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 — 2003

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2003-12-31$4.17$4.17985,000
2003-12-30$4.20$4.201,075,000
2003-12-29$4.23$4.231,517,000
2003-12-26$4.03$4.03109,000
2003-12-24$4.05$4.05182,000
2003-12-23$4.01$4.011,835,000
2003-12-22$3.92$3.92663,000
2003-12-19$3.86$3.86830,000
2003-12-18$3.92$3.92871,000
2003-12-17$3.87$3.87895,000
2003-12-16$3.89$3.891,075,000
2003-12-15$3.90$3.901,407,000
2003-12-12$3.99$3.99894,000
2003-12-11$3.90$3.90681,000
2003-12-10$3.89$3.89877,000
2003-12-09$3.91$3.91847,000
2003-12-08$3.92$3.921,289,000
2003-12-05$4.00$4.00639,000
2003-12-04$4.02$4.021,971,000
2003-12-03$4.11$4.11646,000
2003-12-02$4.20$4.201,089,000
2003-12-01$4.21$4.21864,000
2003-11-28$4.20$4.20400,000
2003-11-26$4.22$4.22539,000
2003-11-25$4.22$4.22653,000
2003-11-24$4.20$4.202,193,000
2003-11-21$4.20$4.201,598,000
2003-11-20$4.17$4.17981,000
2003-11-19$4.16$4.161,374,000
2003-11-18$4.16$4.16785,000
2003-11-17$4.19$4.191,027,000
2003-11-14$4.29$4.29913,000
2003-11-13$4.24$4.241,095,000
2003-11-12$4.16$4.16736,000
2003-11-11$4.15$4.151,506,000
2003-11-10$4.15$4.151,394,000
2003-11-07$4.21$4.212,026,000
2003-11-06$4.03$4.032,006,000
2003-11-05$3.86$3.861,438,000
2003-11-04$3.85$3.851,891,000
2003-11-03$3.87$3.872,039,000
2003-10-31$3.76$3.763,235,000
2003-10-30$3.87$3.873,016,000
2003-10-29$3.89$3.8916,107,000
2003-10-28$3.47$3.471,749,000
2003-10-27$3.30$3.301,481,000
2003-10-24$3.21$3.211,945,000
2003-10-23$3.12$3.121,415,000
2003-10-22$3.10$3.102,214,000
2003-10-21$3.14$3.131,021,000
2003-10-20$3.15$3.15839,000
2003-10-17$3.18$3.181,225,000
2003-10-16$3.11$3.11688,000
2003-10-15$3.04$3.041,485,000
2003-10-14$2.97$2.97309,000
2003-10-13$2.99$2.99509,000
2003-10-10$2.92$2.921,391,000
2003-10-09$2.80$2.80303,000
2003-10-08$2.87$2.87681,000
2003-10-07$2.77$2.77790,000
2003-10-06$2.72$2.72335,000
2003-10-03$2.75$2.75771,000
2003-10-02$2.69$2.69785,000
2003-10-01$2.73$2.731,565,000
2003-09-30$2.62$2.621,101,000
2003-09-29$2.65$2.65760,000
2003-09-26$2.61$2.611,328,000
2003-09-25$2.63$2.631,171,000
2003-09-24$2.70$2.70496,000
2003-09-23$2.82$2.82347,000
2003-09-22$2.82$2.82241,000
2003-09-19$2.93$2.93369,000
2003-09-18$2.83$2.83614,000
2003-09-17$2.89$2.89347,000
2003-09-16$2.96$2.96335,000
2003-09-15$2.85$2.85276,000
2003-09-12$2.78$2.78502,000
2003-09-11$2.92$2.92305,000
2003-09-10$2.90$2.90440,000
2003-09-09$2.97$2.97353,000
2003-09-08$3.05$3.05401,000
2003-09-05$2.96$2.96259,000
2003-09-04$3.01$3.01256,000
2003-09-03$3.11$3.11192,000
2003-09-02$3.11$3.11375,000
2003-08-29$2.98$2.98493,000
2003-08-28$3.02$3.02673,000
2003-08-27$2.98$2.98241,000
2003-08-26$2.96$2.96329,000
2003-08-25$2.99$2.99342,000
2003-08-22$3.00$3.00524,000
2003-08-21$3.00$3.00487,000
2003-08-20$3.02$3.02267,000
2003-08-19$3.10$3.10280,000
2003-08-18$3.16$3.16480,000
2003-08-15$3.09$3.09102,000
2003-08-14$3.14$3.14634,000
2003-08-13$3.10$3.10564,000
2003-08-12$3.15$3.15545,000
2003-08-11$3.03$3.03436,000
2003-08-08$3.00$3.00668,000
2003-08-07$3.00$3.00987,000
2003-08-06$2.95$2.95598,000
2003-08-05$2.84$2.84557,000
2003-08-04$2.90$2.90369,000
2003-08-01$2.96$2.961,189,000
2003-07-31$3.03$3.03628,000
2003-07-30$2.94$2.94934,000
2003-07-29$3.18$3.18791,000
2003-07-28$3.13$3.13690,000
2003-07-25$3.01$3.01731,000
2003-07-24$3.01$3.01181,000
2003-07-23$3.01$3.01670,000
2003-07-22$2.89$2.89284,000
2003-07-21$2.83$2.83855,000
2003-07-18$2.98$2.98174,000
2003-07-17$2.94$2.94588,000
2003-07-16$3.03$3.03513,000
2003-07-15$3.09$3.09454,000
2003-07-14$3.10$3.10329,000
2003-07-11$3.07$3.07558,000
2003-07-10$3.07$3.07226,000
2003-07-09$3.19$3.19634,000
2003-07-08$3.14$3.14376,000
2003-07-07$3.14$3.14957,000
2003-07-03$3.02$3.02487,000
2003-07-02$2.97$2.971,307,000
2003-07-01$3.01$3.01662,000
2003-06-30$2.97$2.97486,000
2003-06-27$2.98$2.98634,000
2003-06-26$2.99$2.99517,000
2003-06-25$2.96$2.96709,000
2003-06-24$2.89$2.89418,000
2003-06-23$2.81$2.81737,000
2003-06-20$2.90$2.90342,000
2003-06-19$2.90$2.90662,000
2003-06-18$3.05$3.051,745,000
2003-06-17$2.90$2.901,937,000
2003-06-16$3.01$3.011,178,000
2003-06-13$2.96$2.96535,000
2003-06-12$3.02$3.021,288,000
2003-06-11$2.99$2.99918,000
2003-06-10$2.91$2.91301,000
2003-06-09$2.80$2.80625,000
2003-06-06$2.88$2.88884,000
2003-06-05$2.87$2.87327,000
2003-06-04$2.85$2.85840,000
2003-06-03$2.80$2.80977,000
2003-06-02$2.75$2.75474,000
2003-05-30$2.82$2.821,476,000
2003-05-29$2.90$2.901,601,000
2003-05-28$2.77$2.771,561,000
2003-05-27$2.52$2.521,449,000
2003-05-23$2.43$2.43112,000
2003-05-22$2.44$2.44182,000
2003-05-21$2.44$2.44436,000
2003-05-20$2.35$2.35450,000
2003-05-19$2.25$2.25291,000
2003-05-16$2.28$2.28273,000
2003-05-15$2.38$2.3887,000
2003-05-14$2.37$2.37131,000
2003-05-13$2.39$2.39427,000
2003-05-12$2.42$2.4297,000
2003-05-09$2.41$2.41281,000
2003-05-08$2.39$2.39186,000
2003-05-07$2.40$2.4091,000
2003-05-06$2.42$2.41761,000
2003-05-05$2.34$2.34310,000
2003-05-02$2.30$2.30290,000
2003-05-01$2.19$2.19470,000
2003-04-30$2.23$2.23752,000
2003-04-29$2.25$2.25359,000
2003-04-28$2.25$2.25787,000
2003-04-25$2.29$2.291,290,000
2003-04-24$2.45$2.45579,000
2003-04-23$2.44$2.44237,000
2003-04-22$2.39$2.39178,000
2003-04-21$2.34$2.34331,000
2003-04-17$2.31$2.31518,000
2003-04-16$2.34$2.34358,000
2003-04-15$2.33$2.33486,000
2003-04-14$2.28$2.28447,000
2003-04-11$2.13$2.131,080,000
2003-04-10$2.19$2.19239,000
2003-04-09$2.18$2.18369,000
2003-04-08$2.25$2.251,043,000
2003-04-07$2.41$2.411,158,000
2003-04-04$2.40$2.401,259,000
2003-04-03$2.32$2.32703,000
2003-04-02$2.29$2.29318,000
2003-04-01$2.20$2.20365,000
2003-03-31$2.21$2.21505,000
2003-03-28$2.27$2.27233,000
2003-03-27$2.25$2.25225,000
2003-03-26$2.26$2.26271,000
2003-03-25$2.26$2.26208,000
2003-03-24$2.25$2.25388,000
2003-03-21$2.26$2.26470,000
2003-03-20$2.23$2.23235,000
2003-03-19$2.16$2.16305,000
2003-03-18$2.13$2.131,138,000
2003-03-17$2.00$2.001,263,000
2003-03-14$2.10$2.10331,000
2003-03-13$2.10$2.10253,000
2003-03-12$2.04$2.0484,000
2003-03-11$2.03$2.03256,000
2003-03-10$2.06$2.06139,000
2003-03-07$2.06$2.06648,000
2003-03-06$2.04$2.04227,000
2003-03-05$2.04$2.04220,000
2003-03-04$2.04$2.04330,000
2003-03-03$2.06$2.06615,000
2003-02-28$2.06$2.06466,000
2003-02-27$2.07$2.07609,000
2003-02-26$2.02$2.02652,000
2003-02-25$2.01$2.01622,000
2003-02-24$2.00$2.00242,000
2003-02-21$2.01$2.01130,000
2003-02-20$2.01$2.01210,000
2003-02-19$2.00$2.0041,000
2003-02-18$2.01$2.0176,000
2003-02-14$1.94$1.94196,000
2003-02-13$1.85$1.85132,000
2003-02-12$1.88$1.88103,000
2003-02-11$1.84$1.84139,000
2003-02-10$1.86$1.86258,000
2003-02-07$1.83$1.83361,000
2003-02-06$1.90$1.90253,000
2003-02-05$1.89$1.89626,000
2003-02-04$2.01$2.01279,000
2003-02-03$2.01$2.01171,000
2003-01-31$2.02$2.02162,000
2003-01-30$2.06$2.06176,000
2003-01-29$2.09$2.09216,000
2003-01-28$2.03$2.03100,000
2003-01-27$1.98$1.98152,000
2003-01-24$1.95$1.95115,000
2003-01-23$2.03$2.03268,000
2003-01-22$2.00$2.00171,000
2003-01-21$2.01$2.01235,000
2003-01-17$2.02$2.02251,000
2003-01-16$2.03$2.03223,000
2003-01-15$2.03$2.03296,000
2003-01-14$2.02$2.02348,000
2003-01-13$2.00$2.001,068,000
2003-01-10$1.95$1.95482,000
2003-01-09$1.85$1.8585,000
2003-01-08$1.79$1.79276,000
2003-01-07$1.79$1.79174,000
2003-01-06$1.81$1.81134,000
2003-01-03$1.78$1.78334,000
2003-01-02$1.78$1.78417,000