018-04-06$35.13$35.131,087,000
2018-04-05$35.53$35.532,203,000
2018-04-04$35.90$35.902,728,000
2018-04-03$35.33$35.331,935,000
2018-04-02$35.11$35.111,254,000
2018-03-29$36.27$36.271,867,000
2018-03-28$35.60$35.602,116,000
2018-03-27$36.00$36.002,203,000
2018-03-26$36.68$36.682,131,000
2018-03-23$36.14$36.142,988,000
2018-03-22$35.79$35.791,900,000
2018-03-21$37.37$37.371,815,000
2018-03-20$37.58$37.583,120,000
2018-03-19$36.60$36.603,350,000
2018-03-16$36.78$36.787,489,000
2018-03-15$36.36$36.361,933,000
2018-03-14$36.44$36.441,837,000
2018-03-13$36.31$36.312,153,000
2018-03-12$35.94$35.942,225,000
2018-03-09$36.12$36.121,923,000
2018-03-08$35.65$35.651,839,000
2018-03-07$35.61$35.611,575,000
2018-03-06$35.71$35.711,162,000
2018-03-05$35.71$35.712,098,000
2018-03-02$34.83$34.832,019,000
2018-03-01$34.45$34.452,302,000
2018-02-28$34.21$34.215,020,000
2018-02-27$34.40$34.402,258,000
2018-02-26$35.34$35.341,983,000
2018-02-23$35.49$35.491,647,000
2018-02-22$35.16$35.163,555,000
2018-02-21$35.21$35.211,975,000
2018-02-20$35.18$35.181,465,000
2018-02-16$35.01$35.011,539,000
2018-02-15$34.80$34.801,737,000
2018-02-14$34.56$34.562,163,000
2018-02-13$34.30$34.302,456,000
2018-02-12$33.41$33.411,527,000
2018-02-09$32.80$32.801,749,000
2018-02-08$32.91$32.911,869,000
2018-02-07$33.75$33.751,158,000
2018-02-06$33.52$33.523,265,000
2018-02-05$33.83$33.832,677,000
2018-02-02$34.34$34.341,840,000
2018-02-01$35.00$35.002,410,000
2018-01-31$34.61$34.612,430,000
2018-01-30$34.72$34.721,955,000
2018-01-29$35.07$35.073,171,000
2018-01-26$35.18$35.182,826,000
2018-01-25$34.95$34.953,333,000
2018-01-24$35.28$35.282,799,000
2018-01-23$35.02$35.022,177,000
2018-01-22$34.20$34.201,518,000
2018-01-19$34.12$34.122,797,000
2018-01-18$33.64$33.646,213,000
2018-01-17$32.20$32.202,017,000
2018-01-16$31.91$31.912,737,000
2018-01-12$32.20$32.202,394,000
2018-01-11$31.73$31.731,153,000
2018-01-10$31.44$31.44907,000
2018-01-09$31.47$31.471,373,000
2018-01-08$31.40$31.401,435,000
2018-01-05$31.14$31.141,422,000
2018-01-04$30.91$30.912,057,000
2018-01-03$30.75$30.752,802,000
2018-01-02$29.68$29.682,264,000