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CSGP
CoStar Group Inc
stock NASDAQ

At Close

Aug 5, 2026 3:59:53 PM EDT

30.22USD+1.359%(+0.41)6,566,708

28.45Bid 31.74Ask 3.29Spread

Pre-market

Aug 5, 2026 9:29:31 AM EDT

30.39USD+1.946%(+0.58)11,852

After-hours

Aug 5, 2026 4:52:30 PM EDT

30.30USD+0.281%(+0.08)200

OverviewOption ChainHistoricalExchangesShortsMore

Expiration Dates

Aug 21, 2026 Sep 18, 2026 Oct 16, 2026 Dec 18, 2026 Jan 15, 2027 Mar 19, 2027 Jun 17, 2027 Jan 21, 2028

ITM/OTM for Jan 15, 2027View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
507	10,774	631	2,848

CSGP Jan 15, 2027 Exp. - Volume by Strike

Puts

Calls

CSGP Jan 15, 2027 Exp. - Open Interest by Strike

Puts

Calls

CSGP Jan 15, 2027 Exp. - Max Pain @ $35.00

Puts

Calls

CSGP Jan 15, 2027 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
145.00 C	1.20	-36.84%	5	10	09-24	CSGP270115C00145000
140.00 C	0	0%	0			CSGP270115C00140000
135.00 C	2.32	0%	1	1	09-09	CSGP270115C00135000
130.00 C	0	0%	0			CSGP270115C00130000
125.00 C	5.40	0%	1	1	07-24	CSGP270115C00125000
120.00 C	3.20	-8.57%	2	21	07-07	CSGP270115C00120000
115.00 C	4.00	-14.89%	2	11	07-07	CSGP270115C00115000
110.00 C	4.90	-35.53%	3	6	10-03	CSGP270115C00110000
105.00 C	6.00	+1.18%	24	28	10-03	CSGP270115C00105000
100.00 C	0.35	-53.33%	10	21	05-01	CSGP270115C00100000
95.00 C	0.60	+71.43%	2	62	06-24	CSGP270115C00095000
90.00 C	0.25	-94.58%	3	67	05-06	CSGP270115C00090000
85.00 C	0.60	-46.43%	10	63	03-23	CSGP270115C00085000
80.00 C	0.10	0.00%	4	40	07-31	CSGP270115C00080000
75.00 C	0.25	+25.00%	42	3,686	07-30	CSGP270115C00075000
70.00 C	0.15	-50.00%	4	2,219	07-31	CSGP270115C00070000
65.00 C	0.20	-55.56%	4	104	07-30	CSGP270115C00065000
60.00 C	0.30	0.00%	11	434	07-31	CSGP270115C00060000
55.00 C	0.40	-33.33%	1	2,266	07-31	CSGP270115C00055000
50.00 C	0.75	0.00%	2	125	07-27	CSGP270115C00050000
45.00 C	1.05	-16.00%	3	195	08-03	CSGP270115C00045000
40.00 C	1.70	+41.67%	2	202	08-03	CSGP270115C00040000
35.00 C	2.70	-10.00%	2	1,212	08-04	CSGP270115C00035000
30.00 C	4.60	+12.20%	4	250	08-04	CSGP270115C00030000
25.00 C	7.75	-7.07%	1	3	07-17	CSGP270115C00025000
22.50 C	7.70	-39.61%	3	3	07-24	CSGP270115C00022500
20.00 C	10.90	+22.47%	1	58	07-29	CSGP270115C00020000
17.50 C	12.10	+12.04%	18	19	07-31	CSGP270115C00017500
15.00 C	15.30	+8.51%	67	174	08-03	CSGP270115C00015000

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
145.00 P	0	0%	0			CSGP270115P00145000
140.00 P	0	0%	0			CSGP270115P00140000
135.00 P	0	0%	0			CSGP270115P00135000
130.00 P	0	0%	0			CSGP270115P00130000
125.00 P	0	0%	0			CSGP270115P00125000
120.00 P	0	0%	0			CSGP270115P00120000
115.00 P	0	0%	0			CSGP270115P00115000
110.00 P	0	0%	0			CSGP270115P00110000
105.00 P	0	0%	0			CSGP270115P00105000
100.00 P	54.80	+48.51%	1	1	02-26	CSGP270115P00100000
95.00 P	49.85	+37.03%	1	1	02-26	CSGP270115P00095000
90.00 P	61.44	+1.94%	1	1	07-21	CSGP270115P00090000
85.00 P	55.25	+2.31%	3	3	07-01	CSGP270115P00085000
80.00 P	51.44	+2.33%	1	2	07-21	CSGP270115P00080000
75.00 P	37.65	+15.14%	1	64	04-09	CSGP270115P00075000
70.00 P	11.20	-5.88%	1	33	01-27	CSGP270115P00070000
65.00 P	25.34	+191.26%	2	11	04-02	CSGP270115P00065000
60.00 P	14.35	+10.90%	16	28	02-20	CSGP270115P00060000
55.00 P	26.65	+3.29%	1	174	07-30	CSGP270115P00055000
50.00 P	20.68	-3.81%	32	149	07-16	CSGP270115P00050000
45.00 P	17.03	+7.11%	1	49	07-27	CSGP270115P00045000
40.00 P	12.30	-0.40%	4	58	07-30	CSGP270115P00040000
35.00 P	7.30	-15.12%	1	57	07-28	CSGP270115P00035000
30.00 P	4.40	0.00%	2	2,187	08-04	CSGP270115P00030000
25.00 P	2.00	-22.18%	6	341	08-03	CSGP270115P00025000
22.50 P	1.30	-27.78%	13	253	08-03	CSGP270115P00022500
20.00 P	1.12	-27.74%	2	50	07-27	CSGP270115P00020000
17.50 P	0.68	0%	10	10	06-22	CSGP270115P00017500
15.00 P	0.35	-41.67%	4	7	07-31	CSGP270115P00015000

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