MS Options Open Interest by Strike, Oct 21 Settlement

MS 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, 990 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 149 to 224. Source: SquawkFlow's archive of settled open interest. Counts are contracts, not trades; they do not identify which side opened or closed a position.

MS: largest changes in the full book, settled 2026-10-21 vs 2026-10-20

Strike	Expiry	Type	Prior OI	Settled OI	Change
195	10/23	call	16,660	10,282	-6,378
185	11/20	call	957	6,273	+5,316
200	12/18	call	3,618	8,270	+4,652
197.5	11/20	call	52	1,078	+1,026
205	11/20	call	30	1,038	+1,008
210	01/15	call	1,832	2,324	+492
190	10/23	call	1,104	1,392	+288
190	11/20	call	1,578	1,787	+209
187.5	10/30	call	286	474	+188
190	12/18	call	1,300	1,446	+146
170	09/17	put	1,023	1,164	+141
185	11/20	put	2,734	2,872	+138
182.5	11/20	put	126	262	+136
195	12/18	call	520	651	+131
125	10/23	put	60	190	+130

Expiration 2026-10-23

MS open interest, settled 2026-10-21, expiration 2026-10-23, strikes 125 to 250

Strike	Expiry	Type	Prior OI	Settled OI	Change
125	10/23	call	14	14	0
125	10/23	put	60	190	+130
130	10/23	call	1	1	0
135	10/23	call	1	1	0
135	10/23	put	3	2	-1
140	10/23	put	3	3	0
145	10/23	call	2	2	0
150	10/23	call	2	2	0
150	10/23	put	75	75	0
155	10/23	call	2	2	0
155	10/23	put	81	84	+3
157.5	10/23	call	2	2	0
157.5	10/23	put	18	23	+5
160	10/23	call	2	2	0
160	10/23	put	28	29	+1
162.5	10/23	call	10	10	0
162.5	10/23	put	680	725	+45
165	10/23	call	1	1	0
165	10/23	put	88	115	+27
167.5	10/23	call	2	2	0
167.5	10/23	put	295	295	0
170	10/23	call	11	10	-1
170	10/23	put	225	225	0
172.5	10/23	call	21	21	0
172.5	10/23	put	6,428	6,422	-6
175	10/23	call	39	37	-2
175	10/23	put	382	371	-11
177.5	10/23	call	63	62	-1
177.5	10/23	put	724	726	+2
180	10/23	call	421	412	-9
180	10/23	put	533	510	-23
182.5	10/23	call	930	900	-30
182.5	10/23	put	408	446	+38
185	10/23	call	829	758	-71
185	10/23	put	320	282	-38
187.5	10/23	call	613	728	+115
187.5	10/23	put	205	202	-3
190	10/23	call	1,104	1,392	+288
190	10/23	put	68	65	-3
192.5	10/23	call	331	336	+5
195	10/23	call	16,660	10,282	-6,378
195	10/23	put	13	13	0
197.5	10/23	call	335	360	+25
200	10/23	call	430	477	+47
200	10/23	put	2	2	0
202.5	10/23	call	133	133	0
205	10/23	call	1,041	1,041	0
207.5	10/23	call	35	35	0
210	10/23	call	187	187	0
210	10/23	put	1	1	0
212.5	10/23	call	18	18	0
215	10/23	call	269	269	0
217.5	10/23	call	11	11	0
220	10/23	call	106	106	0
222.5	10/23	call	91	92	+1
225	10/23	call	130	130	0
230	10/23	call	41	41	0
235	10/23	call	29	29	0
240	10/23	call	30	30	0
245	10/23	call	15	15	0
250	10/23	call	107	107	0

Expiration 2026-10-30

MS open interest, settled 2026-10-21, expiration 2026-10-30, strikes 115 to 255

Strike	Expiry	Type	Prior OI	Settled OI	Change
115	10/30	call	1	1	0
115	10/30	put	202	202	0
120	10/30	put	21	21	0
125	10/30	put	112	112	0
130	10/30	put	124	125	+1
135	10/30	put	11	13	+2
140	10/30	put	14	15	+1
145	10/30	put	10	10	0
150	10/30	call	1	1	0
150	10/30	put	4	4	0
155	10/30	put	50	50	0
157.5	10/30	call	3	3	0
157.5	10/30	put	6	6	0
160	10/30	call	1	3	+2
160	10/30	put	64	64	0
162.5	10/30	put	3	6	+3
165	10/30	call	0	1	+1
165	10/30	put	78	93	+15
167.5	10/30	put	13	14	+1
170	10/30	call	4	15	+11
170	10/30	put	1,576	1,567	-9
172.5	10/30	call	1	1	0
172.5	10/30	put	876	852	-24
175	10/30	call	8	10	+2
175	10/30	put	1,291	1,289	-2
177.5	10/30	call	12	12	0
177.5	10/30	put	233	251	+18
180	10/30	call	152	170	+18
180	10/30	put	1,015	1,028	+13
182.5	10/30	call	152	152	0
182.5	10/30	put	90	103	+13
185	10/30	call	316	320	+4
185	10/30	put	701	709	+8
187.5	10/30	call	286	474	+188
187.5	10/30	put	34	33	-1
190	10/30	call	404	464	+60
190	10/30	put	742	731	-11
192.5	10/30	call	141	188	+47
192.5	10/30	put	14	14	0
195	10/30	call	827	830	+3
195	10/30	put	75	75	0
197.5	10/30	call	16	33	+17
197.5	10/30	put	10	10	0
200	10/30	call	733	662	-71
200	10/30	put	31	30	-1
202.5	10/30	call	44	44	0
202.5	10/30	put	1	1	0
205	10/30	call	335	335	0
205	10/30	put	55	55	0
207.5	10/30	call	43	43	0
210	10/30	call	1,103	1,103	0
210	10/30	put	8	8	0
215	10/30	call	101	101	0
215	10/30	put	1	1	0
220	10/30	call	83	81	-2
220	10/30	put	1	1	0
225	10/30	call	41	41	0
230	10/30	call	41	41	0
235	10/30	call	12	12	0
240	10/30	call	13	13	0
245	10/30	call	8	8	0
250	10/30	call	15	15	0
255	10/30	call	6	6	0

Expiration 2026-11-06

MS open interest, settled 2026-10-21, expiration 2026-11-06, strikes 110 to 270

Strike	Expiry	Type	Prior OI	Settled OI	Change
110	11/06	put	1	1	0
120	11/06	put	3	3	0
125	11/06	put	3	3	0
130	11/06	put	2	2	0
140	11/06	put	7	7	0
145	11/06	put	2	2	0
150	11/06	call	1	1	0
150	11/06	put	25	25	0
155	11/06	put	17	17	0
160	11/06	call	10	10	0
160	11/06	put	44	47	+3
162.5	11/06	put	6	6	0
165	11/06	put	188	198	+10
167.5	11/06	call	1	1	0
167.5	11/06	put	23	22	-1
170	11/06	call	59	58	-1
170	11/06	put	450	466	+16
172.5	11/06	call	81	81	0
172.5	11/06	put	28	27	-1
175	11/06	call	36	39	+3
175	11/06	put	105	107	+2
177.5	11/06	call	1	1	0
177.5	11/06	put	34	35	+1
180	11/06	call	74	75	+1
180	11/06	put	228	229	+1
182.5	11/06	call	3	3	0
182.5	11/06	put	2	4	+2
185	11/06	call	172	168	-4
185	11/06	put	135	135	0
187.5	11/06	call	32	38	+6
187.5	11/06	put	9	9	0
190	11/06	call	2,079	2,156	+77
190	11/06	put	28	27	-1
192.5	11/06	call	11	39	+28
195	11/06	call	541	634	+93
195	11/06	put	8	8	0
197.5	11/06	call	3	4	+1
200	11/06	call	211	156	-55
200	11/06	put	32	31	-1
202.5	11/06	call	1	8	+7
202.5	11/06	put	1	1	0
205	11/06	call	141	141	0
205	11/06	put	4	4	0
210	11/06	call	175	175	0
210	11/06	put	1	1	0
215	11/06	call	99	99	0
220	11/06	call	274	274	0
225	11/06	call	31	31	0
230	11/06	call	7	7	0
235	11/06	call	6	6	0
240	11/06	call	7	7	0
245	11/06	call	3	3	0
250	11/06	call	7	7	0
255	11/06	call	5	5	0
260	11/06	call	3	3	0
265	11/06	call	4	4	0
270	11/06	call	1	1	0

Expiration 2026-11-13

MS open interest, settled 2026-10-21, expiration 2026-11-13, strikes 140 to 230

Strike	Expiry	Type	Prior OI	Settled OI	Change
140	11/13	put	1	1	0
145	11/13	put	2	2	0
150	11/13	put	11	11	0
155	11/13	put	31	31	0
160	11/13	put	41	40	-1
165	11/13	call	2	2	0
165	11/13	put	262	260	-2
170	11/13	call	7	7	0
170	11/13	put	133	135	+2
175	11/13	call	10	10	0
175	11/13	put	82	87	+5
180	11/13	call	67	150	+83
180	11/13	put	430	434	+4
185	11/13	call	28	34	+6
185	11/13	put	439	487	+48
190	11/13	call	81	159	+78
190	11/13	put	20	20	0
195	11/13	call	57	107	+50
195	11/13	put	2	2	0
200	11/13	call	116	114	-2
200	11/13	put	1	2	+1
205	11/13	call	86	86	0
205	11/13	put	4	4	0
210	11/13	call	16	15	-1
215	11/13	call	22	22	0
220	11/13	call	23	23	0
230	11/13	call	4	4	0

Expiration 2026-11-20

MS open interest, settled 2026-10-21, expiration 2026-11-20, strikes 100 to 270

Strike	Expiry	Type	Prior OI	Settled OI	Change
100	11/20	put	49	49	0
105	11/20	put	117	117	0
110	11/20	call	19	19	0
110	11/20	put	41	41	0
115	11/20	call	11	11	0
115	11/20	put	55	55	0
120	11/20	put	61	61	0
125	11/20	call	3	3	0
125	11/20	put	74	74	0
130	11/20	call	3	3	0
130	11/20	put	10	10	0
135	11/20	call	40	40	0
135	11/20	put	216	216	0
140	11/20	call	17	17	0
140	11/20	put	264	264	0
145	11/20	call	47	47	0
145	11/20	put	87	89	+2
150	11/20	call	12	12	0
150	11/20	put	331	336	+5
155	11/20	call	18	18	0
155	11/20	put	844	827	-17
160	11/20	call	171	171	0
160	11/20	put	4,835	4,816	-19
162.5	11/20	put	15	17	+2
165	11/20	call	116	116	0
165	11/20	put	3,366	3,360	-6
167.5	11/20	call	30	30	0
167.5	11/20	put	300	303	+3
170	11/20	call	66	62	-4
170	11/20	put	3,870	3,852	-18
172.5	11/20	put	3	3	0
175	11/20	call	152	151	-1
175	11/20	put	1,553	1,554	+1
177.5	11/20	call	5	5	0
177.5	11/20	put	43	46	+3
180	11/20	call	1,546	1,533	-13
180	11/20	put	2,418	2,435	+17
182.5	11/20	call	377	384	+7
182.5	11/20	put	126	262	+136
185	11/20	call	957	6,273	+5,316
185	11/20	put	2,734	2,872	+138
187.5	11/20	call	81	99	+18
187.5	11/20	put	1	6	+5
190	11/20	call	1,578	1,787	+209
190	11/20	put	1,820	1,816	-4
192.5	11/20	call	522	523	+1
192.5	11/20	put	2	2	0
195	11/20	call	4,325	4,392	+67
195	11/20	put	959	938	-21
197.5	11/20	call	52	1,078	+1,026
200	11/20	call	5,790	5,712	-78
200	11/20	put	1,248	1,248	0
202.5	11/20	call	155	162	+7
205	11/20	call	30	1,038	+1,008
207.5	11/20	call	0	2	+2
210	11/20	call	2,260	2,299	+39
210	11/20	put	782	780	-2
215	11/20	call	2	2	0
220	11/20	call	2,700	2,698	-2
220	11/20	put	661	661	0
230	11/20	call	1,315	1,290	-25
230	11/20	put	274	271	-3
240	11/20	call	1,325	1,325	0
240	11/20	put	18	18	0
250	11/20	call	782	782	0
250	11/20	put	1	1	0
260	11/20	call	357	356	-1
270	11/20	call	433	427	-6

Expiration 2026-11-27

MS open interest, settled 2026-10-21, expiration 2026-11-27, strikes 135 to 220

Strike	Expiry	Type	Prior OI	Settled OI	Change
135	11/27	put	1	1	0
140	11/27	put	3	3	0
145	11/27	put	1	1	0
150	11/27	put	3	3	0
155	11/27	put	14	14	0
160	11/27	call	1	1	0
160	11/27	put	27	26	-1
165	11/27	put	53	59	+6
170	11/27	put	45	44	-1
175	11/27	call	3	3	0
175	11/27	put	12	14	+2
180	11/27	call	37	37	0
180	11/27	put	25	25	0
185	11/27	call	116	125	+9
185	11/27	put	8	64	+56
190	11/27	call	61	61	0
190	11/27	put	86	86	0
195	11/27	call	20	27	+7
195	11/27	put	1	1	0
200	11/27	call	206	208	+2
200	11/27	put	1	1	0
205	11/27	call	32	32	0
205	11/27	put	3	3	0
210	11/27	call	124	134	+10
210	11/27	put	2	2	0
215	11/27	call	25	25	0
215	11/27	put	1	1	0
220	11/27	call	1	1	0

Later expirations (2026-12-18, 2027-01-15, 2027-03-19, 2027-04-16, 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.

Markdown table | Open interest changes across symbols

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