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CSGP
CoStar Group Inc
stock NASDAQ

Market Open

Sep 30, 2026 10:43:19 AM EDT

27.38USD+1.577%(+0.43)663,559

27.36Bid 27.37Ask 0.01Spread

Pre-market

Sep 30, 2026 9:21:30 AM EDT

27.14USD+0.705%(+0.19)1,000

After-hours

Sep 29, 2026 4:08:30 PM EDT

26.95USD0.000%(0.00)0

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 Apr 16, 2027View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
0	7	300	303

CSGP Apr 16, 2027 Exp. - Volume by Strike

Puts

Calls

CSGP Apr 16, 2027 Exp. - Open Interest by Strike

Puts

Calls

CSGP Apr 16, 2027 Exp. - Max Pain @ $35.00

Puts

Calls

CSGP Apr 16, 2027 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
45.00 C	1.75	0%	2	2	08-27	CSGP270416C00045000
40.00 C	2.15	0%	2	2	09-08	CSGP270416C00040000
35.00 C	2.90	-23.68%	1	3	09-18	CSGP270416C00035000
30.00 C	0	0%	0			CSGP270416C00030000
25.00 C	0	0%	0			CSGP270416C00025000
22.50 C	0	0%	0			CSGP270416C00022500
20.00 C	12.00	0%	41	0	09-04	CSGP270416C00020000
17.50 C	0	0%	0			CSGP270416C00017500
15.00 C	0	0%	0			CSGP270416C00015000

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
45.00 P	15.15	0%	2	2	09-16	CSGP270416P00045000
40.00 P	0	0%	0			CSGP270416P00040000
35.00 P	0	0%	0			CSGP270416P00035000
30.00 P	5.00	+31.23%	295	298	09-24	CSGP270416P00030000
25.00 P	2.50	+26.90%	295	302	09-24	CSGP270416P00025000
22.50 P	0	0%	0			CSGP270416P00022500
20.00 P	0.95	0%	1	1	08-21	CSGP270416P00020000
17.50 P	0	0%	0			CSGP270416P00017500
15.00 P	0	0%	0			CSGP270416P00015000

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