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 — 1999

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1999-12-31$3.59$3.591,493,000
1999-12-30$3.04$3.04755,000
1999-12-29$3.01$3.01294,000
1999-12-28$3.00$3.00187,000
1999-12-27$3.02$3.02104,000
1999-12-23$3.01$3.01268,000
1999-12-22$3.03$3.031,195,000
1999-12-21$2.89$2.89768,000
1999-12-20$2.86$2.86969,000
1999-12-17$2.81$2.812,411,000
1999-12-16$2.40$2.401,260,000
1999-12-15$2.28$2.281,000,000
1999-12-14$2.26$2.2684,000
1999-12-13$2.25$2.25289,000
1999-12-10$2.19$2.196,511,000
1999-12-09$2.19$2.191,606,000
1999-12-08$2.20$2.20350,000
1999-12-07$2.31$2.31365,000
1999-12-06$2.31$2.31968,000
1999-12-03$2.29$2.29241,000
1999-12-02$2.29$2.2968,000
1999-12-01$2.29$2.29966,000
1999-11-30$2.30$2.301,039,000
1999-11-29$2.28$2.2827,000
1999-11-26$2.30$2.30453,000
1999-11-24$2.34$2.342,104,000
1999-11-23$2.34$2.34952,000
1999-11-22$2.29$2.291,004,000
1999-11-19$2.28$2.281,272,000
1999-11-18$2.29$2.29573,000
1999-11-17$2.26$2.2610,000
1999-11-16$2.28$2.28256,000
1999-11-15$2.30$2.30440,000
1999-11-12$2.33$2.33322,000
1999-11-11$2.25$2.25358,000
1999-11-10$2.25$2.25182,000
1999-11-09$2.29$2.29114,000
1999-11-08$2.45$2.45604,000
1999-11-05$2.40$2.4084,000
1999-11-04$2.43$2.431,736,000
1999-11-03$2.36$2.3698,000
1999-11-02$2.33$2.3336,000
1999-11-01$2.34$2.34371,000
1999-10-29$2.46$2.46773,000
1999-10-28$2.41$2.41117,000
1999-10-27$2.37$2.3719,000
1999-10-26$2.39$2.39159,000
1999-10-25$2.46$2.46611,000
1999-10-22$2.45$2.45211,000
1999-10-21$2.50$2.50196,000
1999-10-20$2.38$2.38349,000
1999-10-19$1.85$1.852,805,000
1999-10-18$1.75$1.753,009,000
1999-10-15$1.80$1.80395,000
1999-10-14$1.79$1.795,266,000
1999-10-13$1.60$1.60906,000
1999-10-12$1.68$1.683,420,000
1999-10-11$1.90$1.9049,000
1999-10-08$1.96$1.96454,000
1999-10-07$1.98$1.98511,000
1999-10-06$2.00$2.001,982,000
1999-10-05$2.04$2.041,233,000
1999-10-04$2.06$2.06832,000
1999-10-01$2.26$2.26769,000
1999-09-30$2.39$2.39885,000
1999-09-29$2.25$2.251,763,000
1999-09-28$2.31$2.311,087,000
1999-09-27$2.46$2.46490,000
1999-09-24$2.45$2.45684,000
1999-09-23$2.57$2.57324,000
1999-09-22$2.65$2.65657,000
1999-09-21$2.70$2.70556,000
1999-09-20$2.76$2.76758,000
1999-09-17$2.81$2.81121,000
1999-09-16$2.85$2.85227,000
1999-09-15$3.15$3.151,498,000
1999-09-14$2.97$2.971,470,000
1999-09-13$2.90$2.90791,000
1999-09-10$3.06$3.06180,000
1999-09-09$3.08$3.08445,000
1999-09-08$3.05$3.052,343,000
1999-09-07$3.06$3.06242,000
1999-09-03$2.96$2.96791,000
1999-09-02$2.96$2.96246,000
1999-09-01$3.00$3.00885,000
1999-08-31$2.87$2.87299,000
1999-08-30$2.88$2.88346,000
1999-08-27$2.79$2.79597,000
1999-08-26$2.80$2.80507,000
1999-08-25$2.75$2.75568,000
1999-08-24$2.71$2.71290,000
1999-08-23$2.68$2.68151,000
1999-08-20$2.74$2.74344,000
1999-08-19$2.70$2.70704,000
1999-08-18$2.60$2.602,898,000
1999-08-17$2.49$2.49178,000
1999-08-16$2.43$2.43274,000
1999-08-13$2.58$2.584,503,000
1999-08-12$2.41$2.41455,000
1999-08-11$2.51$2.51770,000
1999-08-10$2.51$2.51490,000
1999-08-09$2.90$2.901,902,000
1999-08-06$2.95$2.9532,000
1999-08-05$2.97$2.972,597,000
1999-08-04$3.20$3.20319,000
1999-08-03$3.50$3.501,246,000
1999-08-02$3.73$3.7357,000
1999-07-30$3.83$3.83695,000
1999-07-29$3.98$3.9894,000
1999-07-28$4.02$4.0235,000
1999-07-27$4.09$4.09371,000
1999-07-26$4.05$4.05151,000
1999-07-23$4.06$4.06106,000
1999-07-22$4.19$4.19213,000
1999-07-21$4.30$4.30975,000
1999-07-20$4.30$4.3093,000
1999-07-19$4.44$4.4485,000
1999-07-16$4.43$4.43524,000
1999-07-15$4.55$4.55514,000
1999-07-14$4.52$4.52387,000
1999-07-13$4.68$4.68204,000
1999-07-12$4.80$4.80527,000
1999-07-09$4.60$4.60399,000
1999-07-08$4.55$4.55627,000
1999-07-07$4.64$4.64772,000
1999-07-06$4.48$4.47415,000
1999-07-02$4.43$4.43614,000
1999-07-01$4.30$4.30295,000
1999-06-30$4.35$4.351,062,000
1999-06-29$4.21$4.21704,000
1999-06-28$4.21$4.21375,000
1999-06-25$4.00$4.00129,000
1999-06-24$4.00$4.00174,000
1999-06-23$4.08$4.08603,000
1999-06-22$3.90$3.90126,000
1999-06-21$3.86$3.86483,000
1999-06-18$3.80$3.80111,000
1999-06-17$3.65$3.65100,000
1999-06-16$3.64$3.641,116,000
1999-06-15$3.65$3.6545,000
1999-06-14$3.70$3.70211,000
1999-06-11$3.71$3.71911,000
1999-06-10$3.77$3.77196,000
1999-06-09$3.66$3.6690,000
1999-06-08$3.59$3.59850,000
1999-06-07$3.53$3.53410,000
1999-06-04$3.53$3.5378,000
1999-06-03$3.59$3.59678,000
1999-06-02$3.62$3.621,500,000
1999-06-01$3.75$3.75183,000
1999-05-28$3.63$3.63189,000
1999-05-27$3.63$3.63213,000
1999-05-26$3.61$3.61220,000
1999-05-25$3.59$3.591,296,000
1999-05-24$3.76$3.76425,000
1999-05-21$3.77$3.77385,000
1999-05-20$3.75$3.75276,000
1999-05-19$3.68$3.68407,000
1999-05-18$3.63$3.63131,000
1999-05-17$3.69$3.69291,000
1999-05-14$3.81$3.81557,000
1999-05-13$3.81$3.81524,000
1999-05-12$3.75$3.753,179,000
1999-05-11$3.90$3.901,951,000
1999-05-10$3.71$3.711,655,000
1999-05-07$3.65$3.651,768,000
1999-05-06$3.63$3.634,717,000
1999-05-05$3.54$3.5426,503,000
1999-05-04$3.46$3.46858,000
1999-05-03$3.54$3.54301,000
1999-04-30$3.92$3.92104,000
1999-04-29$3.91$3.91750,000
1999-04-28$3.74$3.74243,000
1999-04-27$3.91$3.91330,000
1999-04-26$4.00$4.00696,000
1999-04-23$4.00$4.00233,000
1999-04-22$3.76$3.76143,000
1999-04-21$3.48$3.4881,000
1999-04-20$3.46$3.46237,000
1999-04-19$3.53$3.53222,000
1999-04-16$4.39$4.39843,000
1999-04-15$4.45$4.451,420,000
1999-04-14$4.30$4.30483,000
1999-04-13$3.68$3.68120,000
1999-04-12$3.66$3.66838,000
1999-04-09$3.64$3.64858,000
1999-04-08$3.73$3.731,036,000
1999-04-07$3.60$3.60782,000
1999-04-06$3.31$3.311,244,000
1999-04-05$3.13$3.13156,000
1999-04-01$3.00$3.00617,000
1999-03-31$2.93$2.932,633,000
1999-03-30$2.65$2.65180,000
1999-03-29$2.50$2.5033,000
1999-03-26$2.35$2.35176,000
1999-03-25$2.38$2.381,799,000
1999-03-24$2.18$2.181,614,000
1999-03-23$2.20$2.2014,000
1999-03-22$2.38$2.38164,000
1999-03-19$2.40$2.401,034,000
1999-03-18$2.31$2.31560,000
1999-03-17$2.19$2.19628,000
1999-03-16$2.23$2.23346,000
1999-03-15$2.01$2.01346,000
1999-03-12$2.00$2.0015,000
1999-03-11$2.00$2.00249,000
1999-03-10$2.00$2.00115,000
1999-03-09$2.00$2.007,000
1999-03-08$2.00$2.0031,000
1999-03-05$2.01$2.014,000
1999-03-04$2.01$2.0174,000
1999-03-03$2.05$2.052,000
1999-03-02$2.03$2.03873,000
1999-03-01$1.98$1.98471,000
1999-02-26$1.98$1.9851,000
1999-02-25$2.00$2.00649,000
1999-02-24$2.03$2.0366,000
1999-02-23$2.13$2.130
1999-02-22$2.13$2.13284,000
1999-02-19$2.04$2.0416,000
1999-02-18$1.95$1.95103,000
1999-02-17$2.00$2.0066,000
1999-02-16$2.03$2.0315,000
1999-02-12$2.06$2.06126,000
1999-02-11$2.21$2.21227,000
1999-02-10$2.20$2.2064,000
1999-02-09$2.30$2.30395,000
1999-02-08$2.25$2.25136,000
1999-02-05$2.26$2.261,245,000
1999-02-04$2.31$2.3116,000
1999-02-03$2.38$2.383,000
1999-02-02$2.20$2.2050,000
1999-02-01$2.35$2.350
1999-01-29$2.35$2.350
1999-01-28$2.35$2.355,000
1999-01-27$2.30$2.3025,000
1999-01-26$2.51$2.51373,000
1999-01-25$2.40$2.40477,000
1999-01-22$2.30$2.30200,000
1999-01-21$2.21$2.2182,000
1999-01-20$2.33$2.3394,000
1999-01-19$2.33$2.33132,000
1999-01-15$2.15$2.15237,000
1999-01-14$2.03$2.03202,000
1999-01-13$1.90$1.90351,000
1999-01-12$1.88$1.881,289,000
1999-01-11$1.95$1.951,158,000
1999-01-08$1.89$1.891,531,000
1999-01-07$2.04$2.04781,000
1999-01-06$1.45$1.45264,000
1999-01-05$1.36$1.36232,000
1999-01-04$1.26$1.2651,000