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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 Nov 20, 2026View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
3	340	79	409

CSGP Nov 20, 2026 Exp. - Volume by Strike

Puts

Calls

CSGP Nov 20, 2026 Exp. - Open Interest by Strike

Puts

Calls

CSGP Nov 20, 2026 Exp. - Max Pain @ $30.00

Puts

Calls

CSGP Nov 20, 2026 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
45.00 C	0.15	0%	5	5	09-21	CSGP261120C00045000
40.00 C	0.20	-50.00%	1	8	09-25	CSGP261120C00040000
35.00 C	0.40	-37.50%	3	233	09-28	CSGP261120C00035000
30.00 C	1.25	-16.67%	29	94	09-28	CSGP261120C00030000
25.00 C	3.49	-20.68%	1	3	09-28	CSGP261120C00025000
22.50 C	0	0%	0			CSGP261120C00022500
20.00 C	0	0%	0			CSGP261120C00020000
17.50 C	0	0%	0			CSGP261120C00017500

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
45.00 P	0	0%	0			CSGP261120P00045000
40.00 P	0	0%	0			CSGP261120P00040000
35.00 P	8.03	0%	3	3	09-28	CSGP261120P00035000
30.00 P	3.39	-10.79%	4	76	09-25	CSGP261120P00030000
25.00 P	1.40	+40.00%	243	361	09-28	CSGP261120P00025000
22.50 P	0.60	+33.33%	15	48	09-28	CSGP261120P00022500
20.00 P	0	0%	0			CSGP261120P00020000
17.50 P	0	0%	0			CSGP261120P00017500

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