KEY Options Open Interest by Strike, Oct 21 Settlement

KEY 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, 208 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 17 to 25. Source: SquawkFlow's archive of settled open interest. Counts are contracts, not trades; they do not identify which side opened or closed a position.

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

Strike	Expiry	Type	Prior OI	Settled OI	Change
22	11/20	call	2,617	2,760	+143
23	06/17	call	12	65	+53
20	01/19	put	165	213	+48
22	01/19	put	46	94	+48
22	01/21	call	2,228	2,271	+43
20	01/19	call	177	218	+41
22	01/15	call	3,897	3,928	+31
22	03/19	call	433	463	+30
24	11/20	call	2,792	2,817	+25
23	02/19	call	25	45	+20
23	05/21	call	500	520	+20
14	02/19	put	1	13	+12
24	02/19	call	30	42	+12
15	01/19	call	14	26	+12
18	01/19	put	2	14	+12

Expiration 2026-11-20

KEY open interest, settled 2026-10-21, expiration 2026-11-20, strikes 12 to 29

Strike	Expiry	Type	Prior OI	Settled OI	Change
12	11/20	call	5	5	0
15	11/20	call	1	1	0
15	11/20	put	8	8	0
16	11/20	put	28	28	0
17	11/20	call	11	11	0
17	11/20	put	34	36	+2
18	11/20	call	9	9	0
18	11/20	put	95	95	0
19	11/20	call	661	655	-6
19	11/20	put	1,816	1,824	+8
20	11/20	call	1,854	1,848	-6
20	11/20	put	1,420	1,422	+2
21	11/20	call	1,813	1,815	+2
21	11/20	put	368	368	0
22	11/20	call	2,617	2,760	+143
22	11/20	put	554	554	0
23	11/20	call	1,108	1,112	+4
23	11/20	put	128	128	0
24	11/20	call	2,792	2,817	+25
24	11/20	put	9	9	0
25	11/20	call	376	371	-5
26	11/20	call	211	211	0
27	11/20	call	24	24	0
28	11/20	call	2	2	0
29	11/20	call	1	1	0

Expiration 2026-12-18

KEY open interest, settled 2026-10-21, expiration 2026-12-18, strikes 5 to 30

Strike	Expiry	Type	Prior OI	Settled OI	Change
5	12/18	call	7	7	0
5	12/18	put	10	10	0
8	12/18	put	23	23	0
10	12/18	put	51	51	0
13	12/18	put	17	17	0
14	12/18	put	5	5	0
15	12/18	put	51	51	0
16	12/18	put	63	63	0
17	12/18	call	136	136	0
17	12/18	put	247	248	+1
18	12/18	call	5	1	-4
18	12/18	put	36	36	0
19	12/18	call	616	615	-1
19	12/18	put	2,426	2,427	+1
20	12/18	call	345	351	+6
20	12/18	put	4,256	4,250	-6
21	12/18	call	1,229	1,231	+2
21	12/18	put	267	267	0
22	12/18	call	6,891	6,887	-4
22	12/18	put	395	395	0
23	12/18	call	1,163	1,166	+3
23	12/18	put	123	123	0
24	12/18	call	687	687	0
24	12/18	put	148	148	0
25	12/18	call	5,814	5,813	-1
25	12/18	put	74	74	0
26	12/18	call	649	649	0
27	12/18	call	192	192	0
28	12/18	call	18	18	0
30	12/18	call	15	15	0

Expiration 2027-01-15

KEY open interest, settled 2026-10-21, expiration 2027-01-15, strikes 3 to 35

Strike	Expiry	Type	Prior OI	Settled OI	Change
3	01/15	call	4	4	0
5	01/15	call	1	1	0
8	01/15	put	66	66	0
10	01/15	call	1	1	0
10	01/15	put	994	994	0
13	01/15	put	926	926	0
15	01/15	call	136	136	0
15	01/15	put	7,136	7,136	0
17	01/15	call	2,796	2,796	0
17	01/15	put	4,578	4,585	+7
20	01/15	call	2,826	2,826	0
20	01/15	put	3,518	3,518	0
22	01/15	call	3,897	3,928	+31
22	01/15	put	646	646	0
25	01/15	call	4,685	4,693	+8
25	01/15	put	10	10	0
27	01/15	call	1,575	1,575	0
27	01/15	put	1	1	0
30	01/15	call	573	573	0
35	01/15	call	110	110	0

Expiration 2027-02-19

KEY open interest, settled 2026-10-21, expiration 2027-02-19, strikes 14 to 25

Strike	Expiry	Type	Prior OI	Settled OI	Change
14	02/19	put	1	13	+12
15	02/19	put	1	1	0
19	02/19	put	1	3	+2
20	02/19	put	1	1	0
21	02/19	call	50	50	0
21	02/19	put	2	2	0
22	02/19	call	129	139	+10
23	02/19	call	25	45	+20
24	02/19	call	30	42	+12
25	02/19	call	2	12	+10

Expiration 2027-03-19

KEY open interest, settled 2026-10-21, expiration 2027-03-19, strikes 13 to 31

Strike	Expiry	Type	Prior OI	Settled OI	Change
13	03/19	call	5	5	0
13	03/19	put	58	58	0
15	03/19	call	65	65	0
15	03/19	put	146	146	0
16	03/19	put	59	70	+11
17	03/19	put	44	46	+2
18	03/19	call	22	22	0
18	03/19	put	661	661	0
19	03/19	call	14	14	0
19	03/19	put	629	629	0
20	03/19	call	468	468	0
20	03/19	put	203	203	0
21	03/19	call	83	83	0
21	03/19	put	116	116	0
22	03/19	call	433	463	+30
22	03/19	put	130	130	0
23	03/19	call	298	303	+5
23	03/19	put	74	74	0
24	03/19	call	379	379	0
25	03/19	call	223	224	+1
26	03/19	call	74	74	0
27	03/19	call	83	89	+6
28	03/19	call	11	11	0
29	03/19	call	9	9	0
30	03/19	call	29	29	0
31	03/19	call	4	4	0

Expiration 2027-04-16

KEY open interest, settled 2026-10-21, expiration 2027-04-16, strikes 17 to 27

Strike	Expiry	Type	Prior OI	Settled OI	Change
17	04/16	call	1	1	0
20	04/16	call	45	45	0
21	04/16	call	13	13	0
22	04/16	call	1	1	0
23	04/16	call	5	5	0
24	04/16	call	3	3	0
25	04/16	call	40	45	+5
27	04/16	call	3	3	0

Later expirations (2027-05-21, 2027-06-17, 2027-09-17, 2027-12-17, 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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