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CSGP
CoStar Group Inc
stock NASDAQ

At Close

Sep 29, 2026 3:59:59 PM EDT

26.95USD-0.259%(-0.07)5,193,571

0.00Bid 0.00Ask 0.00Spread

Pre-market

Sep 29, 2026 9:29:30 AM EDT

26.73USD-1.073%(-0.29)1,517

After-hours

Sep 29, 2026 4:08:30 PM EDT

26.95USD0.000%(0.00)495

OverviewOption ChainHistoricalExchangesShortsMore

Expiration Dates

Oct 16, 2026 Nov 20, 2026 Dec 18, 2026 Jan 15, 2027 Mar 19, 2027 Apr 16, 2027 Jun 17, 2027 Sep 17, 2027 Jan 21, 2028 Jan 19, 2029

ITM/OTM for Jun 17, 2027View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
62	130	670	149

CSGP Jun 17, 2027 Exp. - Volume by Strike

Puts

Calls

CSGP Jun 17, 2027 Exp. - Open Interest by Strike

Puts

Calls

CSGP Jun 17, 2027 Exp. - Max Pain @ $30.00

Puts

Calls

CSGP Jun 17, 2027 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
50.00 C	1.40	-24.32%	2	10	09-08	CSGP270617C00050000
45.00 C	1.25	-30.17%	1	20	09-21	CSGP270617C00045000
40.00 C	1.50	-25.00%	5	27	09-28	CSGP270617C00040000
35.00 C	2.45	-52.24%	1	19	09-28	CSGP270617C00035000
30.00 C	4.90	-15.22%	20	54	09-22	CSGP270617C00030000
25.00 C	7.45	-28.37%	1	13	09-22	CSGP270617C00025000
22.50 C	12.05	+22.96%	6	17	08-18	CSGP270617C00022500
20.00 C	11.60	-23.93%	5	26	09-18	CSGP270617C00020000
17.50 C	14.55	0%	2	2	07-17	CSGP270617C00017500
15.00 C	15.90	-3.34%	2	4	09-09	CSGP270617C00015000

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
50.00 P	0	0%	0			CSGP270617P00050000
45.00 P	0	0%	0			CSGP270617P00045000
40.00 P	0	0%	0			CSGP270617P00040000
35.00 P	7.10	0.00%	2	65	08-27	CSGP270617P00035000
30.00 P	5.30	-7.83%	550	605	09-25	CSGP270617P00030000
25.00 P	2.60	-8.77%	1	58	09-18	CSGP270617P00025000
22.50 P	1.95	+8.33%	3	5	08-17	CSGP270617P00022500
20.00 P	1.35	+12.50%	4	52	09-10	CSGP270617P00020000
17.50 P	0.75	-55.88%	1	2	09-18	CSGP270617P00017500
15.00 P	0.96	+12.94%	15	32	07-31	CSGP270617P00015000

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