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CSGP
CoStar Group Inc
stock NASDAQ

Market Open

Sep 30, 2026 10:31:15 AM EDT

27.20USD+0.928%(+0.25)596,410

27.18Bid 27.19Ask 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 Jan 15, 2027View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
266	12,091	2,731	968

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 @ $30.00

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	0.06	+20.00%	3	20	09-08	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%	3	43	08-05	CSGP270115C00080000
75.00 C	0.10	-60.00%	180	3,740	08-12	CSGP270115C00075000
70.00 C	0.07	-30.00%	10	2,251	09-28	CSGP270115C00070000
65.00 C	0.10	-50.00%	2	104	09-15	CSGP270115C00065000
60.00 C	0.10	-60.00%	1	436	09-17	CSGP270115C00060000
55.00 C	0.20	+25.00%	27	2,301	09-21	CSGP270115C00055000
50.00 C	0.25	-37.50%	1	129	09-17	CSGP270115C00050000
45.00 C	0.35	-22.22%	15	509	09-28	CSGP270115C00045000
40.00 C	0.45	-10.00%	1	430	09-29	CSGP270115C00040000
35.00 C	0.98	-6.67%	13	1,317	09-28	CSGP270115C00035000
30.00 C	1.90	-8.65%	22	541	09-29	CSGP270115C00030000
25.00 C	7.40	-26.00%	2	9	09-04	CSGP270115C00025000
22.50 C	6.00	-7.69%	2	9	09-28	CSGP270115C00022500
20.00 C	13.60	+9.59%	2	55	08-25	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	52.48	-5.01%	3	3	08-20	CSGP270115P00085000
80.00 P	47.48	-7.70%	2	2	08-20	CSGP270115P00080000
75.00 P	46.63	-1.58%	5	9	09-25	CSGP270115P00075000
70.00 P	42.38	+278.39%	5	8	09-24	CSGP270115P00070000
65.00 P	37.40	+1.22%	6	11	09-24	CSGP270115P00065000
60.00 P	33.00	+3.03%	4	0	09-28	CSGP270115P00060000
55.00 P	28.38	+6.57%	6	3	09-29	CSGP270115P00055000
50.00 P	23.05	+10.29%	35	38	09-28	CSGP270115P00050000
45.00 P	16.78	-0.12%	2	47	09-23	CSGP270115P00045000
40.00 P	13.13	+39.53%	164	221	09-28	CSGP270115P00040000
35.00 P	5.90	-11.94%	14	279	09-15	CSGP270115P00035000
30.00 P	4.90	+26.29%	9	2,107	09-29	CSGP270115P00030000
25.00 P	2.00	+4.17%	14	440	09-29	CSGP270115P00025000
22.50 P	1.15	+15.00%	2	280	09-29	CSGP270115P00022500
20.00 P	0.47	+17.50%	2	231	09-21	CSGP270115P00020000
17.50 P	0.68	0%	10	10	06-22	CSGP270115P00017500
15.00 P	0.10	-71.43%	3	7	08-21	CSGP270115P00015000

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