MRNA Options Open Interest by Strike, Oct 21 Settlement
MRNA 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 16 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, 1,786 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 197 to 295. Source: SquawkFlow's archive of settled open interest. Counts are contracts, not trades; they do not identify which side opened or closed a position.
MRNA: largest changes in the full book, settled 2026-10-21 vs 2026-10-20
Strike
Expiry
Type
Prior OI
Settled OI
Change
210
10/23
put
5,500
8,538
+3,038
185
11/20
put
2,597
5,207
+2,610
195
10/30
put
561
2,871
+2,310
330
11/06
call
155
1,280
+1,125
200
10/23
put
6,007
7,095
+1,088
190
10/30
put
891
1,800
+909
140
12/18
call
1,217
334
-883
200
10/30
put
5,692
6,450
+758
220
10/23
put
3,325
4,062
+737
240
10/30
call
3,314
4,050
+736
135
12/18
call
2,274
1,570
-704
245
10/30
call
803
1,502
+699
270
03/19
put
210
811
+601
220
03/19
put
325
864
+539
310
10/30
call
300
834
+534
Expiration 2026-10-23
MRNA open interest, settled 2026-10-21, expiration 2026-10-23, strikes 197.5 to 295
Strike
Expiry
Type
Prior OI
Settled OI
Change
197.5
10/23
call
125
134
+9
197.5
10/23
put
234
219
-15
200
10/23
call
553
557
+4
200
10/23
put
6,007
7,095
+1,088
202.5
10/23
call
37
55
+18
202.5
10/23
put
394
416
+22
205
10/23
call
174
178
+4
205
10/23
put
399
511
+112
207.5
10/23
call
93
91
-2
207.5
10/23
put
446
322
-124
210
10/23
call
261
292
+31
210
10/23
put
5,500
8,538
+3,038
212.5
10/23
call
143
143
0
212.5
10/23
put
849
849
0
215
10/23
call
1,248
1,271
+23
215
10/23
put
621
754
+133
217.5
10/23
call
1,074
1,056
-18
217.5
10/23
put
284
388
+104
220
10/23
call
1,583
1,533
-50
220
10/23
put
3,325
4,062
+737
222.5
10/23
call
5,243
5,039
-204
222.5
10/23
put
417
661
+244
225
10/23
call
534
472
-62
225
10/23
put
701
1,043
+342
227.5
10/23
call
254
207
-47
227.5
10/23
put
175
633
+458
230
10/23
call
939
870
-69
230
10/23
put
696
851
+155
232.5
10/23
call
1,005
958
-47
232.5
10/23
put
208
204
-4
235
10/23
call
4,919
4,821
-98
235
10/23
put
456
494
+38
237.5
10/23
call
479
366
-113
237.5
10/23
put
291
343
+52
240
10/23
call
3,609
3,556
-53
240
10/23
put
1,048
1,512
+464
242.5
10/23
call
305
387
+82
242.5
10/23
put
616
627
+11
245
10/23
call
654
915
+261
245
10/23
put
662
827
+165
247.5
10/23
call
152
221
+69
247.5
10/23
put
16
111
+95
250
10/23
call
4,136
4,303
+167
250
10/23
put
1,015
1,436
+421
252.5
10/23
call
3,414
3,550
+136
252.5
10/23
put
5
148
+143
255
10/23
call
390
547
+157
255
10/23
put
15
66
+51
257.5
10/23
call
398
444
+46
257.5
10/23
put
11
78
+67
260
10/23
call
1,382
1,691
+309
260
10/23
put
53
58
+5
262.5
10/23
call
2,218
2,248
+30
262.5
10/23
put
1
8
+7
265
10/23
call
507
606
+99
265
10/23
put
10
14
+4
267.5
10/23
call
378
408
+30
267.5
10/23
put
0
15
+15
270
10/23
call
1,269
1,787
+518
270
10/23
put
292
310
+18
272.5
10/23
call
155
233
+78
275
10/23
call
595
666
+71
275
10/23
put
13
22
+9
277.5
10/23
call
1,119
1,128
+9
277.5
10/23
put
4
4
0
280
10/23
call
637
1,000
+363
280
10/23
put
2
14
+12
282.5
10/23
call
193
243
+50
282.5
10/23
put
4
4
0
285
10/23
call
136
156
+20
285
10/23
put
7
7
0
287.5
10/23
call
85
101
+16
287.5
10/23
put
1
1
0
290
10/23
call
777
624
-153
290
10/23
put
3
3
0
292.5
10/23
call
277
282
+5
292.5
10/23
put
1
1
0
295
10/23
call
124
135
+11
295
10/23
put
3
3
0
Expiration 2026-10-30
MRNA open interest, settled 2026-10-21, expiration 2026-10-30, strikes 197.5 to 295
Strike
Expiry
Type
Prior OI
Settled OI
Change
197.5
10/30
call
95
92
-3
197.5
10/30
put
39
131
+92
200
10/30
call
952
939
-13
200
10/30
put
5,692
6,450
+758
202.5
10/30
call
114
113
-1
202.5
10/30
put
50
160
+110
205
10/30
call
111
110
-1
205
10/30
put
320
343
+23
207.5
10/30
call
74
75
+1
207.5
10/30
put
70
65
-5
210
10/30
call
161
159
-2
210
10/30
put
312
651
+339
212.5
10/30
call
97
88
-9
212.5
10/30
put
120
210
+90
215
10/30
call
639
617
-22
215
10/30
put
164
211
+47
217.5
10/30
call
43
43
0
217.5
10/30
put
49
179
+130
220
10/30
call
1,141
917
-224
220
10/30
put
499
691
+192
222.5
10/30
call
183
132
-51
222.5
10/30
put
36
48
+12
225
10/30
call
673
614
-59
225
10/30
put
592
607
+15
227.5
10/30
call
121
111
-10
227.5
10/30
put
161
216
+55
230
10/30
call
540
378
-162
230
10/30
put
183
235
+52
232.5
10/30
call
390
218
-172
232.5
10/30
put
78
126
+48
235
10/30
call
229
179
-50
235
10/30
put
109
292
+183
237.5
10/30
call
41
38
-3
237.5
10/30
put
68
153
+85
240
10/30
call
3,314
4,050
+736
240
10/30
put
373
473
+100
242.5
10/30
call
43
45
+2
242.5
10/30
put
85
109
+24
245
10/30
call
803
1,502
+699
245
10/30
put
20
351
+331
247.5
10/30
call
82
92
+10
247.5
10/30
put
2
105
+103
250
10/30
call
3,902
3,938
+36
250
10/30
put
27
234
+207
252.5
10/30
call
9
46
+37
252.5
10/30
put
5
24
+19
255
10/30
call
113
145
+32
255
10/30
put
1
72
+71
257.5
10/30
call
12
21
+9
257.5
10/30
put
9
44
+35
260
10/30
call
461
555
+94
260
10/30
put
26
43
+17
262.5
10/30
call
0
3
+3
262.5
10/30
put
1
9
+8
265
10/30
call
184
278
+94
265
10/30
put
21
22
+1
267.5
10/30
call
1
5
+4
270
10/30
call
157
212
+55
270
10/30
put
0
3
+3
272.5
10/30
call
1
11
+10
272.5
10/30
put
12
30
+18
275
10/30
call
355
371
+16
277.5
10/30
call
0
12
+12
280
10/30
call
109
257
+148
280
10/30
put
11
23
+12
282.5
10/30
call
2
6
+4
285
10/30
call
92
101
+9
287.5
10/30
call
0
1
+1
290
10/30
call
177
209
+32
292.5
10/30
call
0
88
+88
295
10/30
call
107
114
+7
295
10/30
put
0
1
+1
Expiration 2026-11-06
MRNA open interest, settled 2026-10-21, expiration 2026-11-06, strikes 177.5 to 310
Strike
Expiry
Type
Prior OI
Settled OI
Change
177.5
11/06
put
10
10
0
180
11/06
call
285
285
0
180
11/06
put
156
172
+16
182.5
11/06
call
2
3
+1
182.5
11/06
put
11
12
+1
185
11/06
call
15
14
-1
185
11/06
put
62
70
+8
187.5
11/06
call
21
21
0
187.5
11/06
put
30
29
-1
190
11/06
call
81
78
-3
190
11/06
put
74
69
-5
192.5
11/06
call
28
28
0
192.5
11/06
put
32
32
0
195
11/06
call
619
618
-1
195
11/06
put
149
155
+6
197.5
11/06
call
15
15
0
197.5
11/06
put
60
60
0
200
11/06
call
189
188
-1
200
11/06
put
195
221
+26
202.5
11/06
call
30
30
0
202.5
11/06
put
55
58
+3
205
11/06
call
40
45
+5
205
11/06
put
97
107
+10
207.5
11/06
call
58
58
0
207.5
11/06
put
10
9
-1
210
11/06
call
103
103
0
210
11/06
put
187
309
+122
212.5
11/06
call
27
27
0
212.5
11/06
put
141
140
-1
215
11/06
call
53
49
-4
215
11/06
put
66
66
0
217.5
11/06
call
1
1
0
217.5
11/06
put
0
11
+11
220
11/06
call
393
388
-5
220
11/06
put
229
400
+171
222.5
11/06
call
11
15
+4
222.5
11/06
put
4
7
+3
225
11/06
call
43
55
+12
225
11/06
put
41
48
+7
227.5
11/06
call
9
8
-1
227.5
11/06
put
100
89
-11
230
11/06
call
104
96
-8
230
11/06
put
31
43
+12
232.5
11/06
call
38
65
+27
232.5
11/06
put
16
18
+2
235
11/06
call
50
40
-10
235
11/06
put
29
31
+2
237.5
11/06
call
3
8
+5
237.5
11/06
put
0
6
+6
240
11/06
call
102
100
-2
240
11/06
put
90
213
+123
245
11/06
call
35
52
+17
245
11/06
put
15
48
+33
250
11/06
call
175
347
+172
250
11/06
put
54
120
+66
255
11/06
call
15
40
+25
255
11/06
put
1
5
+4
260
11/06
call
99
179
+80
260
11/06
put
2
3
+1
265
11/06
call
52
129
+77
265
11/06
put
0
1
+1
270
11/06
call
191
195
+4
270
11/06
put
0
1
+1
275
11/06
call
63
75
+12
275
11/06
put
0
1
+1
280
11/06
call
178
172
-6
280
11/06
put
0
1
+1
285
11/06
call
18
19
+1
290
11/06
call
19
23
+4
295
11/06
call
35
34
-1
295
11/06
put
0
1
+1
300
11/06
call
150
163
+13
300
11/06
put
3
13
+10
305
11/06
call
34
37
+3
310
11/06
call
8
29
+21
Expiration 2026-11-13
MRNA open interest, settled 2026-10-21, expiration 2026-11-13, strikes 165 to 320
Strike
Expiry
Type
Prior OI
Settled OI
Change
165
11/13
call
1
1
0
165
11/13
put
36
36
0
167.5
11/13
call
6
6
0
167.5
11/13
put
15
15
0
170
11/13
call
4
4
0
170
11/13
put
91
89
-2
172.5
11/13
put
4
4
0
175
11/13
call
1
1
0
175
11/13
put
32
36
+4
177.5
11/13
call
2
2
0
177.5
11/13
put
18
18
0
180
11/13
call
11
11
0
180
11/13
put
66
67
+1
182.5
11/13
call
5
5
0
182.5
11/13
put
14
14
0
185
11/13
call
14
14
0
185
11/13
put
48
49
+1
187.5
11/13
call
7
7
0
187.5
11/13
put
4
4
0
190
11/13
call
16
13
-3
190
11/13
put
78
52
-26
192.5
11/13
call
9
9
0
192.5
11/13
put
8
7
-1
195
11/13
call
18
19
+1
195
11/13
put
48
48
0
197.5
11/13
call
3
3
0
197.5
11/13
put
3
3
0
200
11/13
call
45
45
0
200
11/13
put
48
63
+15
202.5
11/13
call
31
31
0
202.5
11/13
put
17
17
0
205
11/13
call
50
60
+10
205
11/13
put
10
10
0
207.5
11/13
call
17
26
+9
207.5
11/13
put
16
16
0
210
11/13
call
25
25
0
210
11/13
put
58
60
+2
212.5
11/13
call
14
14
0
212.5
11/13
put
22
21
-1
215
11/13
call
273
273
0
215
11/13
put
51
58
+7
220
11/13
call
58
53
-5
220
11/13
put
620
628
+8
225
11/13
call
83
91
+8
225
11/13
put
46
46
0
230
11/13
call
106
81
-25
230
11/13
put
61
61
0
235
11/13
call
38
65
+27
235
11/13
put
35
42
+7
240
11/13
call
50
65
+15
240
11/13
put
19
36
+17
245
11/13
call
51
54
+3
245
11/13
put
5
6
+1
250
11/13
call
60
113
+53
250
11/13
put
12
21
+9
255
11/13
call
29
33
+4
255
11/13
put
20
21
+1
260
11/13
call
56
67
+11
260
11/13
put
2
3
+1
265
11/13
call
6
20
+14
265
11/13
put
1
1
0
270
11/13
call
8
14
+6
270
11/13
put
0
1
+1
275
11/13
call
23
25
+2
280
11/13
call
16
25
+9
280
11/13
put
0
1
+1
285
11/13
call
14
24
+10
285
11/13
put
0
14
+14
290
11/13
call
52
52
0
295
11/13
call
2
12
+10
295
11/13
put
0
10
+10
300
11/13
call
20
243
+223
300
11/13
put
0
107
+107
310
11/13
call
8
8
0
320
11/13
call
26
28
+2
Expiration 2026-11-20
MRNA open interest, settled 2026-10-21, expiration 2026-11-20, strikes 155 to 330
Strike
Expiry
Type
Prior OI
Settled OI
Change
155
11/20
call
582
582
0
155
11/20
put
2,071
1,966
-105
160
11/20
call
3,171
3,171
0
160
11/20
put
2,787
2,781
-6
165
11/20
call
918
917
-1
165
11/20
put
1,784
1,781
-3
170
11/20
call
1,276
1,274
-2
170
11/20
put
6,130
6,391
+261
175
11/20
call
2,859
2,858
-1
175
11/20
put
592
616
+24
180
11/20
call
1,654
1,644
-10
180
11/20
put
2,053
2,250
+197
185
11/20
call
856
779
-77
185
11/20
put
2,597
5,207
+2,610
190
11/20
call
660
659
-1
190
11/20
put
2,581
2,809
+228
192.5
11/20
put
9
9
0
195
11/20
call
385
375
-10
195
11/20
put
311
384
+73
197.5
11/20
call
1
2
+1
197.5
11/20
put
21
21
0
200
11/20
call
7,767
7,757
-10
200
11/20
put
1,255
1,324
+69
202.5
11/20
call
7
7
0
202.5
11/20
put
139
139
0
205
11/20
call
5
5
0
205
11/20
put
69
178
+109
207.5
11/20
call
2
2
0
207.5
11/20
put
45
45
0
210
11/20
call
613
605
-8
210
11/20
put
244
471
+227
212.5
11/20
call
5
5
0
212.5
11/20
put
54
61
+7
215
11/20
call
8
28
+20
215
11/20
put
111
121
+10
217.5
11/20
call
1
1
0
217.5
11/20
put
33
36
+3
220
11/20
call
2,779
2,748
-31
220
11/20
put
583
576
-7
222.5
11/20
call
29
28
-1
222.5
11/20
put
71
71
0
225
11/20
call
90
90
0
225
11/20
put
112
119
+7
227.5
11/20
call
30
30
0
227.5
11/20
put
48
48
0
230
11/20
call
1,610
1,551
-59
230
11/20
put
442
455
+13
232.5
11/20
call
65
65
0
232.5
11/20
put
63
68
+5
235
11/20
call
27
31
+4
235
11/20
put
85
88
+3
237.5
11/20
call
49
47
-2
237.5
11/20
put
16
16
0
240
11/20
call
1,260
1,219
-41
240
11/20
put
198
496
+298
245
11/20
call
24
27
+3
245
11/20
put
26
59
+33
250
11/20
call
1,370
1,364
-6
250
11/20
put
80
156
+76
255
11/20
call
18
47
+29
255
11/20
put
2
14
+12
260
11/20
call
1,707
1,724
+17
260
11/20
put
21
26
+5
265
11/20
call
59
112
+53
270
11/20
call
1,447
1,490
+43
270
11/20
put
4
4
0
280
11/20
call
377
383
+6
280
11/20
put
2
5
+3
290
11/20
call
3,174
3,187
+13
290
11/20
put
10
10
0
300
11/20
call
315
362
+47
300
11/20
put
51
51
0
310
11/20
call
425
449
+24
310
11/20
put
0
30
+30
320
11/20
call
249
265
+16
320
11/20
put
1
1
0
330
11/20
call
1,013
1,349
+336
Expiration 2026-11-27
MRNA open interest, settled 2026-10-21, expiration 2026-11-27, strikes 120 to 330
Strike
Expiry
Type
Prior OI
Settled OI
Change
120
11/27
call
2
2
0
120
11/27
put
2
2
0
125
11/27
call
1
1
0
130
11/27
put
4
4
0
135
11/27
call
5
5
0
135
11/27
put
5
5
0
140
11/27
call
5
5
0
140
11/27
put
6
6
0
145
11/27
call
3
3
0
145
11/27
put
5
5
0
150
11/27
call
1
1
0
150
11/27
put
29
29
0
155
11/27
call
1
1
0
155
11/27
put
17
15
-2
160
11/27
call
17
18
+1
160
11/27
put
34
34
0
165
11/27
call
8
9
+1
165
11/27
put
31
31
0
170
11/27
call
14
14
0
170
11/27
put
57
60
+3
175
11/27
call
10
11
+1
175
11/27
put
20
20
0
180
11/27
call
21
20
-1
180
11/27
put
53
57
+4
185
11/27
call
7
7
0
185
11/27
put
33
33
0
190
11/27
call
24
25
+1
190
11/27
put
157
163
+6
195
11/27
call
33
34
+1
195
11/27
put
24
25
+1
200
11/27
call
51
60
+9
200
11/27
put
151
149
-2
205
11/27
call
68
52
-16
205
11/27
put
6
7
+1
210
11/27
call
35
34
-1
210
11/27
put
14
16
+2
215
11/27
call
57
57
0
215
11/27
put
5
5
0
220
11/27
call
66
70
+4
220
11/27
put
51
73
+22
225
11/27
call
36
31
-5
225
11/27
put
25
20
-5
230
11/27
call
40
40
0
230
11/27
put
5
16
+11
235
11/27
call
22
20
-2
235
11/27
put
10
12
+2
240
11/27
call
27
36
+9
240
11/27
put
9
13
+4
245
11/27
call
83
88
+5
245
11/27
put
3
33
+30
250
11/27
call
96
121
+25
250
11/27
put
0
11
+11
255
11/27
call
24
35
+11
260
11/27
call
46
53
+7
260
11/27
put
0
8
+8
265
11/27
call
25
27
+2
270
11/27
call
17
22
+5
270
11/27
put
0
1
+1
275
11/27
call
36
37
+1
275
11/27
put
1
1
0
280
11/27
call
26
24
-2
285
11/27
call
29
30
+1
290
11/27
call
51
29
-22
295
11/27
call
41
31
-10
295
11/27
put
1
1
0
300
11/27
call
11
20
+9
310
11/27
call
22
93
+71
310
11/27
put
1
1
0
320
11/27
call
5
6
+1
320
11/27
put
4
4
0
330
11/27
call
259
356
+97
Later expirations (2026-12-18, 2027-01-15, 2027-02-19, 2027-03-19, 2027-04-16, 2027-06-17, 2027-12-17, 2028-01-21, 2028-12-15, 2029-01-19) and all other strikes are in the Markdown table.