CSTL
CASTLE BIOSCI (CSTL)
NASDAQ
$35.58+$0.32 (+0.91%)
Price as of Oct 02, 2026 4:15 PM EDT
  • $1.1B
    Market Cap
  • 58.59%
    1-Year Change
  • Diagnostics & Research
    Industry
  • 1 Month
    +5.43%
    Low Price$32.31
    High Price$36.78
  • 3 Months
    +42.68%
    Low Price$22.98
    High Price$36.78
  • 1 Year
    +58.59%
    Low Price$18.15
    High Price$43.04
Date
Open
High
Low
Close
Change (%)
Volume
10/01/2026
36.10
36.99
35.17
35.26
-0.77%
522,290
09/30/2026
34.90
36.03
34.14
35.53
+1.86%
639,605
09/29/2026
35.72
36.24
34.24
34.88
-2.92%
318,619
09/28/2026
35.81
36.27
35.09
35.93
+0.34%
228,048
09/25/2026
35.19
36.12
34.44
35.81
+1.76%
437,681
09/24/2026
34.88
35.84
33.90
35.19
+0.89%
439,153
09/23/2026
34.74
34.97
33.99
34.88
+0.09%
348,306
09/22/2026
35.53
35.53
34.57
34.85
-0.40%
430,980
09/21/2026
35.68
35.68
34.48
34.99
-0.99%
391,676
09/18/2026
36.54
36.54
35.29
35.34
-3.92%
530,243
09/17/2026
35.98
36.85
34.94
36.78
+3.66%
364,646
09/16/2026
35.50
36.82
35.26
35.48
-0.06%
559,269
09/15/2026
33.64
35.69
33.64
35.50
+6.16%
519,948
09/14/2026
32.30
33.53
32.16
33.44
+3.43%
165,375
09/11/2026
32.77
32.94
31.71
32.33
+0.03%
224,204
09/10/2026
31.97
32.70
31.44
32.32
+0.03%
237,826
09/09/2026
32.43
33.03
32.00
32.31
-1.37%
194,560
09/08/2026
32.57
33.58
32.28
32.76
-0.46%
217,001
09/04/2026
32.32
33.21
31.99
32.91
+0.80%
187,715
09/03/2026
33.50
34.00
32.38
32.65
-2.30%
268,012
09/02/2026
33.36
34.73
32.69
33.42
-0.06%
199,816
09/01/2026
33.00
34.09
32.89
33.44
+1.24%
395,533
08/31/2026
33.03
33.30
32.36
33.03
-1.40%
258,045
08/28/2026
34.02
34.28
32.80
33.50
-2.22%
372,591
08/27/2026
34.01
34.89
33.98
34.26
+0.53%
251,211
08/26/2026
34.80
34.84
33.62
34.08
-2.63%
456,263
08/25/2026
33.47
35.20
33.29
35.00
+4.57%
483,371
08/24/2026
33.65
34.54
31.70
33.47
-2.13%
357,666
08/21/2026
32.85
34.70
32.14
34.20
+3.86%
573,470
08/20/2026
32.41
34.01
32.41
32.93
+1.89%
322,016
08/19/2026
29.03
32.39
29.03
32.32
+11.33%
451,913
08/18/2026
29.89
30.13
28.72
29.03
-3.07%
596,609
08/17/2026
29.50
30.50
29.21
29.95
+1.11%
225,807
08/14/2026
30.93
31.12
29.58
29.62
-3.04%
264,212
08/13/2026
31.62
31.97
30.51
30.55
-2.80%
362,229
08/12/2026
32.43
33.00
31.25
31.43
-2.51%
435,995
08/11/2026
32.34
32.99
31.46
32.24
-0.34%
313,473
08/10/2026
31.86
33.06
31.24
32.35
+1.00%
400,766
08/07/2026
30.88
32.37
30.65
32.03
+5.12%
241,822
08/06/2026
30.20
30.75
29.50
30.47
+0.23%
833,433
08/05/2026
31.18
31.42
30.10
30.40
-2.50%
520,196
08/04/2026
30.18
31.73
29.99
31.18
+2.60%
675,302
08/03/2026
27.83
30.73
27.83
30.39
+8.54%
777,609
07/31/2026
28.75
30.81
27.50
28.00
+4.52%
1,757,834
07/30/2026
24.50
27.13
24.50
26.79
+9.53%
716,330
07/30/2026
-$0.07 Earnings
07/29/2026
23.93
25.30
23.73
24.46
+2.39%
340,083
07/28/2026
24.63
24.77
23.76
23.89
-2.25%
366,214
07/27/2026
25.10
25.12
23.85
24.44
-0.99%
291,638
07/24/2026
25.56
25.63
24.35
24.69
-3.12%
408,990
07/23/2026
24.53
25.50
24.53
25.48
+2.70%
407,874
07/22/2026
24.33
24.92
23.77
24.81
+1.22%
437,921
07/21/2026
23.57
24.69
23.25
24.51
+2.57%
325,502
07/20/2026
23.97
24.15
23.76
23.90
-1.10%
315,668
07/17/2026
23.79
24.34
23.59
24.16
-0.29%
242,886
07/16/2026
24.06
25.13
23.82
24.23
+0.87%
375,696
07/15/2026
23.07
24.03
22.93
24.02
+3.89%
189,144
07/14/2026
23.30
23.30
22.61
23.12
+0.61%
250,213
07/13/2026
23.67
23.88
22.46
22.98
-3.12%
269,909
07/10/2026
24.55
24.67
23.36
23.72
-3.42%
207,334
07/09/2026
23.70
24.80
23.55
24.56
+3.89%
262,629
07/08/2026
23.45
23.92
23.34
23.64
-0.80%
413,163
07/07/2026
24.36
24.41
23.48
23.83
-1.57%
234,221
07/06/2026
23.95
24.55
23.60
24.21
+0.41%
209,118
07/02/2026
24.71
24.98
24.02
24.11
-2.43%
175,503
07/01/2026
23.92
24.86
23.86
24.71
+3.61%
318,282
06/30/2026
24.14
24.14
23.36
23.85
-1.93%
336,710
06/29/2026
24.35
24.80
24.21
24.32
+0.08%
324,265
06/26/2026
22.67
24.34
22.67
24.30
+6.07%
1,043,847
06/25/2026
22.33
22.93
22.24
22.91
+3.57%
305,331
06/24/2026
21.42
22.46
21.40
22.12
+3.46%
457,782
06/23/2026
21.07
21.93
21.05
21.38
+0.85%
439,262
06/22/2026
21.29
21.47
20.64
21.20
+0.38%
429,412
06/18/2026
20.39
21.15
20.23
21.12
+4.30%
726,610
06/17/2026
20.68
20.71
19.86
20.25
-1.03%
310,437
06/16/2026
20.67
21.12
20.37
20.46
-0.97%
380,221
06/15/2026
20.73
21.02
20.38
20.66
-0.19%
220,462
06/12/2026
21.06
21.20
20.51
20.70
-1.48%
154,634
06/11/2026
21.07
21.29
20.53
21.01
-0.33%
215,218
06/10/2026
20.88
21.52
20.88
21.08
0.00%
245,606
06/09/2026
20.30
21.09
20.24
21.08
+4.77%
289,481
06/08/2026
21.16
21.16
20.11
20.12
-4.24%
247,973
06/05/2026
21.57
21.78
20.99
21.01
-2.73%
212,464
06/04/2026
20.61
21.84
20.61
21.60
+5.93%
293,251
06/03/2026
19.66
20.74
19.58
20.39
+3.45%
516,575
06/02/2026
20.54
20.54
19.51
19.71
-6.01%
459,997
06/01/2026
20.98
21.21
20.45
20.97
-0.52%
312,139
05/29/2026
21.99
22.14
20.99
21.08
-4.66%
358,633
05/28/2026
21.12
22.18
21.10
22.11
+4.00%
299,800
05/27/2026
19.77
21.81
19.68
21.26
+7.97%
626,062
05/26/2026
20.12
20.12
19.55
19.69
-2.28%
401,928
05/22/2026
20.52
20.91
20.08
20.15
-1.90%
289,271
05/21/2026
19.78
20.65
19.73
20.54
+2.55%
327,277
05/20/2026
19.28
20.05
18.91
20.03
+4.32%
425,111
05/19/2026
19.42
19.71
18.82
19.20
-0.62%
343,466
05/18/2026
18.48
20.22
18.48
19.32
+0.99%
515,295
05/15/2026
18.69
19.61
18.64
19.13
+1.32%
554,909
05/14/2026
18.25
19.00
17.72
18.88
+4.02%
652,483
05/13/2026
18.51
18.82
17.81
18.15
-2.58%
664,496
05/12/2026
18.95
19.23
18.35
18.63
-2.15%
571,230