ZS · Option chain

ZS Option Chain

Every listed ZS strike within 25% of spot, across the next 6 expirations — calls and puts side by side with last price, volume and open interest, plus the closing bid and ask.

Open interest and pricing as of the close on 2026-09-03. Recomputed every morning before the open.

Spot

$177.80

Call open interest

22,221

Put open interest

17,454

Put/call (volume)

0.59

29,805 contracts changed hands across these expirations — 18,769 calls against 11,036 puts. Calls outtraded puts 1.70 to one.

Sep 11, 20266 days

call OI 4,172 · put OI 2,714

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	42.75 / 46.20	—	—	134	0.71	0.02 / 1.95	16	5
—	42.10 / 45.50	—	2	135	0.83	0.75 / 0.88	137	48
—	41.00 / 44.70	—	5	136	0.85	0.51 / 1.64	36	6
—	40.00 / 43.65	—	64	137	0.97	0.58 / 1.55	37	4
—	39.10 / 42.75	—	53	138	1.14	0.81 / 1.56	37	96
—	38.20 / 41.85	—	35	139	1.23	0.90 / 1.71	49	33
38.50	37.30 / 40.85	2	61	140	1.34	1.10 / 1.45	309	96
—	36.50 / 39.60	—	119	141	1.37	1.15 / 1.83	28	2
—	35.50 / 39.20	—	142	142	1.57	0.72 / 2.52	13	9
—	34.65 / 37.85	—	51	143	1.72	1.28 / 2.00	48	31
—	34.15 / 37.50	—	81	144	1.81	1.31 / 2.43	11	14
34.12	33.00 / 36.65	1	65	145	1.95	1.68 / 2.00	207	273
34.25	32.10 / 35.85	1	23	146	2.07	1.81 / 2.71	52	53
—	31.30 / 35.00	—	18	147	2.15	2.01 / 2.96	4	5
—	30.50 / 34.20	—	16	148	2.43	2.18 / 3.05	78	5
30.81	29.65 / 33.40	1	3	149	2.66	2.50 / 3.35	21	12
32.00	29.40 / 32.10	52	3	150	3.05	2.69 / 3.10	441	183
28.83	27.00 / 30.75	1	10	152.5	3.56	3.10 / 3.80	40	22
27.80	25.45 / 28.45	7	18	155	4.13	3.85 / 4.40	159	246
—	23.70 / 26.55	—	15	157.5	4.90	4.60 / 5.60	172	23
23.74	23.40 / 24.90	41	26	160	6.00	5.50 / 6.15	527	285
22.57	20.45 / 23.35	1	15	162.5	6.89	6.20 / 7.50	34	103
20.58	20.00 / 21.50	13	34	165	7.63	7.15 / 7.90	259	60
18.08	19.00 / 20.35	2	80	167.5	8.80	8.15 / 9.25	76	87
17.85	17.45 / 18.90	76	72	170	10.00	9.30 / 10.05	322	171
16.65	16.00 / 17.60	312	98	172.5	11.55	10.45 / 11.50	53	47
15.60	15.15 / 16.05	1,174	244	175	12.24	11.65 / 12.75	696	392
15.30	14.15 / 15.25	238	39	177.5	13.65	12.95 / 13.95	139	28
13.50	13.10 / 13.95	561	70	180	15.22	14.40 / 15.55	192	77
12.50	12.05 / 13.00	81	19	182.5	15.70	15.50 / 17.80	16	23
11.33	10.90 / 11.90	182	124	185	18.17	17.10 / 19.30	29	67
10.52	9.90 / 10.95	103	77	187.5	19.50	18.70 / 21.70	8	70
9.70	9.10 / 10.00	410	228	190	21.53	20.45 / 22.35	11	42
8.70	8.40 / 9.25	82	72	192.5	22.13	22.15 / 24.25	22	26
8.09	7.75 / 8.45	187	81	195	24.93	23.95 / 26.65	4	13
7.50	7.30 / 7.85	57	7	197.5	—	25.80 / 28.50	—	—
6.90	6.70 / 7.05	857	809	200	26.70	27.65 / 30.05	1	31
6.19	5.80 / 6.55	55	33	202.5	—	29.60 / 32.20	—	—
5.55	5.30 / 5.95	155	353	205	32.77	31.40 / 33.95	38	26
5.10	4.85 / 5.40	14	17	207.5	—	33.60 / 35.95	—	—
4.79	4.70 / 4.80	3,081	227	210	35.93	35.65 / 38.25	1	—
4.19	3.90 / 4.65	56	22	212.5	—	37.55 / 40.05	—	—
3.85	3.55 / 4.25	98	189	215	—	39.65 / 42.30	—	—
3.40	3.10 / 3.90	104	73	217.5	—	41.15 / 44.95	—	—
3.25	2.93 / 3.50	435	379	220	—	43.35 / 47.05	—	—
A dash means the contract did not trade — not a price of zero.

Sep 18, 202613 days

call OI 16,071 · put OI 10,919

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
44.04	42.35 / 45.70	1	512	135	1.04	0.85 / 1.20	896	743
39.59	37.80 / 40.90	17	340	140	1.63	1.51 / 1.72	478	1,424
35.07	33.80 / 36.80	1	183	145	2.40	2.26 / 2.51	170	602
31.55	29.50 / 32.75	28	846	150	3.35	3.30 / 3.50	400	1,082
28.95	28.00 / 31.35	3	—	152.5	4.09	3.45 / 4.95	175	40
28.13	26.15 / 29.00	8	379	155	4.60	4.55 / 5.00	278	432
—	24.30 / 27.85	—	1	157.5	5.50	5.25 / 6.65	15	74
24.78	24.35 / 25.80	14	775	160	6.24	6.05 / 6.45	126	820
—	21.20 / 23.90	—	12	162.5	6.96	6.40 / 8.25	44	61
21.25	20.45 / 22.20	185	400	165	8.65	7.90 / 9.25	153	432
18.45	19.70 / 21.30	49	33	167.5	8.65	7.70 / 10.60	60	17
18.58	18.20 / 19.55	100	435	170	10.40	10.00 / 10.85	306	522
17.65	16.85 / 18.85	232	30	172.5	11.70	11.00 / 12.95	42	105
16.18	15.80 / 16.95	990	743	175	12.65	11.75 / 13.45	311	1,201
15.15	14.70 / 15.75	186	22	177.5	14.30	13.75 / 14.65	246	24
14.00	13.90 / 14.60	360	1,525	180	15.34	14.55 / 17.50	273	649
12.80	12.55 / 13.60	69	172	182.5	16.18	15.70 / 18.75	4	281
12.00	12.00 / 12.65	182	1,657	185	18.60	17.85 / 20.00	17	481
11.17	10.05 / 11.70	10	54	187.5	20.60	19.25 / 22.00	15	8
10.36	10.25 / 11.00	1,156	1,843	190	21.02	20.95 / 23.60	20	206
9.20	7.85 / 10.50	15	154	192.5	22.90	21.95 / 24.55	15	16
8.65	8.35 / 9.10	104	430	195	24.80	23.90 / 27.10	3	160
8.04	7.05 / 8.40	36	57	197.5	—	26.30 / 28.75	—	12
7.40	7.15 / 8.25	1,062	2,259	200	28.00	28.60 / 31.00	14	850
6.19	5.90 / 6.60	189	69	205	—	32.05 / 34.90	—	17
5.20	5.00 / 5.50	1,146	1,761	210	—	36.10 / 38.60	—	183
4.29	4.30 / 4.65	79	144	215	—	40.30 / 43.20	—	1
3.65	3.55 / 3.85	1,105	1,235	220	46.80	43.80 / 47.35	2	476
A dash means the contract did not trade — not a price of zero.

Sep 25, 202620 days

call OI 880 · put OI 1,278

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	42.55 / 46.15	—	—	135	1.40	1.12 / 1.68	34	37
—	38.30 / 41.80	—	1	140	1.94	1.66 / 1.97	118	361
—	34.30 / 37.60	—	4	145	2.70	2.36 / 3.30	10	41
—	33.50 / 36.70	—	—	146	2.93	2.17 / 3.70	3	—
—	32.35 / 36.10	—	—	147	3.10	3.00 / 3.40	10	—
—	31.55 / 35.30	—	4	148	3.08	2.54 / 3.90	4	5
—	30.85 / 34.55	—	—	149	3.38	2.51 / 4.70	1	7
—	30.10 / 33.75	—	8	150	3.65	3.15 / 3.90	56	127
—	30.05 / 31.95	—	—	152.5	4.29	3.65 / 4.80	2	5
—	26.85 / 30.20	—	5	155	5.21	4.80 / 5.95	6	241
—	24.95 / 28.45	—	—	157.5	—	5.00 / 6.90	—	37
24.55	24.70 / 26.30	1	9	160	6.52	6.10 / 7.60	22	31
—	21.80 / 24.75	—	5	162.5	7.43	6.65 / 8.55	8	13
22.44	21.05 / 23.45	4	6	165	8.10	8.05 / 9.95	8	51
—	18.55 / 21.60	—	5	167.5	9.58	8.55 / 11.30	4	17
20.05	17.60 / 20.60	36	15	170	10.70	10.20 / 12.20	49	53
18.50	16.65 / 19.20	12	13	172.5	11.47	10.95 / 13.40	1	13
15.70	15.45 / 17.95	22	22	175	13.50	13.30 / 14.40	66	93
15.89	15.10 / 17.20	40	11	177.5	15.05	14.20 / 15.75	45	10
14.34	14.00 / 15.80	69	39	180	15.30	15.05 / 17.45	1	86
13.59	12.05 / 14.75	39	11	182.5	—	16.60 / 19.05	—	8
12.59	11.10 / 14.00	5	44	185	—	18.20 / 20.90	—	31
11.57	10.25 / 12.80	13	24	187.5	—	19.80 / 22.20	—	1
10.82	9.30 / 12.20	87	62	190	—	21.45 / 23.95	—	3
10.06	9.05 / 10.75	26	49	192.5	—	23.20 / 25.95	—	—
9.25	8.45 / 10.10	22	68	195	—	25.05 / 27.50	—	—
8.68	7.35 / 9.45	4	2	197.5	28.18	26.85 / 29.25	1	—
8.00	7.65 / 8.85	56	69	200	—	28.10 / 31.35	—	2
7.20	6.30 / 8.05	1	8	202.5	—	30.00 / 33.10	—	—
6.60	6.40 / 7.25	8	26	205	—	32.55 / 35.05	—	—
—	5.30 / 7.25	—	5	207.5	—	34.50 / 37.25	—	—
5.86	5.55 / 6.15	22	109	210	—	36.55 / 39.05	—	4
3.90	4.15 / 5.45	1	4	215	—	40.70 / 43.35	—	—
4.10	3.10 / 4.45	87	252	220	—	44.95 / 47.65	—	1
A dash means the contract did not trade — not a price of zero.

Oct 02, 202627 days

call OI 326 · put OI 1,193

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	42.95 / 46.55	—	1	135	1.58	1.10 / 2.46	20	504
—	38.70 / 42.35	—	1	140	2.20	1.84 / 2.60	62	223
—	34.55 / 38.25	—	2	145	3.09	2.45 / 4.35	14	9
—	32.90 / 36.65	—	—	147	3.20	2.60 / 3.90	6	—
—	32.25 / 35.90	—	—	148	3.69	2.48 / 4.90	10	—
32.91	30.85 / 34.30	14	1	150	4.17	3.70 / 4.65	37	59
—	28.80 / 32.60	—	—	152.5	4.55	4.15 / 5.70	7	16
—	27.25 / 30.45	—	1	155	5.50	4.85 / 6.20	13	8
25.10	25.55 / 28.65	4	—	157.5	6.20	5.35 / 7.40	1	40
24.13	23.95 / 26.90	1	3	160	7.00	6.10 / 8.45	12	54
—	22.55 / 25.60	—	—	162.5	7.98	6.95 / 9.30	3	18
—	21.15 / 23.90	—	—	165	9.00	7.95 / 10.60	8	73
—	19.55 / 22.45	—	—	167.5	10.10	9.50 / 11.25	105	2
20.35	17.95 / 21.70	11	35	170	11.42	10.25 / 12.85	142	10
—	17.00 / 19.90	—	4	172.5	12.27	11.50 / 14.15	3	22
17.65	15.70 / 18.55	18	8	175	13.62	12.80 / 15.60	64	33
16.00	15.95 / 17.35	34	15	177.5	15.15	14.95 / 17.05	178	29
15.50	14.10 / 16.00	128	13	180	15.75	15.60 / 18.05	6	53
12.20	13.50 / 16.10	2	3	182.5	—	17.10 / 19.90	—	8
13.49	11.70 / 14.60	10	18	185	19.63	18.30 / 21.65	1	9
12.40	10.85 / 13.05	4	6	187.5	21.13	20.25 / 22.95	13	17
11.45	10.50 / 12.35	34	39	190	—	21.65 / 24.60	—	5
10.80	9.30 / 11.85	1	—	192.5	—	23.00 / 26.40	—	—
9.60	8.60 / 11.00	109	3	195	—	25.50 / 28.20	—	1
9.27	8.20 / 10.05	10	—	197.5	—	27.30 / 30.00	—	—
8.50	7.95 / 9.00	65	97	200	—	29.15 / 32.00	—	—
—	7.65 / 8.80	—	6	202.5	—	31.00 / 33.60	—	—
7.20	6.25 / 8.15	8	10	205	—	32.95 / 35.65	—	—
5.10	5.80 / 7.50	2	4	207.5	—	34.90 / 37.80	—	—
6.25	5.80 / 6.85	14	21	210	—	36.85 / 39.80	—	—
5.35	4.65 / 6.40	1	15	215	—	40.95 / 43.55	—	—
4.44	3.80 / 5.45	5	20	220	—	45.20 / 48.05	—	—
A dash means the contract did not trade — not a price of zero.

Oct 09, 202634 days

call OI 66 · put OI 121

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	43.35 / 46.95	—	—	135	1.67	0.03 / 3.35	419	5
—	39.30 / 42.80	—	—	140	2.42	1.10 / 3.50	28	10
—	35.15 / 38.75	—	—	145	3.45	2.68 / 4.45	5	2
—	31.20 / 35.40	—	—	150	—	3.60 / 6.45	—	2
—	29.40 / 33.50	—	—	152.5	—	3.30 / 7.40	—	5
—	27.75 / 31.50	—	—	155	—	4.20 / 8.05	—	35
—	26.30 / 29.85	—	1	157.5	6.84	6.05 / 8.10	3	5
26.60	24.70 / 28.20	1	—	160	8.02	6.40 / 9.15	2	5
—	21.70 / 25.20	—	—	165	9.19	8.40 / 11.30	13	5
—	20.00 / 23.80	—	—	167.5	—	9.50 / 12.10	—	2
19.80	18.65 / 22.50	2	2	170	11.78	11.60 / 14.25	134	8
20.00	18.55 / 21.30	1	1	172.5	12.90	11.85 / 14.80	2	—
18.55	16.20 / 20.05	10	5	175	14.12	13.15 / 16.60	63	12
17.37	15.00 / 18.95	6	1	177.5	16.00	14.15 / 17.05	87	3
15.70	14.20 / 17.65	7	—	180	16.77	15.75 / 19.35	1	6
15.25	13.15 / 16.55	2	—	182.5	—	16.95 / 20.30	—	—
14.00	12.10 / 15.80	5	3	185	—	18.50 / 22.30	—	2
—	12.00 / 14.80	—	1	187.5	—	20.50 / 23.70	—	—
12.00	10.25 / 13.00	12	4	190	—	22.15 / 25.35	—	—
—	9.60 / 13.05	—	10	192.5	—	23.85 / 27.05	—	—
9.98	9.00 / 12.35	13	13	195	—	25.70 / 28.95	—	1
—	8.05 / 11.50	—	—	197.5	—	27.50 / 30.70	—	12
9.10	7.60 / 10.40	5	15	200	—	29.35 / 32.55	—	1
7.75	6.25 / 9.70	3	—	205	—	33.10 / 36.35	—	—
7.25	5.70 / 8.70	1	—	207.5	—	35.05 / 38.30	—	—
6.71	5.80 / 7.85	4	4	210	—	37.10 / 40.25	—	—
5.21	5.20 / 6.85	1	1	215	—	41.00 / 44.35	—	—
—	3.40 / 6.40	—	5	220	—	44.90 / 48.55	—	—
A dash means the contract did not trade — not a price of zero.

Oct 16, 202641 days

call OI 706 · put OI 1,229

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	43.70 / 47.10	—	—	135	2.09	1.84 / 2.62	55	35
42.00	39.50 / 42.90	1	2	140	2.86	2.30 / 3.55	44	63
37.50	35.50 / 38.95	1	—	145	3.94	3.45 / 4.30	46	40
34.50	31.75 / 35.10	12	12	150	5.15	5.00 / 5.50	150	126
—	28.30 / 32.05	—	29	155	7.02	6.25 / 7.80	28	149
27.99	25.10 / 28.85	5	30	160	8.45	7.65 / 9.80	81	125
24.04	22.55 / 25.25	3	14	165	10.00	8.85 / 11.75	94	21
22.00	19.95 / 22.65	154	34	170	12.80	12.35 / 13.00	95	104
19.00	17.80 / 19.80	50	23	175	15.07	14.10 / 15.50	28	164
16.90	16.45 / 17.50	657	58	180	17.90	16.10 / 19.90	53	264
15.00	14.40 / 15.55	56	39	185	20.87	19.35 / 22.85	62	74
12.81	12.40 / 13.45	157	44	190	—	22.35 / 26.00	—	53
11.55	10.80 / 12.70	128	32	195	—	25.80 / 29.40	—	5
9.95	9.55 / 10.20	416	139	200	31.20	30.10 / 33.10	1	3
7.25	6.65 / 7.50	149	43	210	—	37.55 / 40.75	—	3
5.45	5.50 / 6.05	110	207	220	46.70	45.85 / 48.70	2	—
A dash means the contract did not trade — not a price of zero.

How to read this chain

Calls sit on the left, puts on the right, and every row is one strike. The highlighted row is the strike closest to spot. Open interest is the number of contracts still outstanding at that strike — positions that exist right now. Volume is how many traded on the session shown. Open interest builds slowly and marks where positioning has accumulated; volume spikes and marks where attention went today.

Strikes with no open interest and no trades on either side are omitted, and the ladder is trimmed to within 25% of spot — the far wings are almost entirely empty and say nothing about positioning.

More on ZS

ZS options score ZS gamma walls ZS max pain ZS IV rank ZS put/call ratio ZS options flow

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Educational, not investment advice. Options involve risk. Open interest is reported with a one-session lag by OCC, so these levels describe positioning as of the last settled session, not live intraday flow.