SMR Options Open Interest by Strike, Oct 21 Settlement

SMR 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 12 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, 519 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 4 to 7. Source: SquawkFlow's archive of settled open interest. Counts are contracts, not trades; they do not identify which side opened or closed a position.

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

Strike	Expiry	Type	Prior OI	Settled OI	Change
6	10/23	call	4,077	5,442	+1,365
10	01/15	call	15,564	16,384	+820
6	11/06	call	3,412	4,047	+635
8	12/18	call	386	750	+364
6.5	10/30	call	1,098	1,409	+311
5	01/21	call	2,511	2,812	+301
6	01/15	call	5,295	5,582	+287
7	10/23	put	440	170	-270
5.5	11/20	put	112	314	+202
20	01/15	call	28,783	28,588	-195
11	01/15	call	5,198	5,383	+185
6	11/13	call	248	413	+165
5.5	10/23	call	333	493	+160
6	11/20	call	940	1,099	+159
11	12/18	call	97	247	+150

Expiration 2026-10-23

SMR open interest, settled 2026-10-21, expiration 2026-10-23, strikes 1 to 22

Strike	Expiry	Type	Prior OI	Settled OI	Change
1	10/23	call	15	23	+8
1	10/23	put	1	2	+1
2	10/23	call	10	13	+3
2	10/23	put	3	2	-1
3	10/23	call	21	18	-3
3	10/23	put	7	7	0
3.5	10/23	call	28	26	-2
3.5	10/23	put	8	8	0
4	10/23	call	35	47	+12
4	10/23	put	18	19	+1
4.5	10/23	call	17	19	+2
4.5	10/23	put	4	6	+2
5	10/23	call	58	64	+6
5	10/23	put	435	435	0
5.5	10/23	call	333	493	+160
5.5	10/23	put	981	963	-18
6	10/23	call	4,077	5,442	+1,365
6	10/23	put	594	611	+17
6.5	10/23	call	3,770	3,731	-39
6.5	10/23	put	927	851	-76
7	10/23	call	1,544	1,548	+4
7	10/23	put	440	170	-270
7.5	10/23	call	768	768	0
7.5	10/23	put	575	574	-1
8	10/23	call	780	780	0
8	10/23	put	244	242	-2
8.5	10/23	call	979	979	0
8.5	10/23	put	66	67	+1
9	10/23	call	2,446	2,446	0
9	10/23	put	14	15	+1
9.5	10/23	call	1,188	1,186	-2
9.5	10/23	put	24	24	0
10	10/23	call	668	668	0
10	10/23	put	12	13	+1
10.5	10/23	call	352	352	0
10.5	10/23	put	6	8	+2
11	10/23	call	6,116	6,116	0
11	10/23	put	8	8	0
11.5	10/23	call	493	493	0
11.5	10/23	put	2	4	+2
12	10/23	call	365	364	-1
12	10/23	put	0	1	+1
12.5	10/23	call	126	126	0
12.5	10/23	put	0	1	+1
13	10/23	call	59	59	0
13.5	10/23	call	18	18	0
13.5	10/23	put	0	1	+1
14	10/23	call	47	49	+2
14	10/23	put	0	4	+4
14.5	10/23	call	5	5	0
14.5	10/23	put	0	1	+1
15	10/23	call	39	40	+1
15	10/23	put	2	0	-2
16	10/23	call	51	51	0
16	10/23	put	0	2	+2
17	10/23	call	238	238	0
18	10/23	call	63	63	0
18	10/23	put	0	1	+1
19	10/23	call	9	9	0
19	10/23	put	0	2	+2
20	10/23	call	3	1	-2
21	10/23	call	3	3	0
21	10/23	put	1	0	-1
22	10/23	call	1	1	0
22	10/23	put	0	1	+1

Expiration 2026-10-30

SMR open interest, settled 2026-10-21, expiration 2026-10-30, strikes 1 to 20

Strike	Expiry	Type	Prior OI	Settled OI	Change
1	10/30	call	11	12	+1
1	10/30	put	2	3	+1
2	10/30	put	1	3	+2
3	10/30	call	2	7	+5
4	10/30	call	8	11	+3
4	10/30	put	3	4	+1
4.5	10/30	put	4	8	+4
5	10/30	call	270	270	0
5	10/30	put	231	254	+23
5.5	10/30	call	125	163	+38
5.5	10/30	put	273	408	+135
6	10/30	call	741	758	+17
6	10/30	put	375	480	+105
6.5	10/30	call	1,098	1,409	+311
6.5	10/30	put	646	630	-16
7	10/30	call	1,696	1,715	+19
7	10/30	put	907	913	+6
7.5	10/30	call	579	579	0
7.5	10/30	put	1,084	1,084	0
8	10/30	call	1,361	1,352	-9
8	10/30	put	765	752	-13
8.5	10/30	call	759	748	-11
8.5	10/30	put	254	236	-18
9	10/30	call	2,942	2,942	0
9	10/30	put	202	202	0
9.5	10/30	call	237	237	0
9.5	10/30	put	51	50	-1
10	10/30	call	1,291	1,252	-39
10	10/30	put	109	109	0
10.5	10/30	call	186	186	0
10.5	10/30	put	50	50	0
11	10/30	call	211	211	0
11	10/30	put	90	90	0
11.5	10/30	call	130	130	0
11.5	10/30	put	92	91	-1
12	10/30	call	252	252	0
12	10/30	put	59	59	0
12.5	10/30	call	60	60	0
13	10/30	call	27	27	0
13.5	10/30	call	77	77	0
14	10/30	call	9	9	0
14	10/30	put	0	1	+1
14.5	10/30	call	7	7	0
15	10/30	call	199	199	0
15	10/30	put	1	1	0
15.5	10/30	call	12	12	0
16	10/30	call	6	6	0
17	10/30	call	3	3	0
18	10/30	call	5	5	0
19	10/30	call	1	1	0
20	10/30	call	1	1	0
20	10/30	put	0	1	+1

Expiration 2026-11-06

SMR open interest, settled 2026-10-21, expiration 2026-11-06, strikes 1 to 17

Strike	Expiry	Type	Prior OI	Settled OI	Change
1	11/06	call	9	12	+3
1	11/06	put	1	4	+3
2	11/06	put	0	1	+1
3	11/06	call	1	1	0
3.5	11/06	put	1	2	+1
4	11/06	call	7	7	0
4	11/06	put	17	17	0
4.5	11/06	call	0	1	+1
4.5	11/06	put	66	68	+2
5	11/06	call	25	25	0
5	11/06	put	269	300	+31
5.5	11/06	call	32	152	+120
5.5	11/06	put	134	140	+6
6	11/06	call	3,412	4,047	+635
6	11/06	put	322	322	0
6.5	11/06	call	1,730	1,770	+40
6.5	11/06	put	201	209	+8
7	11/06	call	1,216	1,220	+4
7	11/06	put	1,636	1,637	+1
7.5	11/06	call	876	879	+3
7.5	11/06	put	619	620	+1
8	11/06	call	908	927	+19
8	11/06	put	162	166	+4
8.5	11/06	call	513	514	+1
8.5	11/06	put	222	213	-9
9	11/06	call	616	616	0
9	11/06	put	24	22	-2
9.5	11/06	call	462	465	+3
9.5	11/06	put	30	30	0
10	11/06	call	1,321	1,320	-1
10	11/06	put	3	4	+1
10.5	11/06	call	109	110	+1
10.5	11/06	put	55	26	-29
11	11/06	call	187	187	0
11	11/06	put	46	46	0
11.5	11/06	call	51	51	0
11.5	11/06	put	131	123	-8
12	11/06	call	39	39	0
12	11/06	put	13	13	0
12.5	11/06	call	108	108	0
12.5	11/06	put	1	1	0
13	11/06	call	10	10	0
13	11/06	put	1	0	-1
13.5	11/06	call	13	13	0
14	11/06	call	101	101	0
15	11/06	call	2	2	0
17	11/06	call	100	100	0

Expiration 2026-11-13

SMR open interest, settled 2026-10-21, expiration 2026-11-13, strikes 1 to 14

Strike	Expiry	Type	Prior OI	Settled OI	Change
1	11/13	call	3	4	+1
1	11/13	put	1	2	+1
4	11/13	put	11	15	+4
4.5	11/13	put	104	105	+1
5	11/13	call	29	29	0
5	11/13	put	19	22	+3
5.5	11/13	call	20	20	0
5.5	11/13	put	79	80	+1
6	11/13	call	248	413	+165
6	11/13	put	147	149	+2
6.5	11/13	call	194	194	0
6.5	11/13	put	112	112	0
7	11/13	call	174	180	+6
7	11/13	put	107	104	-3
7.5	11/13	call	343	344	+1
7.5	11/13	put	117	115	-2
8	11/13	call	382	381	-1
8	11/13	put	82	82	0
8.5	11/13	call	55	55	0
8.5	11/13	put	59	59	0
9	11/13	call	176	168	-8
9	11/13	put	21	21	0
9.5	11/13	call	63	62	-1
9.5	11/13	put	31	29	-2
10	11/13	call	64	64	0
10	11/13	put	126	124	-2
10.5	11/13	call	103	103	0
10.5	11/13	put	64	64	0
11	11/13	call	48	47	-1
11	11/13	put	163	163	0
11.5	11/13	call	42	44	+2
11.5	11/13	put	136	132	-4
12	11/13	call	29	29	0
12	11/13	put	24	26	+2
12.5	11/13	call	2	2	0
13	11/13	call	6	6	0
13	11/13	put	2	3	+1
13.5	11/13	call	2	2	0
14	11/13	call	2	2	0

Expiration 2026-11-20

SMR open interest, settled 2026-10-21, expiration 2026-11-20, strikes 1 to 26

Strike	Expiry	Type	Prior OI	Settled OI	Change
1	11/20	call	120	124	+4
1	11/20	put	15	20	+5
2	11/20	call	6	6	0
2	11/20	put	1	1	0
3	11/20	call	32	32	0
3	11/20	put	187	189	+2
3.5	11/20	call	0	1	+1
3.5	11/20	put	3	4	+1
4	11/20	call	170	170	0
4	11/20	put	1,231	1,231	0
4.5	11/20	put	43	71	+28
5	11/20	call	267	274	+7
5	11/20	put	6,348	6,388	+40
5.5	11/20	call	15	45	+30
5.5	11/20	put	112	314	+202
6	11/20	call	940	1,099	+159
6	11/20	put	3,578	3,582	+4
6.5	11/20	call	31	45	+14
6.5	11/20	put	9	9	0
7	11/20	call	2,320	2,312	-8
7	11/20	put	3,962	3,959	-3
7.5	11/20	call	201	236	+35
7.5	11/20	put	15	16	+1
8	11/20	call	4,901	4,912	+11
8	11/20	put	8,823	8,830	+7
8.5	11/20	call	25	32	+7
8.5	11/20	put	0	10	+10
9	11/20	call	6,757	6,852	+95
9	11/20	put	3,446	3,445	-1
9.5	11/20	call	10	10	0
9.5	11/20	put	1	1	0
10	11/20	call	7,442	7,417	-25
10	11/20	put	5,877	5,905	+28
10.5	11/20	call	3	3	0
10.5	11/20	put	2	2	0
11	11/20	call	6,183	6,175	-8
11	11/20	put	1,299	1,269	-30
12	11/20	call	5,487	5,493	+6
12	11/20	put	463	381	-82
13	11/20	call	2,865	2,865	0
13	11/20	put	256	211	-45
14	11/20	call	2,203	2,203	0
14	11/20	put	64	64	0
15	11/20	call	4,542	4,540	-2
15	11/20	put	296	265	-31
16	11/20	call	1,129	1,133	+4
16	11/20	put	4	4	0
17	11/20	call	1,712	1,719	+7
17	11/20	put	4	4	0
18	11/20	call	1,400	1,400	0
18	11/20	put	2	2	0
19	11/20	call	1,142	1,142	0
19	11/20	put	11	11	0
20	11/20	call	5,591	5,593	+2
21	11/20	call	605	605	0
22	11/20	call	605	605	0
23	11/20	call	816	816	0
24	11/20	call	655	655	0
25	11/20	call	4,984	4,984	0
26	11/20	call	690	690	0

Expiration 2026-11-27

SMR open interest, settled 2026-10-21, expiration 2026-11-27, strikes 1 to 15

Strike	Expiry	Type	Prior OI	Settled OI	Change
1	11/27	call	2	3	+1
1	11/27	put	0	1	+1
2	11/27	call	1	1	0
3	11/27	put	10	20	+10
3.5	11/27	put	1	1	0
4	11/27	call	1	1	0
4	11/27	put	0	10	+10
4.5	11/27	put	3	7	+4
5	11/27	call	1	1	0
5	11/27	put	58	79	+21
5.5	11/27	call	35	44	+9
5.5	11/27	put	60	70	+10
6	11/27	call	20	24	+4
6	11/27	put	75	75	0
6.5	11/27	call	271	277	+6
6.5	11/27	put	80	80	0
7	11/27	call	268	271	+3
7	11/27	put	123	123	0
7.5	11/27	call	24	24	0
7.5	11/27	put	31	34	+3
8	11/27	call	322	326	+4
8	11/27	put	240	252	+12
8.5	11/27	call	39	47	+8
8.5	11/27	put	116	125	+9
9	11/27	call	64	64	0
9	11/27	put	26	28	+2
9.5	11/27	call	110	110	0
9.5	11/27	put	11	12	+1
10	11/27	call	10	10	0
10	11/27	put	22	22	0
10.5	11/27	call	4	4	0
10.5	11/27	put	51	51	0
11	11/27	call	4	4	0
11	11/27	put	30	29	-1
11.5	11/27	call	3	4	+1
11.5	11/27	put	243	257	+14
12	11/27	call	12	12	0
12	11/27	put	59	59	0
12.5	11/27	call	10	10	0
12.5	11/27	put	8	8	0
13	11/27	call	5	5	0
14	11/27	call	4	4	0
15	11/27	call	0	1	+1

Later expirations (2026-12-18, 2027-01-15, 2027-02-19, 2027-05-21, 2028-01-21, 2029-01-19) and all other strikes are in the Markdown table.

Markdown table | Open interest changes across symbols

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