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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 Dec 18, 2026View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
142	3,651	194	6,144

CSGP Dec 18, 2026 Exp. - Volume by Strike

Puts

Calls

CSGP Dec 18, 2026 Exp. - Open Interest by Strike

Puts

Calls

CSGP Dec 18, 2026 Exp. - Max Pain @ $35.00

Puts

Calls

CSGP Dec 18, 2026 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
115.00 C	0.17	0%	1	1	05-05	CSGP261218C00115000
110.00 C	0.65	-58.06%	1	2	02-18	CSGP261218C00110000
105.00 C	1.50	0%	4	4	11-17	CSGP261218C00105000
100.00 C	0.60	0.00%	2	164	06-18	CSGP261218C00100000
95.00 C	3.10	0%	5	5	01-28	CSGP261218C00095000
90.00 C	0.06	-98.71%	2	5	07-27	CSGP261218C00090000
85.00 C	0.05	0.00%	2	3,048	08-04	CSGP261218C00085000
80.00 C	0.10	0%	18	18	07-28	CSGP261218C00080000
75.00 C	0.15	0.00%	3	17	07-28	CSGP261218C00075000
70.00 C	0.10	-79.17%	3	12	07-30	CSGP261218C00070000
65.00 C	0.25	+66.67%	1	11	07-28	CSGP261218C00065000
60.00 C	0.20	-20.00%	1	20	07-31	CSGP261218C00060000
55.00 C	0.42	+44.83%	1	25	08-03	CSGP261218C00055000
50.00 C	0.50	-56.52%	1	83	07-24	CSGP261218C00050000
45.00 C	0.86	-31.20%	1	25	08-03	CSGP261218C00045000
40.00 C	1.41	-4.73%	3	108	08-04	CSGP261218C00040000
35.00 C	2.48	+3.33%	1	103	08-04	CSGP261218C00035000
30.00 C	4.37	+9.25%	10	109	08-03	CSGP261218C00030000
25.00 C	6.90	+5.67%	25	27	08-04	CSGP261218C00025000
22.50 C	6.92	-43.00%	1	3	07-14	CSGP261218C00022500
20.00 C	8.68	-47.65%	1	3	07-14	CSGP261218C00020000
17.50 C	0	0%	0			CSGP261218C00017500
15.00 C	0	0%	0			CSGP261218C00015000

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
115.00 P	0	0%	0			CSGP261218P00115000
110.00 P	0	0%	0			CSGP261218P00110000
105.00 P	0	0%	0			CSGP261218P00105000
100.00 P	0	0%	0			CSGP261218P00100000
95.00 P	0	0%	0			CSGP261218P00095000
90.00 P	0	0%	0			CSGP261218P00090000
85.00 P	0	0%	0			CSGP261218P00085000
80.00 P	22.00	0%	6	6	01-13	CSGP261218P00080000
75.00 P	44.80	+41.06%	5	5	07-02	CSGP261218P00075000
70.00 P	0	0%	0			CSGP261218P00070000
65.00 P	32.60	+10.51%	1	15	05-14	CSGP261218P00065000
60.00 P	26.34	+270.99%	1	13	04-29	CSGP261218P00060000
55.00 P	25.50	+2.08%	2	13	06-22	CSGP261218P00055000
50.00 P	17.92	+108.37%	6	34	06-12	CSGP261218P00050000
45.00 P	6.62	+37.92%	4	33	02-25	CSGP261218P00045000
40.00 P	12.00	-0.33%	1	16	07-16	CSGP261218P00040000
35.00 P	6.90	-20.14%	9	59	08-03	CSGP261218P00035000
30.00 P	4.50	+10.29%	32	192	07-29	CSGP261218P00030000
25.00 P	1.80	+12.50%	2,634	5,608	08-04	CSGP261218P00025000
22.50 P	1.45	+6.62%	65	109	07-29	CSGP261218P00022500
20.00 P	0.80	-15.79%	1	42	08-03	CSGP261218P00020000
17.50 P	0.77	-4.94%	1	63	07-23	CSGP261218P00017500
15.00 P	0.35	+16.67%	1	130	07-24	CSGP261218P00015000

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