PFE Options Open Interest by Strike, Oct 21 Settlement
PFE 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 15 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, 615 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 24 to 36. Source: SquawkFlow's archive of settled open interest. Counts are contracts, not trades; they do not identify which side opened or closed a position.
PFE: largest changes in the full book, settled 2026-10-21 vs 2026-10-20
Strike
Expiry
Type
Prior OI
Settled OI
Change
33
11/20
call
2,610
4,357
+1,747
31
11/06
call
2,346
4,071
+1,725
27
12/17
put
4,313
5,263
+950
29
01/15
call
16,917
15,985
-932
27
03/19
put
9,042
9,780
+738
33
01/15
call
6,749
7,389
+640
30
10/23
put
6,220
5,617
-603
30.5
10/23
call
2,175
2,769
+594
26
12/18
put
8,875
9,398
+523
29.5
11/06
call
1,404
1,922
+518
35
10/30
call
1,237
1,737
+500
13
06/17
put
4,672
5,172
+500
33
03/19
call
1,727
2,186
+459
23
03/19
put
10,575
10,179
-396
27
01/21
put
14,980
15,345
+365
Expiration 2026-10-23
PFE open interest, settled 2026-10-21, expiration 2026-10-23, strikes 15 to 39
Strike
Expiry
Type
Prior OI
Settled OI
Change
15
10/23
call
13
12
-1
15
10/23
put
2
2
0
18
10/23
call
7
6
-1
18
10/23
put
1
1
0
19
10/23
call
14
14
0
20
10/23
call
15
15
0
20
10/23
put
5
5
0
21
10/23
call
25
25
0
22
10/23
call
77
131
+54
22
10/23
put
1
1
0
22.5
10/23
call
90
140
+50
22.5
10/23
put
0
1
+1
23
10/23
call
62
75
+13
23
10/23
put
0
1
+1
23.5
10/23
call
22
51
+29
23.5
10/23
put
4
4
0
24
10/23
call
6
10
+4
24
10/23
put
63
63
0
24.5
10/23
call
9
13
+4
24.5
10/23
put
212
213
+1
25
10/23
call
15
16
+1
25
10/23
put
338
338
0
25.5
10/23
call
94
99
+5
25.5
10/23
put
130
131
+1
26
10/23
call
163
158
-5
26
10/23
put
555
555
0
26.5
10/23
call
128
123
-5
26.5
10/23
put
415
415
0
27
10/23
call
2,495
2,453
-42
27
10/23
put
2,542
2,532
-10
27.5
10/23
call
1,382
1,280
-102
27.5
10/23
put
1,979
1,978
-1
28
10/23
call
1,376
1,311
-65
28
10/23
put
2,794
2,862
+68
28.5
10/23
call
1,557
1,546
-11
28.5
10/23
put
1,233
1,258
+25
29
10/23
call
5,461
5,313
-148
29
10/23
put
2,131
2,100
-31
29.5
10/23
call
2,711
2,614
-97
29.5
10/23
put
6,469
6,711
+242
30
10/23
call
4,452
4,624
+172
30
10/23
put
6,220
5,617
-603
30.5
10/23
call
2,175
2,769
+594
30.5
10/23
put
13,360
13,463
+103
31
10/23
call
4,875
5,126
+251
31
10/23
put
37
43
+6
31.5
10/23
call
2,426
2,566
+140
31.5
10/23
put
1
0
-1
32
10/23
call
2,445
2,546
+101
32
10/23
put
79
0
-79
32.5
10/23
call
536
536
0
32.5
10/23
put
1
1
0
33
10/23
call
56
56
0
33
10/23
put
5
0
-5
33.5
10/23
call
22
22
0
33.5
10/23
put
1
1
0
34
10/23
call
205
205
0
34
10/23
put
3
3
0
35
10/23
call
287
287
0
35
10/23
put
292
292
0
36
10/23
call
5
5
0
36
10/23
put
0
1
+1
37
10/23
call
2
2
0
37
10/23
put
0
1
+1
38
10/23
call
6
6
0
38
10/23
put
1
0
-1
39
10/23
call
3
3
0
Expiration 2026-10-30
PFE open interest, settled 2026-10-21, expiration 2026-10-30, strikes 15 to 39
Strike
Expiry
Type
Prior OI
Settled OI
Change
15
10/30
call
3
4
+1
18
10/30
put
3
4
+1
19
10/30
put
5
5
0
21
10/30
put
1
1
0
22
10/30
call
1
1
0
22.5
10/30
call
1
1
0
22.5
10/30
put
5
5
0
23
10/30
call
23
24
+1
23
10/30
put
3
3
0
23.5
10/30
call
2
2
0
23.5
10/30
put
4
4
0
24
10/30
call
2
2
0
24
10/30
put
2
2
0
24.5
10/30
call
23
25
+2
24.5
10/30
put
101
101
0
25
10/30
call
55
60
+5
25
10/30
put
55
45
-10
25.5
10/30
call
8
8
0
25.5
10/30
put
95
95
0
26
10/30
call
127
127
0
26
10/30
put
381
380
-1
26.5
10/30
call
856
848
-8
26.5
10/30
put
731
721
-10
27
10/30
call
1,302
1,348
+46
27
10/30
put
629
618
-11
27.5
10/30
call
650
650
0
27.5
10/30
put
1,526
1,523
-3
28
10/30
call
1,402
1,404
+2
28
10/30
put
1,007
885
-122
28.5
10/30
call
1,297
1,298
+1
28.5
10/30
put
509
518
+9
29
10/30
call
4,809
4,898
+89
29
10/30
put
1,405
1,491
+86
29.5
10/30
call
4,684
4,431
-253
29.5
10/30
put
837
867
+30
30
10/30
call
6,754
6,958
+204
30
10/30
put
250
429
+179
30.5
10/30
call
3,110
3,280
+170
30.5
10/30
put
21
21
0
31
10/30
call
2,081
2,128
+47
31
10/30
put
86
84
-2
31.5
10/30
call
345
349
+4
31.5
10/30
put
12
12
0
32
10/30
call
946
941
-5
32
10/30
put
8
9
+1
32.5
10/30
call
79
79
0
32.5
10/30
put
1
0
-1
33
10/30
call
105
104
-1
33
10/30
put
10
0
-10
33.5
10/30
call
5
5
0
33.5
10/30
put
1
1
0
34
10/30
call
10
10
0
34
10/30
put
1
1
0
35
10/30
call
1,237
1,737
+500
35
10/30
put
65
65
0
36
10/30
call
2
2
0
37
10/30
call
6
6
0
38
10/30
call
1
1
0
39
10/30
call
1
1
0
Expiration 2026-11-06
PFE open interest, settled 2026-10-21, expiration 2026-11-06, strikes 15 to 39
Strike
Expiry
Type
Prior OI
Settled OI
Change
15
11/06
call
9
9
0
20
11/06
put
0
1
+1
21
11/06
call
1
1
0
21
11/06
put
8
8
0
23
11/06
put
10
10
0
23.5
11/06
put
1
1
0
24
11/06
put
11
11
0
24.5
11/06
call
1
1
0
24.5
11/06
put
278
278
0
25
11/06
call
13
13
0
25
11/06
put
170
170
0
25.5
11/06
call
17
17
0
25.5
11/06
put
151
151
0
26
11/06
call
286
286
0
26
11/06
put
568
572
+4
26.5
11/06
call
53
61
+8
26.5
11/06
put
212
488
+276
27
11/06
call
1,199
1,199
0
27
11/06
put
402
331
-71
27.5
11/06
call
452
451
-1
27.5
11/06
put
220
223
+3
28
11/06
call
1,564
1,495
-69
28
11/06
put
638
631
-7
28.5
11/06
call
1,729
1,744
+15
28.5
11/06
put
490
501
+11
29
11/06
call
1,632
1,608
-24
29
11/06
put
1,072
1,086
+14
29.5
11/06
call
1,404
1,922
+518
29.5
11/06
put
605
636
+31
30
11/06
call
2,156
2,274
+118
30
11/06
put
3,920
3,899
-21
30.5
11/06
call
1,964
1,972
+8
30.5
11/06
put
100
149
+49
31
11/06
call
2,346
4,071
+1,725
31
11/06
put
118
118
0
31.5
11/06
call
549
546
-3
31.5
11/06
put
6
6
0
32
11/06
call
302
308
+6
32
11/06
put
1
1
0
32.5
11/06
call
94
97
+3
32.5
11/06
put
400
400
0
33
11/06
call
152
165
+13
33
11/06
put
603
603
0
33.5
11/06
call
31
38
+7
33.5
11/06
put
702
702
0
34
11/06
call
1,361
1,367
+6
34
11/06
put
400
400
0
35
11/06
call
13
17
+4
35
11/06
put
5
2
-3
36
11/06
call
2
18
+16
37
11/06
call
2
4
+2
38
11/06
call
1
3
+2
39
11/06
call
2
3
+1
Expiration 2026-11-13
PFE open interest, settled 2026-10-21, expiration 2026-11-13, strikes 15 to 36
Strike
Expiry
Type
Prior OI
Settled OI
Change
15
11/13
call
5
5
0
21
11/13
put
5
5
0
22
11/13
put
10
10
0
23
11/13
put
5
5
0
24
11/13
call
1
1
0
24
11/13
put
403
403
0
24.5
11/13
put
33
33
0
25
11/13
put
37
47
+10
25.5
11/13
call
3
3
0
25.5
11/13
put
177
178
+1
26
11/13
call
14
14
0
26
11/13
put
212
207
-5
26.5
11/13
call
100
100
0
26.5
11/13
put
616
616
0
27
11/13
call
167
168
+1
27
11/13
put
243
244
+1
27.5
11/13
call
375
375
0
27.5
11/13
put
148
149
+1
28
11/13
call
456
453
-3
28
11/13
put
120
121
+1
28.5
11/13
call
338
334
-4
28.5
11/13
put
58
116
+58
29
11/13
call
701
713
+12
29
11/13
put
3,105
3,105
0
29.5
11/13
call
433
462
+29
29.5
11/13
put
240
212
-28
30
11/13
call
945
990
+45
30
11/13
put
44
44
0
30.5
11/13
call
302
328
+26
30.5
11/13
put
10
10
0
31
11/13
call
762
758
-4
31
11/13
put
2
2
0
31.5
11/13
call
1,644
1,649
+5
32
11/13
call
120
273
+153
32.5
11/13
call
67
216
+149
33
11/13
call
34
33
-1
33.5
11/13
call
15
15
0
33.5
11/13
put
2
2
0
34
11/13
call
14
28
+14
35
11/13
call
102
102
0
36
11/13
call
6
6
0
Expiration 2026-11-20
PFE open interest, settled 2026-10-21, expiration 2026-11-20, strikes 13 to 39
Strike
Expiry
Type
Prior OI
Settled OI
Change
13
11/20
call
29
29
0
13
11/20
put
428
428
0
14
11/20
put
5
5
0
15
11/20
call
8
8
0
16
11/20
call
1
1
0
16
11/20
put
50
50
0
17
11/20
call
1
1
0
17
11/20
put
2
2
0
18
11/20
call
7
7
0
18
11/20
put
198
198
0
19
11/20
call
1
1
0
19
11/20
put
540
540
0
20
11/20
call
260
260
0
20
11/20
put
979
979
0
21
11/20
call
17
17
0
21
11/20
put
907
907
0
22
11/20
call
298
298
0
22
11/20
put
2,588
2,587
-1
23
11/20
call
586
586
0
23
11/20
put
6,924
6,924
0
24
11/20
call
1,673
1,673
0
24
11/20
put
4,157
4,152
-5
25
11/20
call
5,707
5,708
+1
25
11/20
put
43,653
43,645
-8
25.5
11/20
put
6
6
0
26
11/20
call
5,366
5,350
-16
26
11/20
put
18,548
18,522
-26
26.5
11/20
call
46
46
0
26.5
11/20
put
31
82
+51
27
11/20
call
15,138
14,853
-285
27
11/20
put
8,109
8,233
+124
27.5
11/20
call
1
2
+1
27.5
11/20
put
81
82
+1
28
11/20
call
28,680
28,441
-239
28
11/20
put
10,687
10,677
-10
28.5
11/20
call
0
10
+10
28.5
11/20
put
50
88
+38
29
11/20
call
17,427
17,454
+27
29
11/20
put
1,137
1,133
-4
29.5
11/20
call
649
677
+28
29.5
11/20
put
282
323
+41
30
11/20
call
24,540
24,195
-345
30
11/20
put
559
540
-19
30.5
11/20
call
354
425
+71
30.5
11/20
put
14
28
+14
31
11/20
call
12,103
12,100
-3
31
11/20
put
224
219
-5
31.5
11/20
call
150
263
+113
31.5
11/20
put
3
3
0
32
11/20
call
11,601
11,574
-27
32
11/20
put
25
25
0
32.5
11/20
call
37
56
+19
32.5
11/20
put
2
1
-1
33
11/20
call
2,610
4,357
+1,747
33
11/20
put
31
29
-2
33.5
11/20
call
30
35
+5
34
11/20
call
1,262
1,300
+38
34
11/20
put
47
47
0
35
11/20
call
1,044
1,095
+51
35
11/20
put
0
9
+9
36
11/20
call
595
595
0
36
11/20
put
15
15
0
37
11/20
call
41
41
0
37
11/20
put
1
1
0
38
11/20
call
86
86
0
38
11/20
put
131
131
0
39
11/20
call
4,815
4,815
0
Expiration 2026-11-27
PFE open interest, settled 2026-10-21, expiration 2026-11-27, strikes 15 to 38
Strike
Expiry
Type
Prior OI
Settled OI
Change
15
11/27
call
0
1
+1
24
11/27
put
10
10
0
25
11/27
call
3
2
-1
25
11/27
put
6
4
-2
26
11/27
call
3
3
0
26
11/27
put
50
81
+31
27
11/27
call
27
27
0
27
11/27
put
49
50
+1
28
11/27
call
103
103
0
28
11/27
put
238
276
+38
29
11/27
call
341
354
+13
29
11/27
put
64
68
+4
30
11/27
call
434
448
+14
30
11/27
put
31
29
-2
31
11/27
call
251
273
+22
31
11/27
put
56
56
0
32
11/27
call
3,423
3,523
+100
32
11/27
put
20
20
0
33
11/27
call
77
77
0
33
11/27
put
2
2
0
34
11/27
call
48
88
+40
34
11/27
put
1
1
0
35
11/27
call
4
7
+3
38
11/27
call
1
1
0
Later expirations (2026-12-18, 2027-01-15, 2027-03-19, 2027-06-17, 2027-09-17, 2027-12-17, 2028-01-21, 2028-12-15, 2029-01-19) and all other strikes are in the Markdown table.