MMM Options Open Interest by Strike, Oct 21 Settlement
MMM open interest settled 2026-10-21 vs 2026-10-20.
Source: SquawkFlow's archive of settled open interest. Counts are contracts, not trades; they do not identify which side opened or closed a position.
Computed from the Oct 21 settlement. Next update after the Oct 22 settlement, after 5:30 a.m. PT (8:30 a.m. ET) on Friday, Oct 23, 2026.
All archived unexpired expiration/strike/type keys, including unchanged counts. Series sharing that key are combined; roots and deliverables are not retained. Zero-OI keys omitted by the archive are not reconstructed.
This page shows the 6 nearest of 14 expirations, with the 40 strikes nearest the archived reference price (2026-10-21) for each, plus the largest changes across the whole book. The complete book, 629 expiration/strike/type keys, is in the Markdown table.
Strike bucket on the horizontal axis, settled open contracts per bucket on the vertical axis. Calls in the accent color; puts in orange. Totals across the 6 nearest expirations, strikes from 140 to 209. Source: SquawkFlow's archive of settled open interest. Counts are contracts, not trades; they do not identify which side opened or closed a position.
MMM: largest changes in the full book, settled 2026-10-21 vs 2026-10-20
Strike
Expiry
Type
Prior OI
Settled OI
Change
167.5
10/23
put
97
1,631
+1,534
185
12/18
call
1,795
2,541
+746
165
10/23
put
1,712
1,004
-708
185
11/20
call
7,201
7,587
+386
170
10/30
put
85
322
+237
175
10/23
call
720
953
+233
172.5
10/23
call
454
615
+161
165
12/18
put
200
356
+156
150
11/20
put
1,073
1,212
+139
170
10/23
call
844
765
-79
177.5
10/30
call
89
167
+78
182.5
11/20
call
40
111
+71
160
10/23
put
941
1,011
+70
190
11/27
call
4
68
+64
165
10/23
call
543
484
-59
Expiration 2026-10-23
MMM open interest, settled 2026-10-21, expiration 2026-10-23, strikes 110 to 240
Strike
Expiry
Type
Prior OI
Settled OI
Change
110
10/23
call
16
15
-1
110
10/23
put
14
14
0
115
10/23
call
17
19
+2
115
10/23
put
13
13
0
120
10/23
call
1
7
+6
120
10/23
put
28
28
0
125
10/23
call
8
6
-2
125
10/23
put
46
47
+1
130
10/23
call
10
9
-1
130
10/23
put
107
108
+1
135
10/23
call
5
5
0
135
10/23
put
78
78
0
140
10/23
call
4
4
0
140
10/23
put
500
499
-1
141
10/23
call
0
2
+2
141
10/23
put
12
15
+3
142
10/23
call
3
3
0
142
10/23
put
61
62
+1
143
10/23
call
2
2
0
143
10/23
put
64
96
+32
144
10/23
call
1
5
+4
144
10/23
put
139
120
-19
145
10/23
call
7
7
0
145
10/23
put
272
292
+20
146
10/23
call
6
9
+3
146
10/23
put
94
94
0
147
10/23
call
4
4
0
147
10/23
put
75
66
-9
148
10/23
call
7
2
-5
148
10/23
put
79
79
0
149
10/23
call
1
0
-1
149
10/23
put
89
71
-18
150
10/23
call
7
14
+7
150
10/23
put
512
471
-41
152.5
10/23
call
6
4
-2
152.5
10/23
put
267
264
-3
155
10/23
call
10
9
-1
155
10/23
put
353
314
-39
157.5
10/23
call
6
6
0
157.5
10/23
put
238
222
-16
160
10/23
call
309
306
-3
160
10/23
put
941
1,011
+70
162.5
10/23
call
332
295
-37
162.5
10/23
put
745
727
-18
165
10/23
call
543
484
-59
165
10/23
put
1,712
1,004
-708
167.5
10/23
call
310
308
-2
167.5
10/23
put
97
1,631
+1,534
170
10/23
call
844
765
-79
170
10/23
put
348
319
-29
172.5
10/23
call
454
615
+161
172.5
10/23
put
55
92
+37
175
10/23
call
720
953
+233
175
10/23
put
26
72
+46
177.5
10/23
call
2,250
2,225
-25
180
10/23
call
567
611
+44
180
10/23
put
2
2
0
182.5
10/23
call
138
136
-2
182.5
10/23
put
1
1
0
185
10/23
call
257
256
-1
187.5
10/23
call
94
94
0
190
10/23
call
144
144
0
192.5
10/23
call
12
12
0
195
10/23
call
10
10
0
197.5
10/23
call
13
13
0
200
10/23
call
33
32
-1
205
10/23
call
14
14
0
235
10/23
call
0
1
+1
240
10/23
call
0
1
+1
Expiration 2026-10-30
MMM open interest, settled 2026-10-21, expiration 2026-10-30, strikes 105 to 205
Strike
Expiry
Type
Prior OI
Settled OI
Change
105
10/30
put
2
2
0
110
10/30
put
1
1
0
125
10/30
put
4
4
0
130
10/30
put
4
4
0
135
10/30
put
1
1
0
140
10/30
put
5
5
0
145
10/30
put
43
43
0
148
10/30
put
1
1
0
149
10/30
put
34
34
0
150
10/30
call
3
3
0
150
10/30
put
92
93
+1
152.5
10/30
call
3
3
0
152.5
10/30
put
31
31
0
155
10/30
call
1
1
0
155
10/30
put
307
307
0
157.5
10/30
call
1
2
+1
157.5
10/30
put
64
64
0
160
10/30
call
68
68
0
160
10/30
put
892
917
+25
162.5
10/30
call
121
116
-5
162.5
10/30
put
115
122
+7
165
10/30
call
300
296
-4
165
10/30
put
236
237
+1
167.5
10/30
call
143
134
-9
167.5
10/30
put
44
71
+27
170
10/30
call
234
239
+5
170
10/30
put
85
322
+237
172.5
10/30
call
127
158
+31
172.5
10/30
put
46
74
+28
175
10/30
call
514
573
+59
175
10/30
put
6
10
+4
177.5
10/30
call
89
167
+78
177.5
10/30
put
1
1
0
180
10/30
call
110
100
-10
180
10/30
put
4
3
-1
182.5
10/30
call
5
7
+2
185
10/30
call
192
196
+4
187.5
10/30
call
2
2
0
187.5
10/30
put
1
1
0
190
10/30
call
20
24
+4
190
10/30
put
5
6
+1
195
10/30
call
5
5
0
195
10/30
put
1
1
0
205
10/30
call
10
10
0
Expiration 2026-11-06
MMM open interest, settled 2026-10-21, expiration 2026-11-06, strikes 95 to 190
Strike
Expiry
Type
Prior OI
Settled OI
Change
95
11/06
put
2
2
0
140
11/06
put
4
4
0
145
11/06
put
8
11
+3
150
11/06
call
3
2
-1
150
11/06
put
405
389
-16
152.5
11/06
call
2
2
0
155
11/06
call
14
14
0
155
11/06
put
119
119
0
157.5
11/06
put
1
1
0
160
11/06
call
24
24
0
160
11/06
put
102
102
0
162.5
11/06
call
6
6
0
162.5
11/06
put
1
21
+20
165
11/06
call
76
76
0
165
11/06
put
102
95
-7
167.5
11/06
call
3
3
0
167.5
11/06
put
22
39
+17
170
11/06
call
72
68
-4
170
11/06
put
112
115
+3
172.5
11/06
call
38
41
+3
172.5
11/06
put
10
10
0
175
11/06
call
45
48
+3
175
11/06
put
7
9
+2
177.5
11/06
call
20
20
0
180
11/06
call
55
52
-3
182.5
11/06
call
8
12
+4
185
11/06
call
7
10
+3
187.5
11/06
call
27
27
0
190
11/06
call
1
1
0
Expiration 2026-11-13
MMM open interest, settled 2026-10-21, expiration 2026-11-13, strikes 140 to 225
Strike
Expiry
Type
Prior OI
Settled OI
Change
140
11/13
put
99
99
0
145
11/13
put
13
13
0
150
11/13
call
6
6
0
150
11/13
put
31
31
0
155
11/13
call
3
3
0
155
11/13
put
14
14
0
160
11/13
call
58
54
-4
160
11/13
put
88
89
+1
165
11/13
call
97
73
-24
165
11/13
put
58
59
+1
170
11/13
call
93
138
+45
170
11/13
put
150
152
+2
175
11/13
call
122
140
+18
175
11/13
put
56
56
0
180
11/13
call
66
65
-1
180
11/13
put
9
9
0
185
11/13
call
30
30
0
190
11/13
call
0
18
+18
190
11/13
put
1
1
0
195
11/13
put
1
1
0
210
11/13
call
14
14
0
215
11/13
call
1
1
0
220
11/13
call
1
1
0
225
11/13
call
1
1
0
Expiration 2026-11-20
MMM open interest, settled 2026-10-21, expiration 2026-11-20, strikes 100 to 230
Strike
Expiry
Type
Prior OI
Settled OI
Change
100
11/20
call
1
1
0
110
11/20
call
8
8
0
110
11/20
put
1
1
0
120
11/20
put
1
1
0
125
11/20
call
5
5
0
125
11/20
put
2
2
0
130
11/20
call
9
9
0
130
11/20
put
125
124
-1
135
11/20
call
1
1
0
135
11/20
put
136
134
-2
140
11/20
call
6
6
0
140
11/20
put
184
166
-18
145
11/20
call
2
2
0
145
11/20
put
166
163
-3
150
11/20
call
104
104
0
150
11/20
put
1,073
1,212
+139
152.5
11/20
put
5
7
+2
155
11/20
call
44
44
0
155
11/20
put
345
337
-8
157.5
11/20
put
22
22
0
160
11/20
call
420
418
-2
160
11/20
put
699
724
+25
162.5
11/20
call
6
6
0
162.5
11/20
put
54
93
+39
165
11/20
call
1,183
1,146
-37
165
11/20
put
598
612
+14
167.5
11/20
call
26
26
0
167.5
11/20
put
46
46
0
170
11/20
call
1,402
1,398
-4
170
11/20
put
392
401
+9
172.5
11/20
call
127
124
-3
172.5
11/20
put
8
10
+2
175
11/20
call
5,403
5,368
-35
175
11/20
put
45
46
+1
177.5
11/20
call
55
61
+6
177.5
11/20
put
4
4
0
180
11/20
call
858
875
+17
180
11/20
put
156
156
0
182.5
11/20
call
40
111
+71
185
11/20
call
7,201
7,587
+386
185
11/20
put
39
39
0
187.5
11/20
call
13
19
+6
190
11/20
call
440
440
0
190
11/20
put
11
11
0
195
11/20
call
373
373
0
200
11/20
call
462
462
0
205
11/20
call
1
1
0
210
11/20
call
54
54
0
215
11/20
put
1
1
0
220
11/20
call
17
17
0
230
11/20
call
15
15
0
Expiration 2026-11-27
MMM open interest, settled 2026-10-21, expiration 2026-11-27, strikes 130 to 195
Strike
Expiry
Type
Prior OI
Settled OI
Change
130
11/27
put
0
3
+3
140
11/27
put
1
1
0
145
11/27
call
1
1
0
145
11/27
put
1
1
0
150
11/27
put
12
13
+1
155
11/27
call
1
1
0
155
11/27
put
9
9
0
160
11/27
call
5
5
0
160
11/27
put
23
23
0
165
11/27
call
10
11
+1
165
11/27
put
3
3
0
170
11/27
call
23
23
0
170
11/27
put
22
22
0
175
11/27
call
27
31
+4
175
11/27
put
6
6
0
180
11/27
call
27
28
+1
180
11/27
put
4
4
0
185
11/27
call
5
64
+59
190
11/27
call
4
68
+64
195
11/27
call
1
2
+1
Later expirations (2026-12-18, 2027-01-15, 2027-03-19, 2027-04-16, 2027-06-17, 2027-09-17, 2028-01-21, 2029-01-19) and all other strikes are in the Markdown table.