BILL Options Open Interest by Strike, Oct 21 Settlement

BILL 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 14 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, 394 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 39 to 59. Source: SquawkFlow's archive of settled open interest. Counts are contracts, not trades; they do not identify which side opened or closed a position.

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

Strike	Expiry	Type	Prior OI	Settled OI	Change
52	10/30	call	5	1,016	+1,011
65	01/15	call	930	1,574	+644
50	11/20	call	822	1,327	+505
70	01/19	call	50	250	+200
55	05/21	call	5	135	+130
56	10/30	call	2	87	+85
65	01/19	call	0	65	+65
45	02/19	put	336	276	-60
65	11/20	call	1,674	1,623	-51
49	10/23	call	26	74	+48
55	10/30	call	0	45	+45
41.5	11/06	put	0	39	+39
60	11/20	call	1,086	1,125	+39
65	02/19	call	6	45	+39
50	11/06	call	12	47	+35

Expiration 2026-10-23

BILL open interest, settled 2026-10-21, expiration 2026-10-23, strikes 25 to 65

Strike	Expiry	Type	Prior OI	Settled OI	Change
25	10/23	call	0	1	+1
30	10/23	call	0	2	+2
33	10/23	call	0	7	+7
34	10/23	call	0	7	+7
35	10/23	put	1	1	0
36	10/23	call	4	4	0
37	10/23	call	4	7	+3
38	10/23	call	0	6	+6
39	10/23	call	0	2	+2
39	10/23	put	4	4	0
40	10/23	call	6	6	0
40	10/23	put	21	21	0
41	10/23	call	2	3	+1
41	10/23	put	7	7	0
41.5	10/23	call	1	1	0
42	10/23	call	3	6	+3
42	10/23	put	104	104	0
42.5	10/23	call	0	2	+2
42.5	10/23	put	4	4	0
43	10/23	call	0	1	+1
43	10/23	put	1,073	1,073	0
43.5	10/23	call	2	3	+1
43.5	10/23	put	1	1	0
44	10/23	call	9	10	+1
44	10/23	put	40	40	0
44.5	10/23	put	21	36	+15
45	10/23	call	18	18	0
45	10/23	put	7	8	+1
45.5	10/23	call	32	32	0
45.5	10/23	put	2	19	+17
46	10/23	call	20	21	+1
46	10/23	put	15	16	+1
46.5	10/23	call	58	58	0
46.5	10/23	put	25	25	0
47	10/23	call	61	61	0
47	10/23	put	30	43	+13
47.5	10/23	call	7	10	+3
48	10/23	call	18	21	+3
48	10/23	put	0	20	+20
48.5	10/23	call	40	40	0
49	10/23	call	26	74	+48
50	10/23	call	396	399	+3
50	10/23	put	4	4	0
51	10/23	call	40	48	+8
51	10/23	put	1	1	0
52	10/23	call	0	30	+30
52	10/23	put	2	4	+2
53	10/23	call	0	5	+5
53	10/23	put	2	4	+2
57	10/23	call	52	52	0
58	10/23	call	9	16	+7
58	10/23	put	1	0	-1
59	10/23	call	2	2	0
59	10/23	put	1	2	+1
60	10/23	call	2	2	0
60	10/23	put	1	1	0
65	10/23	call	75	75	0

Expiration 2026-10-30

BILL open interest, settled 2026-10-21, expiration 2026-10-30, strikes 37 to 65

Strike	Expiry	Type	Prior OI	Settled OI	Change
37	10/30	put	97	97	0
38	10/30	put	6	6	0
39	10/30	call	1	1	0
39	10/30	put	85	85	0
40	10/30	call	1	1	0
40	10/30	put	151	151	0
41	10/30	put	2	2	0
41.5	10/30	put	1	1	0
42	10/30	put	150	150	0
42.5	10/30	call	1	1	0
42.5	10/30	put	0	5	+5
43	10/30	call	2	2	0
43	10/30	put	124	125	+1
43.5	10/30	put	1	1	0
44	10/30	put	39	39	0
44.5	10/30	put	1	2	+1
45	10/30	call	46	47	+1
45	10/30	put	3	3	0
46	10/30	call	6	6	0
46.5	10/30	put	10	10	0
47	10/30	call	29	28	-1
47.5	10/30	call	1	1	0
48	10/30	call	14	12	-2
48.5	10/30	call	0	1	+1
49	10/30	call	8	10	+2
49	10/30	put	0	4	+4
50	10/30	call	23	29	+6
51	10/30	call	51	51	0
52	10/30	call	5	1,016	+1,011
53	10/30	call	27	27	0
55	10/30	call	0	45	+45
56	10/30	call	2	87	+85
57	10/30	call	4	4	0
58	10/30	call	13	13	0
59	10/30	call	3	3	0
60	10/30	call	3	3	0
65	10/30	call	6	6	0

Expiration 2026-11-06

BILL open interest, settled 2026-10-21, expiration 2026-11-06, strikes 36 to 58

Strike	Expiry	Type	Prior OI	Settled OI	Change
36	11/06	put	22	22	0
37	11/06	put	3	3	0
38	11/06	put	3	3	0
39	11/06	put	4	4	0
40	11/06	call	3	3	0
40	11/06	put	152	152	0
41	11/06	call	3	3	0
41	11/06	put	5	5	0
41.5	11/06	put	0	39	+39
42	11/06	put	155	155	0
43	11/06	put	5	5	0
44	11/06	call	1	1	0
44	11/06	put	88	88	0
45	11/06	call	8	8	0
45	11/06	put	1	3	+2
46	11/06	call	5	5	0
46	11/06	put	18	17	-1
47	11/06	call	3	8	+5
47.5	11/06	call	0	1	+1
47.5	11/06	put	0	1	+1
48	11/06	call	135	132	-3
48	11/06	put	1	1	0
48.5	11/06	call	0	2	+2
49	11/06	call	1	3	+2
50	11/06	call	12	47	+35
51	11/06	call	20	20	0
52	11/06	call	3	14	+11
53	11/06	call	0	4	+4
55	11/06	call	5	21	+16
56	11/06	call	1	1	0
57	11/06	call	1	1	0
58	11/06	call	1	1	0

Expiration 2026-11-13

BILL open interest, settled 2026-10-21, expiration 2026-11-13, strikes 38 to 65

Strike	Expiry	Type	Prior OI	Settled OI	Change
38	11/13	call	3	3	0
38	11/13	put	1	1	0
39	11/13	put	10	10	0
43	11/13	put	12	12	0
44	11/13	put	85	85	0
45	11/13	put	100	100	0
47	11/13	call	5	6	+1
48	11/13	call	8	8	0
50	11/13	call	0	15	+15
52	11/13	call	3	3	0
53	11/13	call	1	1	0
55	11/13	call	1	1	0
60	11/13	call	1	1	0
65	11/13	call	2	2	0

Expiration 2026-11-20

BILL open interest, settled 2026-10-21, expiration 2026-11-20, strikes 20 to 70

Strike	Expiry	Type	Prior OI	Settled OI	Change
20	11/20	call	1	1	0
20	11/20	put	38	38	0
22.5	11/20	put	87	87	0
25	11/20	put	102	102	0
27.5	11/20	call	2	2	0
27.5	11/20	put	82	82	0
30	11/20	call	5	5	0
30	11/20	put	676	676	0
32.5	11/20	call	133	133	0
32.5	11/20	put	679	679	0
35	11/20	call	16	16	0
35	11/20	put	945	945	0
36	11/20	put	0	2	+2
37	11/20	put	0	7	+7
37.5	11/20	call	110	110	0
37.5	11/20	put	187	188	+1
40	11/20	call	123	123	0
40	11/20	put	173	173	0
42.5	11/20	call	32	32	0
42.5	11/20	put	383	383	0
45	11/20	call	170	170	0
45	11/20	put	2,272	2,272	0
46	11/20	put	17	17	0
47.5	11/20	call	156	156	0
47.5	11/20	put	19	19	0
48	11/20	call	0	10	+10
48.5	11/20	call	0	34	+34
50	11/20	call	822	1,327	+505
50	11/20	put	47	52	+5
51	11/20	call	0	3	+3
52.5	11/20	call	102	104	+2
53	11/20	call	0	10	+10
54	11/20	call	0	1	+1
55	11/20	call	1,115	1,141	+26
55	11/20	put	5	5	0
57.5	11/20	call	61	61	0
60	11/20	call	1,086	1,125	+39
65	11/20	call	1,674	1,623	-51
70	11/20	call	104	105	+1

Expiration 2026-11-27

BILL open interest, settled 2026-10-21, expiration 2026-11-27, strikes 30 to 65

Strike	Expiry	Type	Prior OI	Settled OI
30	11/27	put	1	1
41	11/27	put	10	10
43	11/27	put	10	10
53	11/27	call	2	2
60	11/27	call	1	1
65	11/27	call	1	1

Later expirations (2026-12-18, 2027-01-15, 2027-02-19, 2027-05-21, 2028-01-21, 2028-06-16, 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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