MPC Options Open Interest by Strike, Oct 21 Settlement

MPC 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.

The two archived books match. A zero archived difference is not proof that no contracts opened or closed; a repeated capture can also produce matching books.

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 10 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, 943 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 374 to 562. Source: SquawkFlow's archive of settled open interest. Counts are contracts, not trades; they do not identify which side opened or closed a position.

Expiration 2026-11-20

MPC open interest, settled 2026-10-21, expiration 2026-11-20, strikes 260 to 650

Strike	Expiry	Type	Prior OI	Settled OI
260	11/20	call	5	5
270	11/20	call	1	1
270	11/20	put	22	22
280	11/20	call	7	7
280	11/20	put	19	19
290	11/20	call	39	39
290	11/20	put	6	6
300	11/20	call	7	7
300	11/20	put	165	165
310	11/20	call	12	12
310	11/20	put	32	32
320	11/20	call	15	15
320	11/20	put	200	200
330	11/20	call	28	28
330	11/20	put	326	326
340	11/20	call	14	14
340	11/20	put	149	149
350	11/20	call	21	21
350	11/20	put	301	301
360	11/20	call	16	16
360	11/20	put	141	141
370	11/20	call	102	102
370	11/20	put	291	291
380	11/20	call	28	28
380	11/20	put	218	218
390	11/20	call	84	84
390	11/20	put	339	339
400	11/20	call	401	401
400	11/20	put	617	617
410	11/20	call	114	114
410	11/20	put	324	324
420	11/20	call	130	130
420	11/20	put	445	445
430	11/20	call	3,816	3,816
430	11/20	put	1,162	1,162
440	11/20	call	227	227
440	11/20	put	219	219
450	11/20	call	395	395
450	11/20	put	252	252
460	11/20	call	207	207
460	11/20	put	602	602
470	11/20	call	258	258
470	11/20	put	199	199
480	11/20	call	395	395
480	11/20	put	141	141
490	11/20	call	219	219
490	11/20	put	12	12
500	11/20	call	989	989
500	11/20	put	13	13
510	11/20	call	930	930
510	11/20	put	31	31
520	11/20	call	168	168
520	11/20	put	12	12
530	11/20	call	85	85
530	11/20	put	2	2
540	11/20	call	97	97
540	11/20	put	1	1
550	11/20	call	324	324
550	11/20	put	1	1
560	11/20	call	87	87
570	11/20	call	106	106
570	11/20	put	1	1
580	11/20	call	18	18
580	11/20	put	2	2
590	11/20	call	47	47
600	11/20	call	84	84
610	11/20	call	22	22
610	11/20	put	1	1
620	11/20	call	63	63
620	11/20	put	1	1
630	11/20	call	1	1
630	11/20	put	3	3
640	11/20	call	332	332
640	11/20	put	4	4
650	11/20	call	1	1
650	11/20	put	2	2

Expiration 2026-12-18

MPC open interest, settled 2026-10-21, expiration 2026-12-18, strikes 240 to 680

Strike	Expiry	Type	Prior OI	Settled OI
240	12/18	call	114	114
240	12/18	put	44	44
250	12/18	call	200	200
250	12/18	put	48	48
260	12/18	call	257	257
260	12/18	put	130	130
270	12/18	call	442	442
270	12/18	put	113	113
280	12/18	call	166	166
280	12/18	put	125	125
290	12/18	call	270	270
290	12/18	put	296	296
300	12/18	call	128	128
300	12/18	put	733	733
310	12/18	call	186	186
310	12/18	put	461	461
320	12/18	call	106	106
320	12/18	put	227	227
330	12/18	call	211	211
330	12/18	put	787	787
340	12/18	call	74	74
340	12/18	put	207	207
350	12/18	call	107	107
350	12/18	put	180	180
360	12/18	call	70	70
360	12/18	put	105	105
370	12/18	call	347	347
370	12/18	put	434	434
380	12/18	call	253	253
380	12/18	put	583	583
390	12/18	call	221	221
390	12/18	put	272	272
400	12/18	call	791	791
400	12/18	put	951	951
410	12/18	call	171	171
410	12/18	put	352	352
420	12/18	call	254	254
420	12/18	put	515	515
430	12/18	call	306	306
430	12/18	put	112	112
440	12/18	call	145	145
440	12/18	put	404	404
450	12/18	call	327	327
450	12/18	put	226	226
460	12/18	call	114	114
460	12/18	put	133	133
470	12/18	call	201	201
470	12/18	put	179	179
480	12/18	call	132	132
480	12/18	put	84	84
490	12/18	call	136	136
490	12/18	put	77	77
500	12/18	call	263	263
500	12/18	put	78	78
510	12/18	call	92	92
510	12/18	put	1	1
520	12/18	call	37	37
520	12/18	put	5	5
530	12/18	call	32	32
530	12/18	put	10	10
540	12/18	call	61	61
540	12/18	put	8	8
550	12/18	call	5	5
560	12/18	call	95	95
560	12/18	put	1	1
580	12/18	call	566	566
580	12/18	put	1	1
590	12/18	call	1	1
600	12/18	call	54	54
600	12/18	put	2	2
610	12/18	call	2	2
620	12/18	call	16	16
620	12/18	put	1	1
640	12/18	call	15	15
680	12/18	call	2	2

Expiration 2027-01-15

MPC open interest, settled 2026-10-21, expiration 2027-01-15, strikes 210 to 700

Strike	Expiry	Type	Prior OI	Settled OI
210	01/15	call	119	119
210	01/15	put	87	87
220	01/15	call	502	502
220	01/15	put	150	150
230	01/15	call	95	95
230	01/15	put	163	163
240	01/15	call	922	922
240	01/15	put	232	232
250	01/15	call	222	222
250	01/15	put	673	673
260	01/15	call	415	415
260	01/15	put	251	251
270	01/15	call	268	268
270	01/15	put	120	120
280	01/15	call	145	145
280	01/15	put	181	181
290	01/15	call	195	195
290	01/15	put	165	165
300	01/15	call	681	681
300	01/15	put	78	78
310	01/15	call	205	205
310	01/15	put	84	84
320	01/15	call	226	226
320	01/15	put	115	115
330	01/15	call	744	744
330	01/15	put	263	263
340	01/15	call	381	381
340	01/15	put	55	55
350	01/15	call	131	131
350	01/15	put	3,200	3,200
360	01/15	call	161	161
360	01/15	put	281	281
370	01/15	call	115	115
370	01/15	put	125	125
380	01/15	call	489	489
380	01/15	put	2,935	2,935
390	01/15	call	105	105
390	01/15	put	213	213
400	01/15	call	393	393
400	01/15	put	294	294
410	01/15	call	560	560
410	01/15	put	37	37
420	01/15	call	353	353
420	01/15	put	214	214
430	01/15	call	156	156
430	01/15	put	68	68
440	01/15	call	93	93
440	01/15	put	788	788
450	01/15	call	513	513
450	01/15	put	44	44
460	01/15	call	228	228
460	01/15	put	122	122
470	01/15	call	212	212
470	01/15	put	329	329
480	01/15	call	155	155
480	01/15	put	95	95
490	01/15	call	175	175
490	01/15	put	40	40
500	01/15	call	228	228
500	01/15	put	58	58
510	01/15	call	86	86
520	01/15	call	214	214
520	01/15	put	4	4
530	01/15	call	95	95
530	01/15	put	1	1
540	01/15	call	215	215
540	01/15	put	2	2
560	01/15	call	62	62
580	01/15	call	218	218
580	01/15	put	1	1
600	01/15	call	213	213
620	01/15	call	68	68
640	01/15	call	60	60
640	01/15	put	3	3
700	01/15	call	25	25

Expiration 2027-03-19

MPC open interest, settled 2026-10-21, expiration 2027-03-19, strikes 210 to 720

Strike	Expiry	Type	Prior OI	Settled OI
210	03/19	call	63	63
210	03/19	put	33	33
220	03/19	call	38	38
220	03/19	put	55	55
230	03/19	call	260	260
230	03/19	put	39	39
240	03/19	call	249	249
240	03/19	put	21	21
250	03/19	call	57	57
250	03/19	put	109	109
260	03/19	call	331	331
260	03/19	put	42	42
270	03/19	call	15	15
270	03/19	put	56	56
280	03/19	call	119	119
280	03/19	put	337	337
290	03/19	call	67	67
290	03/19	put	297	297
300	03/19	call	42	42
300	03/19	put	311	311
310	03/19	call	49	49
310	03/19	put	339	339
320	03/19	call	30	30
320	03/19	put	32	32
330	03/19	call	23	23
330	03/19	put	23	23
340	03/19	call	50	50
340	03/19	put	104	104
350	03/19	call	99	99
350	03/19	put	34	34
360	03/19	call	66	66
360	03/19	put	66	66
370	03/19	call	106	106
370	03/19	put	51	51
380	03/19	call	369	369
380	03/19	put	54	54
390	03/19	call	40	40
390	03/19	put	40	40
400	03/19	call	101	101
400	03/19	put	49	49
410	03/19	call	33	33
410	03/19	put	44	44
420	03/19	call	302	302
420	03/19	put	544	544
430	03/19	call	100	100
430	03/19	put	75	75
440	03/19	call	127	127
440	03/19	put	101	101
450	03/19	call	200	200
450	03/19	put	132	132
460	03/19	call	49	49
460	03/19	put	8	8
470	03/19	call	61	61
470	03/19	put	68	68
480	03/19	call	62	62
480	03/19	put	9	9
490	03/19	call	62	62
490	03/19	put	49	49
500	03/19	call	142	142
500	03/19	put	16	16
520	03/19	call	240	240
540	03/19	call	40	40
540	03/19	put	1	1
560	03/19	call	158	158
560	03/19	put	2	2
580	03/19	call	299	299
580	03/19	put	3	3
600	03/19	call	173	173
620	03/19	call	48	48
640	03/19	call	183	183
660	03/19	call	2	2
700	03/19	call	11	11
720	03/19	put	1	1

Expiration 2027-04-16

MPC open interest, settled 2026-10-21, expiration 2027-04-16, strikes 200 to 700

Strike	Expiry	Type	Prior OI	Settled OI
200	04/16	call	2	2
210	04/16	call	3	3
220	04/16	put	6	6
230	04/16	call	2	2
230	04/16	put	4	4
240	04/16	call	2	2
240	04/16	put	1	1
250	04/16	call	1	1
250	04/16	put	3	3
260	04/16	call	3	3
260	04/16	put	1	1
280	04/16	call	1	1
280	04/16	put	126	126
290	04/16	call	1	1
290	04/16	put	4	4
300	04/16	call	1	1
300	04/16	put	12	12
310	04/16	call	38	38
310	04/16	put	1	1
320	04/16	call	5	5
320	04/16	put	3	3
330	04/16	call	26	26
330	04/16	put	7	7
340	04/16	call	3	3
340	04/16	put	11	11
350	04/16	call	24	24
350	04/16	put	44	44
360	04/16	call	163	163
360	04/16	put	1	1
370	04/16	call	5	5
370	04/16	put	17	17
380	04/16	call	9	9
380	04/16	put	60	60
390	04/16	call	4	4
390	04/16	put	18	18
400	04/16	call	20	20
400	04/16	put	14	14
410	04/16	call	10	10
410	04/16	put	11	11
420	04/16	call	3	3
420	04/16	put	6	6
430	04/16	call	8	8
430	04/16	put	1	1
440	04/16	call	52	52
440	04/16	put	52	52
450	04/16	call	620	620
450	04/16	put	14	14
460	04/16	call	22	22
470	04/16	call	28	28
470	04/16	put	5	5
480	04/16	call	129	129
480	04/16	put	17	17
490	04/16	call	32	32
490	04/16	put	6	6
500	04/16	call	76	76
500	04/16	put	20	20
520	04/16	call	112	112
520	04/16	put	4	4
540	04/16	call	9	9
560	04/16	call	34	34
560	04/16	put	1	1
580	04/16	call	43	43
580	04/16	put	14	14
600	04/16	call	38	38
620	04/16	call	53	53
640	04/16	call	28	28
660	04/16	call	26	26
680	04/16	call	2	2
700	04/16	call	7	7

Expiration 2027-06-17

MPC open interest, settled 2026-10-21, expiration 2027-06-17, strikes 200 to 700

Strike	Expiry	Type	Prior OI	Settled OI
200	06/17	call	10	10
200	06/17	put	147	147
210	06/17	call	3	3
210	06/17	put	19	19
220	06/17	call	28	28
220	06/17	put	17	17
230	06/17	call	16	16
230	06/17	put	69	69
240	06/17	call	126	126
240	06/17	put	16	16
250	06/17	call	47	47
250	06/17	put	193	193
260	06/17	call	62	62
260	06/17	put	27	27
270	06/17	call	32	32
270	06/17	put	1,026	1,026
280	06/17	call	28	28
280	06/17	put	27	27
290	06/17	call	89	89
290	06/17	put	46	46
300	06/17	call	253	253
300	06/17	put	1,654	1,654
310	06/17	call	62	62
310	06/17	put	805	805
320	06/17	call	374	374
320	06/17	put	175	175
330	06/17	call	49	49
330	06/17	put	60	60
340	06/17	call	27	27
340	06/17	put	73	73
350	06/17	call	65	65
350	06/17	put	102	102
360	06/17	call	75	75
360	06/17	put	16	16
370	06/17	call	54	54
370	06/17	put	26	26
380	06/17	call	108	108
380	06/17	put	50	50
390	06/17	call	139	139
390	06/17	put	33	33
400	06/17	call	123	123
400	06/17	put	66	66
410	06/17	call	124	124
410	06/17	put	50	50
420	06/17	call	18	18
420	06/17	put	550	550
430	06/17	call	40	40
430	06/17	put	192	192
440	06/17	call	31	31
440	06/17	put	149	149
450	06/17	call	175	175
450	06/17	put	36	36
460	06/17	call	31	31
460	06/17	put	23	23
470	06/17	call	64	64
470	06/17	put	4	4
480	06/17	call	18	18
490	06/17	call	7	7
500	06/17	call	37	37
500	06/17	put	46	46
520	06/17	call	16	16
520	06/17	put	15	15
540	06/17	call	295	295
540	06/17	put	30	30
560	06/17	call	53	53
580	06/17	call	11	11
580	06/17	put	1	1
600	06/17	call	62	62
600	06/17	put	2	2
620	06/17	call	15	15
640	06/17	call	11	11
680	06/17	call	12	12
700	06/17	call	6	6

Later expirations (2027-09-17, 2028-01-21, 2028-06-16, 2029-01-19) and all other strikes are in the Markdown table.

Markdown table | Open interest changes across symbols

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