XLF Options Open Interest by Strike, Oct 21 Settlement
XLF 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 23 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, 1,176 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 45 to 67. Source: SquawkFlow's archive of settled open interest. Counts are contracts, not trades; they do not identify which side opened or closed a position.
XLF: largest changes in the full book, settled 2026-10-21 vs 2026-10-20
Strike
Expiry
Type
Prior OI
Settled OI
Change
47
01/15
put
27,867
57,454
+29,587
51
01/15
put
76,309
101,086
+24,777
53
11/20
put
115,355
140,121
+24,766
59
11/20
call
11,098
31,106
+20,008
56
11/20
call
114,189
106,848
-7,341
48
01/21
put
500
7,802
+7,302
50
12/18
put
98,888
93,925
-4,963
53.5
11/02
put
4
2,303
+2,299
55
12/18
call
30,042
31,529
+1,487
55
10/30
put
13,831
15,300
+1,469
55
12/18
put
13,163
14,622
+1,459
54
10/30
put
2,499
1,279
-1,220
55
11/20
call
29,132
28,111
-1,021
55
01/15
call
82,434
81,604
-830
55.5
10/23
put
741
1,569
+828
Expiration 2026-10-23
XLF open interest, settled 2026-10-21, expiration 2026-10-23, strikes 30 to 65
Strike
Expiry
Type
Prior OI
Settled OI
Change
30
10/23
call
1
1
0
30
10/23
put
4
4
0
35
10/23
put
4
4
0
40
10/23
put
1
1
0
45
10/23
put
15
15
0
46
10/23
call
4
4
0
46
10/23
put
11
11
0
47
10/23
call
4
5
+1
47
10/23
put
55
55
0
48
10/23
call
3
6
+3
48
10/23
put
55
55
0
49
10/23
call
3
4
+1
49
10/23
put
1,882
1,882
0
50
10/23
call
5
5
0
50
10/23
put
1,701
1,699
-2
51
10/23
call
16
17
+1
51
10/23
put
2,101
2,101
0
51.5
10/23
call
13
14
+1
51.5
10/23
put
2,272
2,272
0
52
10/23
call
44
43
-1
52
10/23
put
1,170
1,170
0
52.5
10/23
call
23
25
+2
52.5
10/23
put
1,705
1,690
-15
53
10/23
call
346
346
0
53
10/23
put
20,898
20,866
-32
53.5
10/23
call
487
488
+1
53.5
10/23
put
5,224
5,127
-97
54
10/23
call
406
403
-3
54
10/23
put
4,200
4,308
+108
54.5
10/23
call
345
304
-41
54.5
10/23
put
2,964
3,185
+221
55
10/23
call
2,898
2,349
-549
55
10/23
put
2,979
2,990
+11
55.5
10/23
call
3,877
3,777
-100
55.5
10/23
put
741
1,569
+828
56
10/23
call
6,746
6,120
-626
56
10/23
put
2,639
2,758
+119
56.5
10/23
call
4,769
4,478
-291
56.5
10/23
put
138
136
-2
57
10/23
call
2,913
3,234
+321
57
10/23
put
34
35
+1
57.5
10/23
call
1,157
1,157
0
57.5
10/23
put
1
2
+1
58
10/23
call
1,481
1,481
0
58.5
10/23
call
2,142
2,142
0
58.5
10/23
put
0
3
+3
59
10/23
call
260
260
0
59
10/23
put
1
1
0
59.5
10/23
call
1,185
1,185
0
59.5
10/23
put
1
3
+2
60
10/23
call
345
345
0
60
10/23
put
0
1
+1
60.5
10/23
call
172
172
0
60.5
10/23
put
0
2
+2
61
10/23
call
415
415
0
61.5
10/23
call
9
9
0
61.5
10/23
put
1
2
+1
62
10/23
call
187
187
0
62.5
10/23
call
111
111
0
62.5
10/23
put
0
2
+2
63
10/23
call
6
6
0
63.5
10/23
call
1
1
0
64
10/23
call
2
2
0
64
10/23
put
0
4
+4
65
10/23
call
16
16
0
Expiration 2026-10-26
XLF open interest, settled 2026-10-21, expiration 2026-10-26, strikes 41 to 60
Strike
Expiry
Type
Prior OI
Settled OI
Change
41
10/26
put
1
6
+5
42
10/26
put
1
6
+5
44
10/26
call
1
1
0
46
10/26
call
0
1
+1
47
10/26
call
0
1
+1
49
10/26
call
1
1
0
49
10/26
put
2
2
0
50
10/26
put
8
8
0
50.5
10/26
put
3
3
0
51
10/26
put
56
54
-2
51.5
10/26
put
40
40
0
52
10/26
call
1
1
0
52
10/26
put
59
58
-1
52.5
10/26
put
2,002
2,002
0
53
10/26
call
7
7
0
53
10/26
put
531
539
+8
53.5
10/26
call
17
17
0
53.5
10/26
put
130
167
+37
54
10/26
call
2
3
+1
54
10/26
put
74
116
+42
54.5
10/26
call
33
33
0
54.5
10/26
put
85
120
+35
55
10/26
call
69
69
0
55
10/26
put
178
188
+10
55.5
10/26
call
29
47
+18
55.5
10/26
put
271
248
-23
56
10/26
call
138
318
+180
56
10/26
put
9
151
+142
56.5
10/26
call
50
290
+240
56.5
10/26
put
0
1
+1
57
10/26
call
33
224
+191
57.5
10/26
call
528
566
+38
58
10/26
call
71
71
0
58
10/26
put
71
0
-71
59
10/26
call
46
46
0
60
10/26
put
20
20
0
Expiration 2026-10-28
XLF open interest, settled 2026-10-21, expiration 2026-10-28, strikes 49 to 60
Strike
Expiry
Type
Prior OI
Settled OI
Change
49
10/28
put
12
12
0
50
10/28
put
20
19
-1
50.5
10/28
put
11
11
0
51
10/28
put
50
50
0
51.5
10/28
put
25
25
0
52
10/28
put
88
87
-1
52.5
10/28
put
232
466
+234
53
10/28
call
2
2
0
53
10/28
put
187
187
0
53.5
10/28
put
273
272
-1
54
10/28
call
3
3
0
54
10/28
put
163
318
+155
54.5
10/28
call
1
1
0
54.5
10/28
put
252
654
+402
55
10/28
call
58
64
+6
55
10/28
put
168
350
+182
55.5
10/28
call
31
31
0
55.5
10/28
put
48
61
+13
56
10/28
call
453
451
-2
56
10/28
put
2
10
+8
56.5
10/28
call
324
347
+23
57
10/28
call
87
87
0
57.5
10/28
call
37
37
0
57.5
10/28
put
0
75
+75
58
10/28
call
23
23
0
58.5
10/28
call
23
23
0
59
10/28
call
57
57
0
59.5
10/28
call
70
70
0
60
10/28
put
20
35
+15
Expiration 2026-10-30
XLF open interest, settled 2026-10-21, expiration 2026-10-30, strikes 40 to 65
Strike
Expiry
Type
Prior OI
Settled OI
Change
40
10/30
put
11
11
0
45
10/30
put
161
161
0
46
10/30
call
2
2
0
46
10/30
put
25
25
0
47
10/30
put
334
334
0
48
10/30
call
1
1
0
48
10/30
put
419
417
-2
49
10/30
put
4,048
4,048
0
50
10/30
call
13
13
0
50
10/30
put
4,494
4,494
0
51
10/30
call
2
2
0
51
10/30
put
1,175
1,145
-30
51.5
10/30
call
8
8
0
51.5
10/30
put
2,281
2,281
0
52
10/30
call
189
189
0
52
10/30
put
2,913
2,988
+75
52.5
10/30
call
121
121
0
52.5
10/30
put
2,494
2,493
-1
53
10/30
call
303
303
0
53
10/30
put
1,260
1,436
+176
53.5
10/30
call
399
399
0
53.5
10/30
put
1,547
1,500
-47
54
10/30
call
856
857
+1
54
10/30
put
2,499
1,279
-1,220
54.5
10/30
call
915
908
-7
54.5
10/30
put
1,435
1,206
-229
55
10/30
call
2,142
1,968
-174
55
10/30
put
13,831
15,300
+1,469
55.5
10/30
call
1,064
1,064
0
55.5
10/30
put
656
755
+99
56
10/30
call
6,503
6,380
-123
56
10/30
put
455
1,105
+650
56.5
10/30
call
638
649
+11
56.5
10/30
put
81
867
+786
57
10/30
call
1,148
1,140
-8
57
10/30
put
182
182
0
57.5
10/30
call
388
402
+14
57.5
10/30
put
24
24
0
58
10/30
call
4,046
4,072
+26
58
10/30
put
9
9
0
58.5
10/30
call
3,230
3,230
0
59
10/30
call
378
377
-1
59.5
10/30
call
129
126
-3
60
10/30
call
177
177
0
60.5
10/30
call
246
246
0
61
10/30
call
1,000
1,000
0
61.5
10/30
call
2
2
0
62
10/30
call
4
4
0
62.5
10/30
call
1
1
0
63
10/30
call
61
61
0
64
10/30
call
55
55
0
65
10/30
call
324
324
0
Expiration 2026-11-02
XLF open interest, settled 2026-10-21, expiration 2026-11-02, strikes 51 to 59
Strike
Expiry
Type
Prior OI
Settled OI
Change
51
11/02
put
0
1
+1
52
11/02
put
0
18
+18
52.5
11/02
put
0
19
+19
53
11/02
put
0
4
+4
53.5
11/02
put
4
2,303
+2,299
54
11/02
call
0
1
+1
54
11/02
put
1
37
+36
54.5
11/02
put
0
4
+4
55
11/02
call
0
1
+1
55
11/02
put
0
8
+8
55.5
11/02
call
8
16
+8
55.5
11/02
put
46
52
+6
56
11/02
call
1
1
0
56
11/02
put
1
1
0
56.5
11/02
call
10
21
+11
57.5
11/02
call
11
28
+17
57.5
11/02
put
1
0
-1
58
11/02
call
7
22
+15
58
11/02
put
1
1
0
58.5
11/02
call
1
6
+5
59
11/02
call
0
22
+22
Expiration 2026-11-04
XLF open interest, settled 2026-10-21, expiration 2026-11-04, strikes 53 to 57
Strike
Expiry
Type
Prior OI
Settled OI
Change
53
11/04
put
0
32
+32
53.5
11/04
put
0
6
+6
54
11/04
put
0
2
+2
54.5
11/04
put
0
1
+1
55.5
11/04
call
0
6
+6
56
11/04
put
1
22
+21
57
11/04
put
0
11
+11
Later expirations (2026-11-06, 2026-11-13, 2026-11-20, 2026-11-27, 2026-12-18, 2026-12-31, 2027-01-15, 2027-03-19, 2027-03-31, 2027-06-17, 2027-06-30, 2027-09-17, 2027-09-30, 2027-12-17, 2028-01-21, 2028-12-15, 2029-01-19) and all other strikes are in the Markdown table.