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BlackRock, Inc. (blk)

2025-10-08 16:00:00 ET (Delayed)
Bid: 
1157.1
Ask: 
1190.74
Vol: 
393,549
Last: 
1,165
Change: 
+2.37 (+0.2034%)
Filters By:
Volume:
All
Expiration Type:
All
Options Range:
Near the Money
Size:
3
Expiration:
2025 October
 
Options Chain
Total Records: 27
Calls
(EXPR: Fri Oct 10 2025)
Strike
Last
Net
Bid
Ask
Vol
IV
Delta
Gamma
Int
BLK 1152.500
23.4
+0
13.9
20.5
0
0.28
0.721
0.0153
1
BLK 1155.000
21.7
+0
13
18.5
0
0.29
0.6838
0.0164
16
BLK 1160.000
11.75
-3.9
9.6
14.6
10
0.23
0.5997
0.0183
35
BLK 1165.000
16.2
+3.65
6.6
10
7
0.24
0.5066
0.0191
13
BLK 1170.000
7.67
-2.18
5.2
7.4
13
0.25
0.4119
0.0187
34
BLK 1175.000
5.51
-2.19
4
5.3
13
0.25
0.3238
0.0171
31
BLK 1180.000
3.2
-2.6
1.65
3.5
17
0.23
0.2482
0.0148
27
Fri Oct 10 2025
Strike
BLK 1152.500
BLK 1155.000
BLK 1160.000
BLK 1165.000
BLK 1170.000
BLK 1175.000
BLK 1180.000
Puts
(EXPR: Fri Oct 10 2025)
Strike
Last
Net
Bid
Ask
Vol
IV
Delta
Gamma
Int
BLK 1152.500
3.5
-1.9
3.2
4.4
16
0.25
-0.2815
0.0155
22
BLK 1155.000
3.35
-2.7
3.9
5.2
11
0.25
-0.3194
0.0167
70
BLK 1160.000
6.41
-1.39
5.2
7.6
16
0.25
-0.4051
0.0186
32
BLK 1165.000
8.73
-1.12
7
9.8
26
0.24
-0.5004
0.0196
29
BLK 1170.000
8.9
-3.4
7
14.2
1
0.23
-0.5973
0.0192
8
BLK 1175.000
8.6
-6.4
12.7
16.6
5
0.25
-0.6873
0.0175
6
BLK 1180.000
30.36
+0
15.8
20.3
0
0.24
-0.7642
0.0151
2
Calls
(EXPR: Fri Oct 17 2025)
Strike
Last
Net
Bid
Ask
Vol
IV
Delta
Gamma
Int
BLK 1152.500
39.3
+0
30.6
34.5
0
0.34
0.6014
0.0063
1
BLK 1155.000
30.5
-2.2
27.5
33.5
13
0.33
0.5857
0.0064
17
BLK 1160.000
28.11
-2.44
26.3
28.6
5
0.33
0.5536
0.0065
91
BLK 1165.000
24.8
-2.2
23.7
25.8
11
0.33
0.5207
0.0066
16
BLK 1170.000
22.5
-1.95
21.4
23.4
19
0.33
0.4876
0.0067
32
BLK 1175.000
20
-2.05
19.2
20.7
25
0.33
0.4542
0.0067
36
BLK 1180.000
23.3
+3.65
16.9
18.8
12
0.33
0.4212
0.0066
201
Fri Oct 17 2025
Strike
BLK 1152.500
BLK 1155.000
BLK 1160.000
BLK 1165.000
BLK 1170.000
BLK 1175.000
BLK 1180.000
Puts
(EXPR: Fri Oct 17 2025)
Strike
Last
Net
Bid
Ask
Vol
IV
Delta
Gamma
Int
BLK 1152.500
19.3
+0
17.2
19.3
0
0.34
-0.4033
0.0064
1
BLK 1155.000
15.53
-4.12
18.4
20.5
3
0.34
-0.4193
0.0065
14
BLK 1160.000
19.7
-2.3
20.8
22.9
1
0.34
-0.4518
0.0066
17
BLK 1165.000
23
-0.5
23.1
24.9
13
0.34
-0.4851
0.0067
15
BLK 1170.000
22
-4.3
25.6
29.2
1
0.35
-0.5188
0.0068
16
BLK 1175.000
23.85
-4.9
26.7
32.7
1
0.34
-0.5525
0.0068
9
BLK 1180.000
26.2
-5.2
29
35.8
1
0.34
-0.5861
0.0067
19
Calls
(EXPR: Fri Oct 24 2025)
Strike
Last
Net
Bid
Ask
Vol
IV
Delta
Gamma
Int
BLK 1155.000
0
+0
32.8
39
0
0.3
0.5815
0.0055
0
BLK 1160.000
38.5
+3.65
30.8
35
16
0.3
0.5541
0.0056
22
BLK 1162.500
0
+0
0
0
0
0
0
0
0
BLK 1165.000
29.5
-1.75
28
30.7
5
0.29
0.5262
0.0056
6
BLK 1167.500
0
+0
0
0
0
0
0
0
0
BLK 1170.000
33
+4.2
25.4
28.7
5
0.29
0.498
0.0057
11
BLK 1172.500
0
+0
0
0
0
0
0
0
0
Fri Oct 24 2025
Strike
BLK 1155.000
BLK 1160.000
BLK 1162.500
BLK 1165.000
BLK 1167.500
BLK 1170.000
BLK 1172.500
Puts
(EXPR: Fri Oct 24 2025)
Strike
Last
Net
Bid
Ask
Vol
IV
Delta
Gamma
Int
BLK 1155.000
21.19
+0
21.4
24.4
0
0.29
-0.4238
0.0056
1
BLK 1160.000
27.22
+2.32
23.5
26.6
5
0.29
-0.4517
0.0057
20
BLK 1162.500
0
+0
0
0
0
0
0
0
0
BLK 1165.000
0
+0
26.3
29.3
0
0.3
-0.4801
0.0057
0
BLK 1167.500
0
+0
0
0
0
0
0
0
0
BLK 1170.000
27.4
+0
28.7
30.5
0
0.29
-0.5089
0.0058
1
BLK 1172.500
0
+0
0
0
0
0
0
0
0
Calls
(EXPR: Fri Oct 31 2025)
Strike
Last
Net
Bid
Ask
Vol
IV
Delta
Gamma
Int
BLK 1140.000
63.42
+0
47.2
51.1
0
0.29
0.6498
0.0045
1
BLK 1150.000
43
+0
41.2
45.9
0
0.29
0.6045
0.0047
21
BLK 1160.000
47.02
+0
35.4
38.8
0
0.28
0.5568
0.0049
2
BLK 1170.000
32.41
+0
29.7
35
0
0.28
0.5076
0.005
15
BLK 1180.000
30
+0
25.3
28.2
0
0.27
0.4576
0.005
13
BLK 1190.000
21
-2.6
21.1
23.3
2
0.27
0.408
0.0049
11
Fri Oct 31 2025
Strike
BLK 1140.000
BLK 1150.000
BLK 1160.000
BLK 1170.000
BLK 1180.000
BLK 1190.000
Puts
(EXPR: Fri Oct 31 2025)
Strike
Last
Net
Bid
Ask
Vol
IV
Delta
Gamma
Int
BLK 1140.000
22.94
+0
20
21.4
0
0.28
-0.3556
0.0045
3
BLK 1150.000
20.45
-3.7
23.2
25.3
1
0.28
-0.4017
0.0048
1
BLK 1160.000
32.45
+0
27.5
29.4
0
0.28
-0.4504
0.005
4
BLK 1170.000
0
+0
29.7
36.7
0
0.27
-0.5008
0.0051
0
BLK 1180.000
52.28
+0
36.2
39.6
0
0.27
-0.5519
0.0051
10
BLK 1190.000
58.68
+0
41.9
47
0
0.27
-0.603
0.0051
10
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