$34.88
-1.05-2.92%
At close: Sep 28, 5:00 PM EST
$34.88
-1.05-2.92%
Pre-Market: 4:09 AM EST
Castle Biosciences Inc Option Chain
CSTLNASDAQ
Castle Biosciences Options
View Castle Biosciences (CSTL) options chain, put/call ratios, volume and open interest data.
P/C Ratio (Vol)
—
P/C Ratio (OI)
0.23
Volume vs. Open Interest by Strike
Volume by Expiration
Last price
Change
Bid
Ask
Volume
Open Interest
Strike
Strike
Strike
Last price
Change
Bid
Ask
Volume
Open Interest
Last Price-
Change
-
Bid28.6
Ask31.9
volume0
Intrest0
Strike
5
5
Last Price-
Change
-
Bid-
Ask0.05
volume0
Intrest0
Last Price-
Change
-
Bid26.2
Ask28.8
volume0
Intrest0
Strike
7.5
7.5
Last Price-
Change
-
Bid-
Ask1.35
volume0
Intrest0
Last Price-
Change
-
Bid23.7
Ask27
volume0
Intrest0
Strike
10
10
Last Price-
Change
-
Bid-
Ask1.6
volume0
Intrest0
Last Price-
Change
-
Bid21.1
Ask24.4
volume0
Intrest0
Strike
12.5
12.5
Last Price-
Change
-
Bid-
Ask0.75
volume0
Intrest0
Last Price9.3Jul 20, 2026
Change
-
Bid18.5
Ask22
volume0
Intrest15
Strike
15
15
Last Price0.2Jul 02, 2026
Change
-
Bid-
Ask0.95
volume0
Intrest10
Last Price4.9Jun 16, 2026
Change
-
Bid16
Ask19.3
volume0
Intrest1
Strike
17.5
17.5
Last Price-
Change
-
Bid-
Ask1.15
volume0
Intrest0
Last Price3.67Jun 09, 2026
Change
-
Bid13.4
Ask16.9
volume0
Intrest5
Strike
20
20
Last Price0.11Sep 10, 2026
Change
-
Bid-
Ask0.95
volume0
Intrest24
Last Price14.2Sep 17, 2026
Change
-
Bid11
Ask14.2
volume0
Intrest6
Strike
22.5
22.5
Last Price-
Change
-
Bid-
Ask0.95
volume0
Intrest0
Last Price8.31Aug 11, 2026
Change
-
Bid8.3
Ask11.7
volume0
Intrest7
Strike
25
25
Last Price0.35Aug 20, 2026
Change
-
Bid-
Ask1.35
volume0
Intrest3
Last Price5.04Sep 23, 2026
Change
-
Bid4.4
Ask6.1
volume0
Intrest27
Strike
30
30
Last Price1.25Sep 10, 2026
Change
-
Bid-
Ask0.75
volume0
Intrest3
Last Price1.75Sep 28, 2026
Change
-
Bid1
Ask2.85
volume0
Intrest12
Strike
35
35
Last Price2Sep 29, 2026
Change
-
Bid1.3
Ask2
volume0
Intrest0
Last Price0.25Sep 29, 2026
Change
-
Bid-
Ask0.35
volume0
Intrest208
Strike
40
40
Last Price-
Change
-
Bid4
Ask6
volume0
Intrest0
Last Price0.9Mar 26, 2026
Change
-
Bid-
Ask0.75
volume0
Intrest1
Strike
45
45
Last Price-
Change
-
Bid8.5
Ask11.1
volume0
Intrest0
Last Price0.7Mar 26, 2026
Change
-
Bid-
Ask0.95
volume0
Intrest1
Strike
50
50
Last Price-
Change
-
Bid13.2
Ask16.8
volume0
Intrest0
