ILMN Options Open Interest by Strike, Oct 21 Settlement

ILMN 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 6 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, 458 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 228 to 342. Source: SquawkFlow's archive of settled open interest. Counts are contracts, not trades; they do not identify which side opened or closed a position.

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

Strike	Expiry	Type	Prior OI	Settled OI	Change
280	11/20	call	272	311	+39
260	11/20	call	76	110	+34
240	11/20	put	988	1,016	+28
290	11/20	call	878	897	+19
250	11/20	put	103	121	+18
170	11/20	put	6	21	+15
300	11/20	call	109	121	+12
180	11/20	put	19	29	+10
195	11/20	put	26	34	+8
200	11/20	put	88	96	+8
220	11/20	put	98	106	+8
340	11/20	call	168	174	+6
210	11/20	put	103	108	+5
250	11/20	call	47	50	+3
260	11/20	put	595	598	+3

Expiration 2026-11-20

ILMN open interest, settled 2026-10-21, expiration 2026-11-20, strikes 145 to 440

Strike	Expiry	Type	Prior OI	Settled OI	Change
145	11/20	call	1	1	0
150	11/20	call	4	4	0
150	11/20	put	5	5	0
155	11/20	call	1	1	0
155	11/20	put	5	5	0
160	11/20	call	5	5	0
160	11/20	put	4	4	0
165	11/20	call	1	1	0
165	11/20	put	6	6	0
170	11/20	call	1	1	0
170	11/20	put	6	21	+15
175	11/20	call	1	1	0
175	11/20	put	20	20	0
180	11/20	call	2	2	0
180	11/20	put	19	29	+10
185	11/20	call	10	10	0
185	11/20	put	10	10	0
190	11/20	call	8	8	0
190	11/20	put	42	42	0
195	11/20	call	7	7	0
195	11/20	put	26	34	+8
200	11/20	call	38	38	0
200	11/20	put	88	96	+8
210	11/20	call	38	38	0
210	11/20	put	103	108	+5
220	11/20	call	20	20	0
220	11/20	put	98	106	+8
230	11/20	call	10	10	0
230	11/20	put	344	344	0
240	11/20	call	36	36	0
240	11/20	put	988	1,016	+28
250	11/20	call	47	50	+3
250	11/20	put	103	121	+18
260	11/20	call	76	110	+34
260	11/20	put	595	598	+3
270	11/20	call	107	108	+1
270	11/20	put	113	113	0
280	11/20	call	272	311	+39
280	11/20	put	188	188	0
290	11/20	call	878	897	+19
290	11/20	put	308	308	0
300	11/20	call	109	121	+12
300	11/20	put	1,003	1,003	0
310	11/20	call	52	54	+2
310	11/20	put	3	3	0
320	11/20	call	79	79	0
320	11/20	put	3	3	0
330	11/20	call	120	122	+2
330	11/20	put	2	2	0
340	11/20	call	168	174	+6
350	11/20	call	99	101	+2
360	11/20	call	25	27	+2
360	11/20	put	1	1	0
370	11/20	call	0	2	+2
380	11/20	call	9	11	+2
380	11/20	put	1	1	0
390	11/20	call	36	39	+3
400	11/20	call	1	1	0
420	11/20	call	3	3	0
430	11/20	call	1	1	0
440	11/20	call	129	129	0

Expiration 2026-12-18

ILMN open interest, settled 2026-10-21, expiration 2026-12-18, strikes 120 to 440

Strike	Expiry	Type	Prior OI	Settled OI	Change
120	12/18	call	19	19	0
120	12/18	put	8	8	0
125	12/18	call	4	4	0
125	12/18	put	14	14	0
130	12/18	call	15	15	0
130	12/18	put	20	20	0
135	12/18	call	10	10	0
135	12/18	put	40	40	0
140	12/18	call	4	4	0
140	12/18	put	6	6	0
145	12/18	call	33	33	0
145	12/18	put	54	54	0
150	12/18	call	6	6	0
150	12/18	put	39	39	0
155	12/18	call	50	50	0
155	12/18	put	25	25	0
160	12/18	call	53	53	0
160	12/18	put	24	24	0
165	12/18	call	17	17	0
165	12/18	put	5	5	0
170	12/18	call	35	35	0
170	12/18	put	27	27	0
175	12/18	call	14	14	0
175	12/18	put	41	42	+1
180	12/18	call	28	28	0
180	12/18	put	15	15	0
185	12/18	call	116	116	0
185	12/18	put	12	12	0
190	12/18	call	132	132	0
190	12/18	put	61	60	-1
195	12/18	call	54	54	0
195	12/18	put	172	172	0
200	12/18	call	78	78	0
200	12/18	put	43	43	0
210	12/18	call	279	279	0
210	12/18	put	71	71	0
220	12/18	call	752	752	0
220	12/18	put	51	51	0
230	12/18	call	166	166	0
230	12/18	put	154	153	-1
240	12/18	call	203	203	0
240	12/18	put	30	30	0
250	12/18	call	127	127	0
250	12/18	put	45	45	0
260	12/18	call	72	71	-1
260	12/18	put	209	209	0
270	12/18	call	34	34	0
270	12/18	put	95	95	0
280	12/18	call	82	82	0
280	12/18	put	71	71	0
290	12/18	call	94	94	0
290	12/18	put	62	62	0
300	12/18	call	228	229	+1
300	12/18	put	13	12	-1
310	12/18	call	37	40	+3
320	12/18	call	167	167	0
330	12/18	call	63	64	+1
340	12/18	call	76	76	0
350	12/18	call	143	145	+2
360	12/18	call	5	5	0
370	12/18	call	3	4	+1
380	12/18	call	4	6	+2
400	12/18	call	3	3	0
410	12/18	call	4	4	0
420	12/18	put	1	1	0
430	12/18	call	23	23	0
430	12/18	put	2	2	0
440	12/18	call	1	1	0

Expiration 2027-01-15

ILMN open interest, settled 2026-10-21, expiration 2027-01-15, strikes 115 to 420

Strike	Expiry	Type	Prior OI	Settled OI	Change
115	01/15	call	18	18	0
115	01/15	put	128	128	0
120	01/15	call	17	17	0
120	01/15	put	89	89	0
125	01/15	call	41	41	0
125	01/15	put	48	48	0
130	01/15	call	196	196	0
130	01/15	put	99	99	0
135	01/15	call	170	170	0
135	01/15	put	74	74	0
140	01/15	call	73	73	0
140	01/15	put	74	74	0
145	01/15	call	46	46	0
145	01/15	put	30	30	0
150	01/15	call	530	530	0
150	01/15	put	53	53	0
155	01/15	call	89	89	0
155	01/15	put	19	19	0
160	01/15	call	84	84	0
160	01/15	put	14	14	0
165	01/15	call	39	39	0
165	01/15	put	36	36	0
170	01/15	call	619	619	0
170	01/15	put	186	186	0
175	01/15	call	48	48	0
175	01/15	put	40	42	+2
180	01/15	call	487	487	0
180	01/15	put	112	112	0
185	01/15	call	44	44	0
185	01/15	put	7	7	0
190	01/15	call	133	133	0
190	01/15	put	183	183	0
195	01/15	call	50	50	0
195	01/15	put	29	29	0
200	01/15	call	146	146	0
200	01/15	put	117	117	0
210	01/15	call	149	149	0
210	01/15	put	81	81	0
220	01/15	call	203	203	0
220	01/15	put	63	63	0
230	01/15	call	1,311	1,311	0
230	01/15	put	30	31	+1
240	01/15	call	119	119	0
240	01/15	put	37	37	0
250	01/15	call	61	60	-1
250	01/15	put	53	53	0
260	01/15	call	66	65	-1
260	01/15	put	26	26	0
270	01/15	call	83	84	+1
270	01/15	put	8	8	0
280	01/15	call	35	35	0
280	01/15	put	54	54	0
290	01/15	call	156	155	-1
290	01/15	put	66	66	0
300	01/15	call	173	173	0
300	01/15	put	13	13	0
310	01/15	call	9	9	0
310	01/15	put	2	2	0
320	01/15	call	20	20	0
330	01/15	call	99	97	-2
340	01/15	call	99	99	0
350	01/15	call	219	219	0
360	01/15	call	37	36	-1
360	01/15	put	1	1	0
370	01/15	call	146	146	0
380	01/15	call	15	15	0
390	01/15	call	3	3	0
400	01/15	call	17	17	0
410	01/15	call	1	1	0
420	01/15	call	1	1	0

Expiration 2027-03-19

ILMN open interest, settled 2026-10-21, expiration 2027-03-19, strikes 115 to 420

Strike	Expiry	Type	Prior OI	Settled OI	Change
115	03/19	call	1	1	0
115	03/19	put	1	1	0
120	03/19	put	2	2	0
125	03/19	put	11	11	0
130	03/19	call	15	15	0
135	03/19	call	6	6	0
135	03/19	put	8	9	+1
140	03/19	put	2	4	+2
145	03/19	call	1	1	0
145	03/19	put	10	10	0
150	03/19	call	2	2	0
150	03/19	put	20	20	0
155	03/19	put	2	4	+2
160	03/19	call	3	3	0
160	03/19	put	2	3	+1
165	03/19	call	1	1	0
165	03/19	put	6	6	0
170	03/19	call	2	2	0
170	03/19	put	8	8	0
175	03/19	call	4	4	0
175	03/19	put	16	16	0
180	03/19	call	2	2	0
180	03/19	put	53	53	0
185	03/19	call	1	1	0
185	03/19	put	24	24	0
190	03/19	call	3	3	0
190	03/19	put	29	29	0
195	03/19	call	2	2	0
195	03/19	put	20	20	0
200	03/19	call	9	9	0
200	03/19	put	45	45	0
210	03/19	call	6	6	0
210	03/19	put	22	22	0
220	03/19	call	26	26	0
220	03/19	put	1	1	0
230	03/19	call	39	39	0
230	03/19	put	4	4	0
240	03/19	call	43	43	0
240	03/19	put	14	14	0
250	03/19	call	27	27	0
250	03/19	put	2	2	0
260	03/19	call	26	26	0
260	03/19	put	24	24	0
270	03/19	call	22	22	0
270	03/19	put	4	4	0
280	03/19	call	8	8	0
280	03/19	put	6	6	0
290	03/19	call	9	9	0
290	03/19	put	2	2	0
300	03/19	call	105	105	0
300	03/19	put	5	5	0
310	03/19	call	3	3	0
310	03/19	put	1	1	0
320	03/19	call	7	7	0
330	03/19	call	3	3	0
340	03/19	call	8	8	0
350	03/19	call	91	91	0
360	03/19	call	4	4	0
370	03/19	call	1	1	0
380	03/19	call	7	7	0
390	03/19	call	2	2	0
400	03/19	call	32	32	0
410	03/19	call	3	3	0
420	03/19	call	0	1	+1

Expiration 2027-06-17

ILMN open interest, settled 2026-10-21, expiration 2027-06-17, strikes 100 to 400

Strike	Expiry	Type	Prior OI	Settled OI	Change
100	06/17	put	25	25	0
105	06/17	put	1	1	0
110	06/17	put	4	4	0
115	06/17	put	1	1	0
120	06/17	call	5	5	0
120	06/17	put	3	3	0
125	06/17	put	1	1	0
130	06/17	put	3	3	0
135	06/17	put	5	5	0
140	06/17	call	3	3	0
140	06/17	put	1	1	0
145	06/17	put	5	5	0
150	06/17	call	4	4	0
150	06/17	put	3	3	0
155	06/17	call	1	1	0
155	06/17	put	4	4	0
160	06/17	call	50	50	0
160	06/17	put	48	48	0
165	06/17	call	1	1	0
165	06/17	put	12	12	0
170	06/17	call	4	4	0
170	06/17	put	11	11	0
175	06/17	call	6	6	0
175	06/17	put	8	8	0
180	06/17	call	20	20	0
180	06/17	put	7	7	0
185	06/17	call	3	3	0
185	06/17	put	20	20	0
190	06/17	call	1	1	0
190	06/17	put	9	9	0
195	06/17	call	1	1	0
195	06/17	put	12	12	0
200	06/17	call	8	8	0
200	06/17	put	450	450	0
210	06/17	call	263	263	0
210	06/17	put	10	10	0
220	06/17	call	75	75	0
220	06/17	put	21	21	0
230	06/17	call	36	36	0
230	06/17	put	1	1	0
240	06/17	call	27	27	0
240	06/17	put	2	2	0
250	06/17	call	14	14	0
250	06/17	put	10	10	0
260	06/17	call	48	48	0
260	06/17	put	64	64	0
270	06/17	call	10	10	0
270	06/17	put	32	32	0
280	06/17	call	10	10	0
280	06/17	put	1	1	0
290	06/17	call	71	72	+1
300	06/17	call	22	22	0
300	06/17	put	3	3	0
310	06/17	call	112	114	+2
320	06/17	call	2	2	0
330	06/17	call	4	4	0
340	06/17	call	2	2	0
350	06/17	call	19	19	0
360	06/17	call	11	11	0
380	06/17	call	11	11	0
390	06/17	call	1	1	0
400	06/17	call	53	53	0

Expiration 2028-01-21

ILMN open interest, settled 2026-10-21, expiration 2028-01-21, strikes 105 to 420

Strike	Expiry	Type	Prior OI	Settled OI
105	01/21	call	1	1
105	01/21	put	51	51
110	01/21	call	1	1
110	01/21	put	30	30
115	01/21	call	36	36
115	01/21	put	17	17
120	01/21	call	39	39
120	01/21	put	17	17
125	01/21	call	14	14
125	01/21	put	27	27
130	01/21	call	28	28
130	01/21	put	12	12
135	01/21	call	21	21
135	01/21	put	2	2
140	01/21	call	61	61
145	01/21	call	22	22
150	01/21	call	174	174
150	01/21	put	13	13
155	01/21	call	9	9
160	01/21	call	72	72
165	01/21	call	7	7
165	01/21	put	21	21
170	01/21	call	12	12
170	01/21	put	3	3
175	01/21	call	35	35
175	01/21	put	9	9
180	01/21	call	38	38
180	01/21	put	12	12
185	01/21	call	19	19
185	01/21	put	2	2
190	01/21	call	30	30
190	01/21	put	2	2
195	01/21	call	28	28
195	01/21	put	1	1
200	01/21	call	60	60
200	01/21	put	17	17
210	01/21	call	23	23
210	01/21	put	21	21
220	01/21	call	26	26
220	01/21	put	6	6
230	01/21	call	47	47
230	01/21	put	3	3
240	01/21	call	9	9
240	01/21	put	11	11
250	01/21	call	31	31
250	01/21	put	6	6
260	01/21	call	8	8
270	01/21	call	13	13
280	01/21	call	6	6
290	01/21	call	24	24
300	01/21	call	31	31
300	01/21	put	6	6
310	01/21	call	4	4
320	01/21	call	3	3
330	01/21	put	2	2
340	01/21	call	23	23
340	01/21	put	3	3
350	01/21	call	43	43
360	01/21	call	4	4
380	01/21	call	1	1
400	01/21	call	25	25
410	01/21	call	5	5
420	01/21	call	35	35

Markdown table | Open interest changes across symbols

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