BLK · Option chain

BLK Option Chain

Every listed BLK strike within 25% of spot, across the next 6 expirations — calls and puts side by side with last price, volume and open interest, plus the closing bid and ask.

Open interest and pricing as of the close on 2026-09-03. Recomputed every morning before the open.

Spot
$1126.15
Call open interest
7,636
Put open interest
5,108
Put/call (volume)
1.17

680 contracts changed hands across these expirations — 314 calls against 366 puts. Puts outtraded calls 1.17 to one.

Sep 11, 20266 days

call OI 525 · put OI 259
CallsStrikePuts
LastVolOILastVolOI
9001
9502
96014
9701
9808
10001
1102019
110302
10402
110501.00112
106047
43.503110703.041113
310804.9653
31.401310906.6015
5110011.646020
24.001211105
22.001511152
13.3011117.5
14.10346112019.7034
15.002211251
8.5586911302
6.673111354
7.552311403
114531.7511
4.4066115078
115538.502
81157.5
31160
21162.5
2.152116551.892
1411702
4117564.0042
41180
811901
0.5422312002
91210
112151
0.501612201
61230
21240
0.1111245
71250
71260
1371270
101280
31290
0.04181300
11320
11350
1121380
A dash means the contract did not trade — not a price of zero.

Sep 18, 202613 days

call OI 4,538 · put OI 2,637
CallsStrikePuts
LastVolOILastVolOI
685033
86023
87056
288091
189037
1900110
19101.63129
392037
10930129
194051
18895035
596031
1497034
1198075
126.23205399026
271000270
26101025
3161020130
459103059
461040150
510504.30115
7610605.708183
13110705.60798
46.12612810808.935973
1109012.60258
310110017.502280
8111052
11155
218112021.821324
19.60111255
18.19320113026.552076
15.65150113529.75178
494114027
11451
8.72132115044.00146
11155
53116023
111165
21167.5
5.6736511704
211751
23411805
3.46711190
101195
2.402359312003
1.8021461205
1.4521215
1.201125812202
0.7021225
0.45121235
0.60231111240
0.3511245
3312602
0.3910016912803
731300
101320
41340
1113602
911380
151400
A dash means the contract did not trade — not a price of zero.

Sep 25, 202620 days

call OI 181 · put OI 170
CallsStrikePuts
LastVolOILastVolOI
93014
9406
9906
100010
101027
10209
10308
310408
210505
10605
53.561310707
3108013
410908
6110010
11102
211202
211401
211501
11602
7.70121111701
5.901721180
1119075.2867
4.0011412001
3.20221210
71220
312304
212406
312506
1912601
231270
141280
161290
81300
61310
111330
61340
61380
A dash means the contract did not trade — not a price of zero.

Oct 02, 202627 days

call OI 68 · put OI 118
CallsStrikePuts
LastVolOILastVolOI
9703
9809
9906
10003
10105
1102024
103021
10508.03112
1106011.17293
58.111210702
10808
10902
41.50211006
32.55111103
112033.002
11130
31140
111505
11160
611703
311801
11901
412003
11210
12205
11230
112402
51250
1112601
71270
11280
11290
71300
21320
21350
61380
A dash means the contract did not trade — not a price of zero.

Oct 09, 202634 days

call OI 137 · put OI 137
CallsStrikePuts
LastVolOILastVolOI
10005.1512
10101
10201
110306.85111
96.00111040
106013.9811
10807
109071
110039
11102
11201
11140
111501
11180
11.704119076.802
8.1021120085.202
11210
161220
71230
711240
3.40211250
341260
11310
A dash means the contract did not trade — not a price of zero.

Oct 16, 202641 days

call OI 2,187 · put OI 1,787
CallsStrikePuts
LastVolOILastVolOI
18609
2880176
190093
2920120
193023
1194073
1195023
296020
1097013
5980106
59906.602136
1210007.80156
910109.10221
7102010.60383
99.39115103012.40221
13104014.40753
385105015.50665
24106019.20141
9107022.30123
294108025.60198
108109029.40391
50.50291110033.30192
8111016
221120103
39.002711308
8114028
171150103
26.67126811606
25.0011411702
5611802
18119015
5212005
1912105
11.1022501220
931240
5.202436126057
1312801
391300
61320
1.501131340
231360
11380
61400
A dash means the contract did not trade — not a price of zero.

How to read this chain

Calls sit on the left, puts on the right, and every row is one strike. The highlighted row is the strike closest to spot. Open interest is the number of contracts still outstanding at that strike — positions that exist right now. Volume is how many traded on the session shown. Open interest builds slowly and marks where positioning has accumulated; volume spikes and marks where attention went today.

Strikes with no open interest and no trades on either side are omitted, and the ladder is trimmed to within 25% of spot — the far wings are almost entirely empty and say nothing about positioning.

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Educational, not investment advice. Options involve risk. Open interest is reported with a one-session lag by OCC, so these levels describe positioning as of the last settled session, not live intraday flow.