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 — 2015

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2015-12-31$20.67$20.672,272,000
2015-12-30$20.74$20.74724,000
2015-12-29$21.04$21.041,384,000
2015-12-28$20.96$20.96771,000
2015-12-24$20.77$20.77763,000
2015-12-23$20.26$20.262,262,000
2015-12-22$20.17$20.171,476,000
2015-12-21$20.44$20.442,415,000
2015-12-18$20.37$20.372,088,000
2015-12-17$20.58$20.582,441,000
2015-12-16$20.80$20.801,899,000
2015-12-15$20.28$20.281,639,000
2015-12-14$20.36$20.36970,000
2015-12-11$20.25$20.251,122,000
2015-12-10$20.76$20.761,712,000
2015-12-09$20.63$20.631,486,000
2015-12-08$20.66$20.66944,000
2015-12-07$20.68$20.681,738,000
2015-12-04$20.91$20.91804,000
2015-12-03$20.48$20.481,004,000
2015-12-02$20.82$20.82854,000
2015-12-01$20.94$20.941,984,000
2015-11-30$20.92$20.921,073,000
2015-11-27$21.00$21.00139,000
2015-11-25$20.89$20.891,099,000
2015-11-24$20.95$20.952,350,000
2015-11-23$20.53$20.531,940,000
2015-11-20$20.46$20.461,420,000
2015-11-19$20.50$20.501,959,000
2015-11-18$20.79$20.792,017,000
2015-11-17$20.25$20.25703,000
2015-11-16$20.16$20.16724,000
2015-11-13$19.98$19.981,073,000
2015-11-12$20.42$20.421,176,000
2015-11-11$20.47$20.471,591,000
2015-11-10$20.43$20.431,049,000
2015-11-09$20.36$20.361,128,000
2015-11-06$20.41$20.411,217,000
2015-11-05$20.45$20.451,276,000
2015-11-04$20.35$20.351,657,000
2015-11-03$20.12$20.122,269,000
2015-11-02$20.37$20.371,347,000
2015-10-30$20.31$20.312,083,000
2015-10-29$20.27$20.273,068,000
2015-10-28$19.23$19.232,876,000
2015-10-27$19.12$19.121,453,000
2015-10-26$19.06$19.062,527,000
2015-10-23$19.09$19.091,207,000
2015-10-22$18.67$18.67996,000
2015-10-21$18.25$18.251,493,000
2015-10-20$18.31$18.31914,000
2015-10-19$18.58$18.581,319,000
2015-10-16$18.48$18.48836,000
2015-10-15$18.55$18.551,008,000
2015-10-14$18.25$18.251,164,000
2015-10-13$18.45$18.451,511,000
2015-10-12$18.76$18.761,516,000
2015-10-09$18.77$18.771,182,000
2015-10-08$18.86$18.861,527,000
2015-10-07$18.57$18.571,695,000
2015-10-06$18.18$18.183,473,000
2015-10-05$17.97$17.971,605,000
2015-10-02$17.52$17.521,081,000
2015-10-01$17.01$17.011,748,000
2015-09-30$17.31$17.313,011,000
2015-09-29$16.45$16.452,857,000
2015-09-28$16.63$16.633,163,000
2015-09-25$17.12$17.122,138,000
2015-09-24$17.18$17.182,168,000
2015-09-23$17.49$17.492,019,000
2015-09-22$17.59$17.591,884,000
2015-09-21$17.86$17.861,894,000
2015-09-18$17.67$17.672,833,000
2015-09-17$18.10$18.101,280,000
2015-09-16$17.99$17.991,364,000
2015-09-15$17.96$17.96793,000
2015-09-14$17.71$17.711,133,000
2015-09-11$17.92$17.921,040,000
2015-09-10$17.80$17.801,283,000
2015-09-09$17.74$17.741,094,000
2015-09-08$17.94$17.941,472,000
2015-09-04$17.48$17.481,040,000
2015-09-03$17.82$17.821,544,000
2015-09-02$17.46$17.461,696,000
2015-09-01$17.14$17.142,050,000
2015-08-31$17.70$17.701,944,000
2015-08-28$18.14$18.141,247,000
2015-08-27$17.94$17.941,465,000
2015-08-26$17.52$17.522,154,000
2015-08-25$17.07$17.072,163,000
2015-08-24$17.00$17.003,535,000
2015-08-21$18.16$18.161,245,000
2015-08-20$18.81$18.811,361,000
2015-08-19$19.21$19.211,702,000
2015-08-18$19.37$19.37929,000
2015-08-17$19.62$19.62969,000
2015-08-14$19.56$19.561,053,000
2015-08-13$19.55$19.551,421,000
2015-08-12$19.65$19.651,076,000
2015-08-11$19.86$19.861,342,000
2015-08-10$20.03$20.031,175,000
2015-08-07$19.69$19.691,553,000
2015-08-06$19.46$19.461,513,000
2015-08-05$19.80$19.801,500,000
2015-08-04$19.59$19.591,682,000
2015-08-03$19.73$19.732,797,000
2015-07-31$20.13$20.132,745,000
2015-07-30$20.75$20.752,510,000
2015-07-29$21.29$21.291,208,000
2015-07-28$21.14$21.141,545,000
2015-07-27$20.95$20.951,384,000
2015-07-24$21.48$21.481,105,000
2015-07-23$21.40$21.40698,000
2015-07-22$21.38$21.381,540,000
2015-07-21$21.84$21.843,286,000
2015-07-20$21.71$21.711,361,000
2015-07-17$21.65$21.651,563,000
2015-07-16$21.52$21.521,356,000
2015-07-15$21.04$21.041,326,000
2015-07-14$20.61$20.612,100,000
2015-07-13$20.79$20.791,645,000
2015-07-10$20.81$20.811,467,000
2015-07-09$20.38$20.381,404,000
2015-07-08$20.04$20.041,852,000
2015-07-07$20.45$20.451,624,000
2015-07-06$20.28$20.281,509,000
2015-07-02$20.25$20.251,404,000
2015-07-01$20.13$20.131,367,000
2015-06-30$20.13$20.133,073,000
2015-06-29$20.15$20.151,654,000
2015-06-26$20.61$20.612,827,000
2015-06-25$20.63$20.631,540,000
2015-06-24$20.35$20.351,360,000
2015-06-23$20.58$20.581,260,000
2015-06-22$20.83$20.831,045,000
2015-06-19$20.70$20.70960,000
2015-06-18$20.84$20.841,502,000
2015-06-17$20.63$20.63817,000
2015-06-16$20.73$20.731,894,000
2015-06-15$20.49$20.491,891,000
2015-06-12$20.63$20.631,870,000
2015-06-11$20.42$20.421,495,000
2015-06-10$20.58$20.582,159,000
2015-06-09$20.13$20.131,909,000
2015-06-08$20.58$20.582,411,000
2015-06-05$21.01$21.012,413,000
2015-06-04$20.58$20.581,732,000
2015-06-03$20.77$20.771,435,000
2015-06-02$20.60$20.602,780,000
2015-06-01$20.66$20.661,379,000
2015-05-29$20.89$20.891,212,000
2015-05-28$21.20$21.20776,000
2015-05-27$21.05$21.052,534,000
2015-05-26$20.84$20.841,568,000
2015-05-22$20.96$20.961,081,000
2015-05-21$21.25$21.252,106,000
2015-05-20$21.03$21.032,403,000
2015-05-19$21.42$21.423,475,000
2015-05-18$21.31$21.311,351,000
2015-05-15$21.17$21.173,215,000
2015-05-14$20.97$20.97944,000
2015-05-13$20.52$20.521,213,000
2015-05-12$20.60$20.602,274,000
2015-05-11$20.33$20.331,086,000
2015-05-08$20.25$20.251,279,000
2015-05-07$19.85$19.851,563,000
2015-05-06$19.77$19.771,444,000
2015-05-05$19.93$19.931,880,000
2015-05-04$20.24$20.241,869,000
2015-05-01$20.45$20.451,834,000
2015-04-30$20.44$20.443,129,000
2015-04-29$20.00$20.002,333,000
2015-04-28$20.02$20.021,442,000
2015-04-27$20.01$20.011,599,000
2015-04-24$19.95$19.951,710,000
2015-04-23$20.07$20.07734,000
2015-04-22$19.89$19.89598,000
2015-04-21$19.94$19.94793,000
2015-04-20$19.70$19.701,662,000
2015-04-17$19.34$19.34885,000
2015-04-16$19.62$19.62791,000
2015-04-15$19.55$19.551,202,000
2015-04-14$19.76$19.76814,000
2015-04-13$19.96$19.962,641,000
2015-04-10$20.74$20.742,574,000
2015-04-09$20.03$20.031,942,000
2015-04-08$19.68$19.682,743,000
2015-04-07$19.71$19.711,933,000
2015-04-06$20.01$20.011,978,000
2015-04-02$19.83$19.831,070,000
2015-04-01$19.77$19.771,620,000
2015-03-31$19.78$19.782,086,000
2015-03-30$19.76$19.761,812,000
2015-03-27$19.21$19.211,366,000
2015-03-26$18.91$18.911,258,000
2015-03-25$18.81$18.812,097,000
2015-03-24$19.54$19.541,307,000
2015-03-23$20.06$20.064,530,000
2015-03-20$19.68$19.681,618,000
2015-03-19$19.77$19.771,834,000
2015-03-18$19.59$19.592,231,000
2015-03-17$19.49$19.49928,000
2015-03-16$19.55$19.551,176,000
2015-03-13$19.19$19.191,637,000
2015-03-12$19.27$19.271,205,000
2015-03-11$19.10$19.101,787,000
2015-03-10$19.09$19.091,538,000
2015-03-09$19.25$19.252,172,000
2015-03-06$19.21$19.211,664,000
2015-03-05$19.37$19.371,888,000
2015-03-04$19.46$19.461,633,000
2015-03-03$19.81$19.813,727,000
2015-03-02$19.89$19.892,936,000
2015-02-27$19.92$19.922,965,000
2015-02-26$19.58$19.583,004,000
2015-02-25$19.18$19.181,984,000
2015-02-24$18.68$18.682,705,000
2015-02-23$18.92$18.921,307,000
2015-02-20$19.12$19.121,781,000
2015-02-19$18.82$18.822,587,000
2015-02-18$18.52$18.522,564,000
2015-02-17$18.79$18.7912,233,000
2015-02-13$20.05$20.051,302,000
2015-02-12$20.00$20.00906,000
2015-02-11$19.58$19.58932,000
2015-02-10$19.30$19.30686,000
2015-02-09$19.09$19.091,359,000
2015-02-06$19.20$19.201,897,000
2015-02-05$19.51$19.511,060,000
2015-02-04$19.07$19.071,031,000
2015-02-03$19.13$19.131,332,000
2015-02-02$18.67$18.671,491,000
2015-01-30$18.45$18.451,530,000
2015-01-29$18.58$18.581,344,000
2015-01-28$18.44$18.442,041,000
2015-01-27$18.60$18.601,538,000
2015-01-26$18.73$18.733,080,000
2015-01-23$18.81$18.811,817,000
2015-01-22$18.22$18.221,851,000
2015-01-21$17.71$17.711,910,000
2015-01-20$17.59$17.591,366,000
2015-01-16$17.49$17.491,192,000
2015-01-15$17.00$17.001,246,000
2015-01-14$17.44$17.441,351,000
2015-01-13$17.52$17.521,308,000
2015-01-12$17.69$17.691,541,000
2015-01-09$17.72$17.72949,000
2015-01-08$18.00$18.001,703,000
2015-01-07$17.68$17.681,500,000
2015-01-06$17.58$17.583,218,000
2015-01-05$17.66$17.662,261,000
2015-01-02$18.01$18.011,784,000