COST option chain

Strikes around the forward, as they were quoted at the close

Data as of 24 September 2026 (end of day)

2026-09-25(1 day)ATM 75.11%±35.35skew -2.74

Calls					Strike	Puts
Volume	Open int	Bid	Ask	IV		IV	Bid	Ask	Open int	Volume
39	335	$28.60	$33.85	—	$870.00	72.79%	$3.55	$3.70	769	1,531
5	270	$27.60	$30.45	—	$875.00	73.43%	$4.65	$5.00	394	822
218	85	$24.00	$26.55	—	$880.00	73.42%	$5.90	$6.45	912	1,122
119	48	$20.75	$22.95	—	$885.00	73.96%	$7.55	$8.20	572	368
32	94	$19.45	$21.65	—	$887.50	74.92%	$8.60	$9.30	375	488
265	200	$17.95	$19.95	—	$890.00	74.20%	$9.50	$10.10	1,391	699
44	124	$16.50	$18.30	—	$892.50	75.30%	$10.35	$11.75	272	144
111	218	$15.55	$17.20	—	$895.00	74.79%	$11.50	$12.65	635	191
186	252	$14.20	$15.60	—	$897.50	74.71%	$12.75	$13.75	272	640
1,469	765	$13.10	$14.20	75.18%	$900.00	—	$14.10	$15.10	949	900
397	106	$12.15	$13.35	76.62%	$902.50	—	$15.55	$17.40	46	93
306	463	$10.95	$11.95	75.55%	$905.00	—	$16.10	$18.60	355	115
225	98	$10.10	$11.00	76.26%	$907.50	—	$16.65	$21.00	52	38
714	516	$9.20	$9.80	75.79%	$910.00	—	$19.50	$22.00	482	133
350	64	$8.20	$9.00	75.79%	$912.50	—	$20.65	$23.65	79	34
443	513	$7.40	$8.10	75.70%	$915.00	—	$22.70	$24.20	286	46
158	119	$6.65	$7.55	76.44%	$917.50	—	$23.65	$26.40	79	16
809	997	$6.05	$6.50	75.77%	$920.00	—	$26.50	$27.90	304	64
157	185	$5.30	$5.95	75.82%	$922.50	—	$27.35	$30.95	68	17
446	512	$4.75	$5.40	76.18%	$925.00	—	$29.80	$32.85	224	36
238	198	$4.20	$4.75	75.85%	$927.50	—	$31.45	$35.35	26	0

Forward $899.05. The 25-delta put carries -2.74 volatility points over the 25-delta call.

2026-10-02(8 days)ATM 33.13%±44.12skew -1.11

Calls					Strike	Puts
Volume	Open int	Bid	Ask	IV		IV	Bid	Ask	Open int	Volume
2	95	$33.60	$38.55	—	$870.00	32.70%	$5.90	$6.50	399	328
2	61	$30.35	$34.00	—	$875.00	33.02%	$7.00	$8.40	206	19
108	37	$27.05	$30.10	—	$880.00	32.77%	$8.65	$9.65	309	194
4	22	$24.00	$27.40	—	$885.00	32.77%	$10.20	$11.65	142	69
27	140	$21.55	$23.40	—	$890.00	31.96%	$11.40	$13.60	217	118
3	—	$19.85	$22.30	—	$892.50	33.30%	$13.40	$15.15	—	27
59	96	$19.20	$20.55	—	$895.00	33.03%	$14.65	$15.90	309	243
24	—	$17.95	$19.40	—	$897.50	33.18%	$15.75	$17.35	—	21
308	282	$17.00	$17.80	33.12%	$900.00	—	$17.00	$18.55	484	176
138	—	$15.30	$17.15	33.15%	$902.50	—	$18.00	$20.35	—	168
122	154	$14.90	$15.50	33.35%	$905.00	—	$19.80	$21.40	209	56
34	—	$13.45	$14.95	33.50%	$907.50	—	$20.25	$22.85	—	9
224	278	$12.55	$13.40	33.11%	$910.00	—	$22.65	$24.30	421	74
11	—	$11.15	$13.05	33.29%	$912.50	—	$23.30	$26.55	—	7
53	308	$10.35	$11.70	32.97%	$915.00	—	$25.70	$27.25	63	19
116	22	$10.00	$11.15	33.80%	$917.50	—	$26.90	$29.90	2	2
114	572	$9.10	$10.25	33.64%	$920.00	—	$29.15	$30.90	439	57
102	11	$8.30	$9.60	33.73%	$922.50	—	$29.60	$34.60	1	0
62	100	$7.70	$8.50	33.46%	$925.00	—	$32.15	$34.25	92	26
22	9	$7.15	$8.20	34.01%	$927.50	—	—	—	—	—
220	513	$6.65	$7.25	33.81%	$930.00	—	$35.80	$39.75	154	2

Forward $899.62. The 25-delta put carries -1.11 volatility points over the 25-delta call.

2026-10-09(15 days)ATM 28.18%±51.46skew -0.07

Calls					Strike	Puts
Volume	Open int	Bid	Ask	IV		IV	Bid	Ask	Open int	Volume
1	3	$39.50	$44.85	—	$865.00	27.61%	$6.25	$7.20	81	13
2	9	$36.45	$40.15	—	$870.00	27.67%	$7.60	$8.50	97	52
0	2	$33.00	$37.70	—	$875.00	27.97%	$9.05	$10.35	105	11
0	14	$29.85	$34.60	—	$880.00	28.08%	$10.80	$12.05	82	26
0	5	$26.35	$30.60	—	$885.00	27.83%	$12.55	$13.65	66	13
32	39	$24.00	$27.15	—	$890.00	28.40%	$14.60	$16.45	85	26
2	—	$22.95	$25.70	—	$892.50	28.52%	$15.45	$17.95	—	3
5	54	$21.55	$24.50	—	$895.00	28.67%	$16.80	$19.10	212	9
6	—	$19.90	$24.70	—	$897.50	28.69%	$17.90	$20.40	—	12
104	104	$19.75	$21.40	—	$900.00	27.64%	$19.25	$20.00	267	54
95	—	$18.70	$20.80	28.18%	$902.50	—	$20.30	$23.05	—	10
34	41	$17.50	$19.00	27.72%	$905.00	—	$21.70	$24.55	84	15
5	—	$15.75	$18.30	27.57%	$907.50	—	$22.30	$26.15	—	4
47	32	$15.30	$16.90	27.77%	$910.00	—	$24.65	$27.25	77	5
77	—	$14.00	$15.95	27.62%	$912.50	—	$25.55	$29.20	—	0
41	48	$12.95	$15.00	27.58%	$915.00	—	$26.75	$30.45	51	9
12	3	$12.45	$14.05	27.87%	$917.50	—	$29.65	$32.45	1	0
35	72	$11.90	$12.85	27.88%	$920.00	—	$30.55	$34.40	114	7
38	85	$10.05	$11.55	27.98%	$925.00	—	$33.75	$37.35	100	12
175	84	$8.95	$9.80	28.05%	$930.00	—	$37.70	$41.45	126	0
44	116	$7.35	$8.40	27.74%	$935.00	—	$40.70	$44.70	6	1

Forward $900.95. The 25-delta put carries -0.07 volatility points over the 25-delta call.

2026-10-16(22 days)ATM 25.32%±55.99skew -0.69

Calls					Strike	Puts
Volume	Open int	Bid	Ask	IV		IV	Bid	Ask	Open int	Volume
0	46	$49.45	$55.00	—	$855.00	24.89%	$5.45	$6.30	229	78
11	41	$45.75	$50.05	—	$860.00	24.86%	$6.70	$7.20	666	113
0	21	$42.05	$47.00	—	$865.00	24.58%	$7.55	$8.45	299	160
1	40	$39.00	$43.00	—	$870.00	24.94%	$9.15	$10.15	596	114
0	18	$35.35	$39.55	—	$875.00	24.80%	$10.65	$11.55	312	78
6	66	$32.70	$35.40	—	$880.00	24.77%	$12.45	$13.15	1,024	322
2	136	$29.00	$32.00	—	$885.00	24.74%	$14.25	$15.10	365	69
4	159	$26.80	$28.55	—	$890.00	24.71%	$16.15	$17.30	578	102
13	171	$24.25	$25.65	—	$895.00	24.87%	$18.55	$19.70	305	25
145	401	$22.05	$23.00	—	$900.00	25.25%	$21.05	$22.75	1,321	157
25	559	$19.30	$21.20	25.36%	$905.00	—	$23.50	$24.90	336	56
67	296	$17.55	$18.50	25.32%	$910.00	—	$26.20	$27.55	784	109
46	224	$15.45	$16.50	25.28%	$915.00	—	$28.80	$30.55	246	30
4	1	$14.50	$15.50	25.24%	$917.50	—	$30.45	$33.05	15	0
146	404	$13.60	$14.55	25.22%	$920.00	—	$31.75	$34.45	817	70
121	396	$11.95	$12.85	25.23%	$925.00	—	$35.25	$37.85	581	32
41	466	$10.50	$11.75	25.56%	$930.00	—	$38.50	$41.85	159	22
64	413	$9.00	$9.85	25.14%	$935.00	—	$42.20	$46.25	626	11
79	689	$7.90	$8.65	25.27%	$940.00	—	$46.70	$49.55	480	1
42	335	$6.85	$7.60	25.36%	$945.00	—	$49.90	$53.65	172	38
184	866	$6.15	$6.65	25.62%	$950.00	—	$54.60	$56.95	391	14

Forward $900.63. The 25-delta put carries -0.69 volatility points over the 25-delta call.

2026-10-23(29 days)ATM 24.06%±61.14skew -0.27

Calls					Strike	Puts
Volume	Open int	Bid	Ask	IV		IV	Bid	Ask	Open int	Volume
4	4	$54.60	$60.70	—	$850.00	23.58%	$5.00	$6.90	87	29
0	1	$51.20	$56.25	—	$855.00	23.70%	$6.50	$7.65	105	35
0	3	$47.80	$53.10	—	$860.00	23.54%	$7.50	$8.75	91	11
0	10	$43.90	$49.35	—	$865.00	23.74%	$8.95	$10.25	49	1
0	2	$39.95	$44.90	—	$870.00	24.08%	$10.30	$12.40	62	3
0	20	$37.30	$41.20	—	$875.00	23.77%	$11.85	$13.55	55	9
2	25	$34.30	$38.30	—	$880.00	23.78%	$13.45	$15.50	69	8
0	149	$31.45	$35.65	—	$885.00	24.01%	$15.85	$17.40	47	7
1	19	$28.40	$31.85	—	$890.00	23.99%	$17.85	$19.55	90	6
6	51	$26.30	$28.95	—	$895.00	24.06%	$19.85	$22.20	118	6
64	272	$24.20	$25.80	—	$900.00	23.91%	$21.85	$24.75	203	69
19	72	$21.80	$23.75	24.08%	$905.00	—	$24.45	$27.45	156	14
11	93	$19.15	$21.10	23.67%	$910.00	—	$26.80	$30.00	34	7
27	41	$17.45	$19.35	24.02%	$915.00	—	$29.35	$34.20	25	16
3	71	$15.75	$16.90	23.87%	$920.00	—	$32.65	$35.40	278	3
8	49	$14.00	$15.40	24.02%	$925.00	—	$35.00	$40.10	210	29
1	56	$12.35	$13.80	24.02%	$930.00	—	$39.35	$43.15	28	1
53	26	$10.90	$12.30	24.03%	$935.00	—	$42.10	$47.65	198	0
18	19	$9.45	$10.75	23.86%	$940.00	—	$46.70	$50.95	36	0
9	24	$8.45	$9.55	24.01%	$945.00	—	$49.80	$54.85	16	0
14	71	$7.30	$8.20	23.82%	$950.00	—	$54.40	$59.30	20	0

Forward $901.71. The 25-delta put carries -0.27 volatility points over the 25-delta call.

2026-10-30(36 days)ATM 23.15%±65.58skew -0.16

Calls					Strike	Puts
Volume	Open int	Bid	Ask	IV		IV	Bid	Ask	Open int	Volume
13	1	$55.85	$61.95	—	$850.00	23.06%	$6.70	$7.90	150	126
0	7	$53.65	$58.05	—	$855.00	23.05%	$7.80	$9.05	71	21
1	7	$50.15	$52.95	—	$860.00	23.27%	$9.00	$10.75	264	23
0	1	$46.00	$50.50	—	$865.00	23.18%	$10.25	$12.15	92	30
0	23	$43.25	$46.95	—	$870.00	23.33%	$11.90	$13.85	51	5
96	59	$39.45	$42.90	—	$875.00	23.42%	$13.50	$15.80	30	18
0	10	$36.75	$40.30	—	$880.00	23.49%	$15.40	$17.70	51	2
3	62	$33.45	$37.20	—	$885.00	23.35%	$17.25	$19.50	20	2
5	44	$30.85	$33.95	—	$890.00	23.26%	$19.05	$21.75	24	6
0	55	$28.00	$31.20	—	$895.00	23.65%	$22.00	$24.20	207	5
77	33	$26.50	$28.15	—	$900.00	23.34%	$23.70	$26.65	230	6
7	37	$23.25	$26.15	23.14%	$905.00	—	$26.60	$29.40	31	7
6	39	$21.15	$24.00	23.26%	$910.00	—	$29.55	$32.25	33	13
3	11	$19.00	$21.65	23.13%	$915.00	—	$32.45	$35.30	19	0
6	17	$17.25	$19.45	23.12%	$920.00	—	$35.35	$38.55	31	0
22	13	$15.30	$17.45	22.98%	$925.00	—	$38.65	$41.95	13	2
5	22	$13.65	$15.70	22.96%	$930.00	—	$41.50	$45.10	6	1
0	3	$12.40	$14.20	23.13%	$935.00	—	$46.00	$48.60	16	2
11	19	$11.20	$12.85	23.28%	$940.00	—	$48.50	$52.00	14	3
1	10	$9.65	$11.40	23.08%	$945.00	—	$53.30	$55.85	51	0
18	58	$8.95	$10.35	23.42%	$950.00	—	$57.20	$59.80	20	24

Forward $902.16. The 25-delta put carries -0.16 volatility points over the 25-delta call.

2026-11-20(57 days)ATM 22.63%±80.79skew +0.35

Calls					Strike	Puts
Volume	Open int	Bid	Ask	IV		IV	Bid	Ask	Open int	Volume
1	3	$59.30	$62.95	—	$855.00	22.67%	$12.30	$13.35	145	25
2	37	$55.75	$59.95	—	$860.00	22.57%	$13.55	$14.80	649	59
0	1	$52.30	$57.05	—	$865.00	22.61%	$14.90	$16.70	61	11
0	14	$49.30	$53.35	—	$870.00	22.50%	$16.40	$18.30	71	28
1	15	$45.90	$49.95	—	$875.00	22.59%	$18.30	$20.25	35	37
11	33	$43.15	$46.30	—	$880.00	22.53%	$20.10	$22.15	456	19
0	19	$40.35	$43.20	—	$885.00	22.68%	$22.50	$24.25	45	30
17	60	$37.35	$40.40	—	$890.00	22.59%	$24.75	$26.10	105	35
6	43	$35.55	$37.50	—	$895.00	22.68%	$27.15	$28.55	57	35
71	266	$32.65	$34.50	—	$900.00	22.45%	$28.95	$30.95	516	28
8	77	$29.70	$33.00	22.63%	$905.00	—	$31.50	$34.00	69	10
35	111	$28.15	$29.90	22.61%	$910.00	—	$34.05	$36.65	104	16
23	119	$25.40	$28.05	22.53%	$915.00	—	$37.20	$39.55	72	8
14	246	$23.75	$25.60	22.53%	$920.00	—	$39.95	$42.50	409	56
8	67	$21.90	$23.85	22.64%	$925.00	—	$42.60	$46.25	36	0
20	105	$20.35	$21.65	22.60%	$930.00	—	$45.85	$49.50	39	4
18	120	$17.95	$20.00	22.37%	$935.00	—	$49.20	$52.90	46	1
24	285	$17.00	$17.95	22.45%	$940.00	—	$53.00	$56.00	401	0
1	152	$15.00	$16.85	22.41%	$945.00	—	$54.90	$59.90	22	0
29	236	$13.90	$15.05	22.37%	$950.00	—	$59.45	$63.55	66	4
6	46	$12.55	$13.70	22.32%	$955.00	—	$63.75	$67.50	1	0

Forward $903.59. The 25-delta put carries +0.35 volatility points over the 25-delta call.

2026-12-18(85 days)ATM 23.30%±101.93skew +0.19

Calls					Strike	Puts
Volume	Open int	Bid	Ask	IV		IV	Bid	Ask	Open int	Volume
1	321	$65.05	$68.40	—	$860.00	23.33%	$19.75	$21.15	649	40
—	—	—	—	—	$865.00	22.90%	$19.90	$23.15	7	0
—	—	—	—	—	$870.00	23.33%	$23.25	$24.80	6	4
1	1	$56.25	$58.85	—	$875.00	—	—	—	—	—
10	291	$53.30	$56.40	—	$880.00	23.32%	$27.30	$28.60	662	21
10	2	$49.75	$52.25	—	$885.00	23.36%	$29.10	$31.15	3	7
3	5	$47.15	$49.80	—	$890.00	23.33%	$31.60	$33.00	0	25
6	4	$44.95	$47.20	—	$895.00	23.22%	$33.85	$35.00	2	11
59	367	$42.05	$44.50	—	$900.00	23.36%	$36.25	$37.90	788	39
1	0	$39.90	$41.85	—	$905.00	23.25%	$38.05	$40.75	15	0
22	0	$37.80	$39.55	23.34%	$910.00	—	$40.85	$43.45	8	4
13	2	$35.15	$37.40	23.25%	$915.00	—	$43.30	$45.95	0	3
40	319	$33.70	$35.20	23.44%	$920.00	—	$46.65	$49.30	380	5
1	0	$30.95	$33.05	23.21%	$925.00	—	—	—	—	—
4	2	$29.05	$31.10	23.24%	$930.00	—	—	—	—	—
3	7	$27.05	$29.20	23.20%	$935.00	—	—	—	—	—
6	512	$25.40	$27.05	23.13%	$940.00	—	$58.10	$62.00	323	3
0	7	$22.70	$25.70	22.93%	$945.00	—	—	—	—	—
21	7	$22.40	$23.95	23.29%	$950.00	—	—	—	—	—
—	—	—	—	—	$955.00	—	$67.70	$72.60	1	0
71	507	$19.15	$20.75	23.13%	$960.00	—	$72.45	$76.15	245	2

Forward $906.49. The 25-delta put carries +0.19 volatility points over the 25-delta call.

How to read this

Calls on the left, puts on the right, the strike between them — the layout every chain uses. Each block is one expiration, and the heading carries its days to expiry, the at-the-money implied volatility, and the one-standard-deviation move that volatility implies over that time.

Only the 21 strikes nearest the forward are stored, which is the part of the board that carries the volume. The shaded side is in the money: below the forward for calls, above it for puts.

Implied volatility is shown on the out-of-the-money side only. An in-the-money option is nearly all intrinsic value quoted on a wide market, so a volatility solved from it would look authoritative and mean very little. The price is still shown, because the price is real; the blank is deliberate.