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 — 2020

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2020-12-31$92.43$92.431,400,000——
2020-12-30$92.50$92.501,774,000——
2020-12-29$91.82$91.821,091,000——
2020-12-28$93.95$93.953,851,000——
2020-12-24$90.66$90.66431,000——
2020-12-23$90.78$90.78917,000——
2020-12-22$90.53$90.531,470,000——
2020-12-21$91.59$91.592,424,000——
2020-12-18$90.47$90.475,254,000——
2020-12-17$89.40$89.402,871,000——
2020-12-16$86.09$86.091,089,000——
2020-12-15$86.64$86.641,495,000——
2020-12-14$85.32$85.321,506,000——
2020-12-11$84.86$84.861,776,000——
2020-12-10$84.84$84.841,423,000——
2020-12-09$85.33$85.331,622,000——
2020-12-08$87.25$87.251,407,000——
2020-12-07$88.36$88.361,195,000——
2020-12-04$89.32$89.321,634,000——
2020-12-03$87.07$87.072,143,000——
2020-12-02$86.87$86.873,238,000——
2020-12-01$88.89$88.892,581,000——
2020-11-30$91.06$91.063,209,000——
2020-11-27$88.44$88.44521,000——
2020-11-25$88.01$88.011,084,000——
2020-11-24$86.99$86.99896,000——
2020-11-23$88.78$88.781,813,000——
2020-11-20$89.21$89.21892,000——
2020-11-19$89.47$89.471,131,000——
2020-11-18$88.55$88.551,534,000——
2020-11-17$91.41$91.411,331,000——
2020-11-16$91.56$91.56910,000——
2020-11-13$91.71$91.71954,000——
2020-11-12$90.14$90.141,265,000——
2020-11-11$89.87$89.871,416,000——
2020-11-10$88.61$88.611,760,000——
2020-11-09$91.19$91.191,905,000——
2020-11-06$90.26$90.261,427,000——
2020-11-05$90.36$90.361,421,000——
2020-11-04$90.25$90.251,683,000——
2020-11-03$87.99$87.991,831,000——
2020-11-02$85.09$85.092,588,000——
2020-10-30$82.36$82.362,578,000——
2020-10-29$82.83$82.832,787,000——
2020-10-28$79.33$79.332,388,000——
2020-10-27$82.89$82.891,843,000——
2020-10-26$83.07$83.072,070,000——
2020-10-23$81.98$81.981,794,000——
2020-10-22$82.21$82.211,575,000——
2020-10-21$82.55$82.551,257,000——
2020-10-20$83.56$83.561,308,000——
2020-10-19$83.60$83.601,793,000——
2020-10-16$86.06$86.06886,000——
2020-10-15$86.74$86.741,189,000——
2020-10-14$86.94$86.941,239,000——
2020-10-13$88.32$88.321,414,000——
2020-10-12$88.23$88.23805,000——
2020-10-09$87.44$87.441,274,000——
2020-10-08$86.89$86.891,545,000——
2020-10-07$87.57$87.571,243,000——
2020-10-06$86.39$86.391,458,000——
2020-10-05$86.60$86.601,536,000——
2020-10-02$85.51$85.512,498,000——
2020-10-01$86.54$86.542,194,000——
2020-09-30$84.85$84.851,802,000——
2020-09-29$85.68$85.681,112,000——
2020-09-28$85.71$85.711,213,000——
2020-09-25$84.00$84.001,654,000——
2020-09-24$81.92$81.921,880,000——
2020-09-23$82.13$82.131,663,000——
2020-09-22$83.75$83.751,401,000——
2020-09-21$82.40$82.401,912,000——
2020-09-18$82.75$82.753,261,000——
2020-09-17$83.08$83.082,310,000——
2020-09-16$83.97$83.972,472,000——
2020-09-15$84.30$84.303,724,000——
2020-09-14$81.47$81.472,749,000——
2020-09-11$78.57$78.571,524,000——
2020-09-10$79.28$79.281,991,000——
2020-09-09$80.35$80.351,799,000——
2020-09-08$79.21$79.212,116,000——
2020-09-04$82.69$82.691,648,000——
2020-09-03$84.56$84.562,696,000——
2020-09-02$87.78$87.782,135,000——
2020-09-01$87.34$87.341,981,000——
2020-08-31$84.86$84.863,288,000——
2020-08-28$85.25$85.251,325,000——
2020-08-27$84.63$84.631,990,000——
2020-08-26$84.17$84.171,103,000——
2020-08-25$85.42$85.421,691,000——
2020-08-24$85.30$85.302,132,000——
2020-08-21$83.33$83.331,736,000——
2020-08-20$83.59$83.591,241,000——
2020-08-19$82.72$82.721,064,000——
2020-08-18$82.83$82.83955,000——
2020-08-17$83.12$83.121,148,000——
2020-08-14$83.04$83.041,758,000——
2020-08-13$84.17$84.171,181,000——
2020-08-12$82.47$82.471,452,000——
2020-08-11$81.02$81.021,808,000——
2020-08-10$83.15$83.151,469,000——
2020-08-07$83.04$83.041,536,000——
2020-08-06$83.15$83.151,582,000——
2020-08-05$84.08$84.081,634,000——
2020-08-04$82.94$82.942,648,000——
2020-08-03$83.50$83.502,618,000——
2020-07-31$84.98$84.982,805,000——
2020-07-30$83.27$83.272,584,000——
2020-07-29$82.91$82.917,861,000——
2020-07-28$71.67$71.673,318,000——
2020-07-27$71.92$71.922,634,000——
2020-07-24$70.38$70.383,805,000——
2020-07-23$69.86$69.861,702,000——
2020-07-22$70.50$70.501,592,000——
2020-07-21$70.83$70.832,370,000——
2020-07-20$70.67$70.671,936,000——
2020-07-17$70.62$70.6215,359,000——
2020-07-16$69.56$69.563,940,000——
2020-07-15$69.17$69.172,725,000——
2020-07-14$68.00$68.004,561,000——
2020-07-13$68.41$68.414,059,000——
2020-07-10$72.20$72.201,665,000——
2020-07-09$72.63$72.631,965,000——
2020-07-08$73.00$73.002,391,000——
2020-07-07$72.33$72.331,961,000——
2020-07-06$72.62$72.622,475,000——
2020-07-02$71.81$71.811,668,000——
2020-07-01$71.86$71.861,786,000——
2020-06-30$71.07$71.072,080,000——
2020-06-29$69.16$69.161,753,000——
2020-06-26$69.11$69.113,711,000——
2020-06-25$70.62$70.622,067,000——
2020-06-24$69.14$69.143,565,000——
2020-06-23$72.46$72.462,597,000——
2020-06-22$72.19$72.191,467,000——
2020-06-19$71.07$71.074,661,000——
2020-06-18$70.12$70.121,605,000——
2020-06-17$68.94$68.944,180,000——
2020-06-16$67.78$67.781,945,000——
2020-06-15$66.32$66.321,684,000——
2020-06-12$66.81$66.812,501,000——
2020-06-11$65.71$65.712,508,000——
2020-06-10$69.66$69.662,848,000——
2020-06-09$69.17$69.173,165,000——
2020-06-08$68.51$68.512,713,000——
2020-06-05$66.70$66.703,069,000——
2020-06-04$65.27$65.273,527,000——
2020-06-03$65.98$65.981,866,000——
2020-06-02$66.00$66.002,390,000——
2020-06-01$65.69$65.692,094,000——
2020-05-29$65.68$65.682,791,000——
2020-05-28$64.71$64.712,971,000——
2020-05-27$65.73$65.733,011,000——
2020-05-26$66.40$66.404,569,000——
2020-05-22$65.91$65.916,097,000——
2020-05-21$64.36$64.3613,003,000——
2020-05-20$67.88$67.882,634,000——
2020-05-19$67.47$67.473,718,000——
2020-05-18$65.87$65.872,884,000——
2020-05-15$64.92$64.922,376,000——
2020-05-14$64.75$64.753,164,000——
2020-05-13$61.50$61.502,210,000——
2020-05-12$63.68$63.681,976,000——
2020-05-11$66.38$66.382,441,000——
2020-05-08$65.74$65.743,260,000——
2020-05-07$63.90$63.903,087,000——
2020-05-06$64.85$64.852,287,000——
2020-05-05$64.12$64.122,664,000——
2020-05-04$63.51$63.512,686,000——
2020-05-01$62.26$62.263,755,000——
2020-04-30$64.83$64.834,746,000——
2020-04-29$65.09$65.097,310,000——
2020-04-28$60.78$60.785,721,000——
2020-04-27$61.78$61.785,152,000——
2020-04-24$59.36$59.362,727,000——
2020-04-23$58.73$58.731,557,000——
2020-04-22$58.06$58.063,199,000——
2020-04-21$56.30$56.304,194,000——
2020-04-20$60.35$60.353,650,000——
2020-04-17$63.56$63.563,735,000——
2020-04-16$63.16$63.162,416,000——
2020-04-15$64.12$64.121,608,000——
2020-04-14$64.50$64.501,595,000——
2020-04-13$62.51$62.511,843,000——
2020-04-09$63.13$63.133,710,000——
2020-04-08$61.46$61.461,712,000——
2020-04-07$58.96$58.962,722,000——
2020-04-06$58.58$58.583,592,000——
2020-04-03$52.67$52.672,501,000——
2020-04-02$53.77$53.774,688,000——
2020-04-01$53.96$53.964,664,000——
2020-03-31$58.72$58.723,458,000——
2020-03-30$60.00$60.003,118,000——
2020-03-27$58.10$58.102,644,000——
2020-03-26$58.32$58.323,116,000——
2020-03-25$54.02$54.024,530,000——
2020-03-24$54.06$54.063,725,000——
2020-03-23$52.34$52.343,861,000——
2020-03-20$55.10$55.103,869,000——
2020-03-19$56.00$56.002,609,000——
2020-03-18$55.88$55.885,710,000——
2020-03-17$59.47$59.474,488,000——
2020-03-16$58.76$58.764,040,000——
2020-03-13$66.39$66.394,950,000——
2020-03-12$61.29$61.295,343,000——
2020-03-11$65.14$65.142,669,000——
2020-03-10$69.40$69.402,702,000——
2020-03-09$66.69$66.693,186,000——
2020-03-06$70.72$70.722,588,000——
2020-03-05$71.74$71.742,791,000——
2020-03-04$73.50$73.504,026,000——
2020-03-03$69.01$69.012,087,000——
2020-03-02$70.58$70.584,262,000——
2020-02-28$66.76$66.764,557,000——
2020-02-27$66.91$66.913,706,000——
2020-02-26$68.23$68.237,235,000——
2020-02-25$69.82$69.824,941,000——
2020-02-24$70.69$70.692,872,000——
2020-02-21$71.62$71.622,485,000——
2020-02-20$72.15$72.153,125,000——
2020-02-19$73.79$73.793,009,000——
2020-02-18$73.58$73.582,910,000——
2020-02-14$73.14$73.142,148,000——
2020-02-13$72.98$72.983,634,000——
2020-02-12$74.01$74.017,351,000——
2020-02-11$66.83$66.831,502,000——
2020-02-10$67.25$67.251,589,000——
2020-02-07$66.65$66.651,136,000——
2020-02-06$66.65$66.652,558,000——
2020-02-05$66.55$66.553,224,000——
2020-02-04$68.57$68.573,587,000——
2020-02-03$65.98$65.984,035,000——
2020-01-31$65.30$65.301,746,000——
2020-01-30$66.00$66.00939,000——
2020-01-29$65.76$65.761,138,000——
2020-01-28$65.99$65.991,861,000——
2020-01-27$65.25$65.252,241,000——
2020-01-24$65.07$65.071,687,000——
2020-01-23$64.64$64.643,579,000——
2020-01-22$66.96$66.962,679,000——
2020-01-21$66.04$66.042,761,000——
2020-01-17$64.96$64.962,505,000——
2020-01-16$65.20$65.201,948,000——
2020-01-15$64.90$64.901,965,000——
2020-01-14$63.99$63.991,474,000——
2020-01-13$64.27$64.271,993,000——
2020-01-10$64.51$64.512,513,000——
2020-01-09$62.97$62.972,090,000——
2020-01-08$62.54$62.542,305,000——
2020-01-07$62.00$62.002,330,000——
2020-01-06$62.45$62.451,880,000——
2020-01-03$62.62$62.622,096,000——
2020-01-02$62.07$62.073,162,000——