Costar Group Inc (CSGP)

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Costar Group Inc Stock (CSGP) Option Chain

For the September 18, 2026 expiration date, the CSGP stock option chain has a total of 88 contracts, with 25 call options and 63 put options. This indicates a leaning towards calls, suggesting bullish sentiment.

Other Key Expiration Dates:

October 16, 2026 : 58 contracts.
December 18, 2026 : 179 contracts.
January 15, 2027 : 26 contracts.
March 19, 2027 : 6 contracts.
January 21, 2028 : 44 contracts.

Costar Group Inc (CSGP) Most Active Options & Calendar

CSGP Call Options Expiring September 18, 2026

Strike	Price	Change	% Change	Volume
30.00	2.00	0.25	+14.29%	15
35.00	0.80	0.10	+14.29%	7
25.00	4.43	-0.87	-16.42%	2
75.00	0.05	-1.10	-95.65%	1
20.00	9.70	0.00	-	-
40.00	0.30	0.00	-	-
45.00	0.35	0.00	-	-

CSGP Put Options Expiring September 18, 2026

Strike	Price	Change	% Change	Volume
30.00	4.00	0.90	+29.03%	54
22.50	0.78	-0.22	-22.00%	6
25.00	1.42	-0.34	-19.32%	2
20.00	0.40	-0.10	-20.00%	1
35.00	6.50	0.00	-	-
40.00	10.95	0.00	-	-
45.00	10.36	0.00	-	-

Costar Group Inc Stock (CSGP) Option Chain Analysis

Put Volume Total	63
Call Volume Total	25
Put/Call Ratio (PCR)	2.52

Put Strike With Highest Volume	$30.00
Call Strike With Highest Volume	$30.00

COMP

$11.07

2.69%

JLL

$325.45

1.90%

FSV

$137.46

4.82%

BEKE

$15.89

1.18%

CIGI

$97.49

3.83%