Costco Wholesale (COST) Options Chain

NASDAQ: COSTConsumer DiscretionaryDepartment/Specialty Retail StoresUSD

946.92-1.00 (-0.11%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Expiration date

Expiration: Oct 23, 2026
Days to expiration: 12
Share price: $946.92
Put/call ratio (OI): 0.96
Put/call ratio (volume): 0.66
ATM implied volatility: 20.4%
Expected move: ±$35.03
Open interest (C / P): 6.33K / 6.05K

COST options summary

The COST options chain for the October 23, 2026 expiration lists 90 call and 76 put contracts, with 12 days until expiration. Open interest stands at 6,327 calls and 6,055 puts, a put/call ratio of 0.96, which is fairly balanced between calls and puts. At-the-money implied volatility near the $945.00 strike is 20.4%, which implies the market expects a move of about ±$35.03 (3.7%) in Costco Wholesale stock by expiration.

The most open interest sits at the $1,200.00 call (284 contracts) and the $760.00 put (428 contracts).

Summary generated from market data by MetaCap's automated system. Methodology

COST options chain · October 23, 2026

COST calls and puts by strike price. Shaded cells are in the money.
Calls							Puts
OI	Vol	IV	Last	Bid	Ask	Strike	Bid	Ask	Last	IV	Vol	OI
—	—	—	—	—	—	540.00	0.00	0.11	0.03	99.8%	1	24
—	—	—	—	—	—	550.00	0.00	0.12	0.05	97.7%	2	8
—	—	—	—	—	—	560.00	0.00	0.12	0.01	94.5%	1	133
—	—	—	—	—	—	570.00	0.00	0.12	0.06	91.4%	6	182
—	—	—	—	—	—	580.00	0.00	0.12	0.05	88.7%	3	20
—	—	—	—	—	—	590.00	0.00	0.12	0.06	85.7%	—	3
—	—	—	—	—	—	600.00	0.00	4.90	0.01	131.9%	1	154
4	—	113.3%	291.22	334.15	342.05	610.00	0.00	0.10	0.02	78.9%	2	10
1	1	109.9%	303.07	324.20	332.05	620.00	0.00	4.90	0.02	123.7%	4	11
2	—	106.3%	271.27	314.20	322.05	630.00	0.00	4.90	0.46	119.7%	13	35
—	—	—	—	—	—	640.00	0.00	4.90	0.05	115.7%	6	23
1	1	99.7%	273.15	294.25	302.10	650.00	0.00	0.75	0.50	84.3%	1	2
—	—	—	—	—	—	660.00	0.00	0.10	0.01	65.6%	1	79
—	—	—	—	—	—	670.00	0.00	4.90	0.04	104.1%	6	37
2	—	89.8%	221.47	264.30	272.15	680.00	0.00	4.90	0.01	100.3%	7	16
4	3	86.4%	212.22	254.30	262.15	690.00	0.00	4.90	0.01	96.5%	1	16
6	—	83.0%	202.22	244.30	252.15	700.00	0.00	4.90	0.07	92.8%	5	32
3	—	79.9%	192.40	234.30	242.20	710.00	0.00	4.90	2.13	89.2%	1	7
—	—	—	—	—	—	720.00	0.00	0.18	0.32	53.8%	8	31
—	—	—	—	—	—	725.00	0.00	4.90	0.05	83.7%	1	5
—	—	—	—	—	—	730.00	0.00	4.90	0.01	82.0%	3	148
—	—	—	—	—	—	735.00	0.00	4.90	0.04	80.2%	2	86
—	—	—	—	—	—	740.00	0.00	4.90	0.12	78.4%	7	52
—	—	—	—	—	—	745.00	0.01	1.08	0.09	59.4%	301	109
—	—	—	—	—	—	750.00	0.00	4.90	0.05	74.8%	1	38
1	—	64.3%	153.40	184.40	192.30	760.00	0.00	2.95	0.04	64.7%	8	428
—	—	—	—	—	—	770.00	0.00	4.90	0.05	67.9%	1	10
—	—	—	—	—	—	780.00	0.00	4.90	0.05	64.4%	1	48
—	—	—	—	—	—	785.00	0.00	2.55	0.01	55.1%	1	23
—	—	—	—	—	—	790.00	0.00	4.90	0.26	61.0%	2	68
—	—	—	—	—	—	795.00	0.00	4.90	0.84	59.2%	2	72
0	1	52.2%	122.70	144.50	152.40	800.00	0.02	0.09	0.07	34.7%	144	127
—	—	—	—	—	—	805.00	0.00	4.90	0.05	55.8%	1	30
1	2	60.7%	114.60	134.50	140.90	810.00	0.00	4.90	1.08	54.1%	1	99
1	2	59.0%	109.90	129.55	135.95	815.00	0.00	4.05	0.76	50.3%	1	83
6	1	54.9%	110.00	124.55	130.35	820.00	0.00	0.80	0.18	40.7%	8	68
—	—	—	—	—	—	825.00	0.00	2.19	0.01	47.8%	20	95
—	—	—	—	—	—	830.00	0.00	2.01	0.38	45.3%	2	36
—	—	—	—	—	—	835.00	0.03	1.13	0.08	38.7%	17	52
12	1	47.5%	83.50	104.55	110.30	840.00	0.00	0.36	0.08	30.6%	3	72
2	2	49.6%	64.30	99.65	106.45	845.00	0.00	3.00	0.10	44.4%	4	188
7	4	44.1%	88.49	94.65	100.35	850.00	0.00	4.90	0.15	48.8%	21	108
5	10	42.3%	75.05	89.65	95.35	855.00	0.00	0.53	0.12	28.4%	3	276
10	2	41.2%	66.00	84.70	90.55	860.00	0.05	0.25	0.13	24.1%	11	339
20	26	37.9%	63.10	79.75	85.10	865.00	0.05	1.12	0.14	29.6%	52	112
16	28	37.2%	62.20	74.80	80.45	870.00	0.08	0.93	0.22	27.0%	50	141
46	52	35.5%	54.15	69.85	75.50	875.00	0.12	0.36	0.12	21.5%	16	121
33	58	34.0%	48.62	66.30	70.60	880.00	0.00	1.41	0.42	26.3%	7	147
162	1	33.9%	64.00	60.10	66.30	885.00	0.28	1.67	0.54	25.8%	4	87
20	1	36.0%	32.87	55.15	63.05	890.00	0.41	0.79	0.80	20.3%	45	152
39	1	29.3%	54.00	50.35	56.00	895.00	0.36	0.95	0.80	19.6%	12	66
263	1	28.5%	48.36	47.00	51.50	900.00	0.78	1.00	1.00	18.3%	42	128
84	2	26.4%	31.95	42.30	46.50	905.00	0.99	1.85	1.35	19.7%	37	191
89	10	22.2%	45.51	37.75	40.50	910.00	1.50	1.94	1.72	18.2%	85	237
132	1	24.9%	35.13	33.40	37.85	915.00	2.09	2.96	2.29	18.9%	50	93
138	1	23.6%	30.10	29.00	33.40	920.00	2.86	3.40	3.08	17.8%	57	262
75	8	25.7%	24.27	25.20	31.15	925.00	3.75	4.75	4.50	18.2%	27	233
92	64	23.3%	22.60	23.10	26.30	930.00	4.40	6.25	5.70	18.4%	22	87
74	54	21.7%	19.28	19.15	22.05	935.00	4.00	8.20	7.23	18.8%	13	206
228	70	21.0%	16.80	16.00	18.65	940.00	7.85	9.30	10.12	17.5%	2	76
103	110	22.1%	12.95	13.60	16.75	945.00	9.70	12.35	10.40	18.7%	33	36
COST $946.92
192	57	19.6%	11.80	10.40	12.55	950.00	12.10	14.40	13.26	17.9%	2	26
78	307	19.1%	9.23	7.50	10.05	955.00	13.65	18.75	18.26	20.0%	1	110
206	15	19.1%	7.55	6.50	8.15	960.00	18.00	20.65	23.95	18.2%	2	15
179	29	18.8%	5.50	5.45	6.35	965.00	19.90	24.60	28.00	19.1%	2	16
127	22	18.5%	4.15	4.00	4.85	970.00	24.55	29.95	26.43	21.9%	1	12
116	25	19.5%	3.29	3.00	4.30	975.00	26.40	34.10	61.99	22.6%	—	2
114	39	19.7%	2.39	1.68	3.45	980.00	31.20	37.00	32.00	20.7%	1	12
41	8	19.4%	1.95	1.48	2.53	985.00	34.75	42.95	62.05	24.5%	—	1
95	11	18.5%	1.55	1.33	1.63	990.00	39.70	47.45	48.10	25.3%	3	2
48	40	19.3%	1.22	0.91	1.42	995.00	44.45	52.20	63.39	26.5%	1	1
142	57	19.4%	1.01	0.74	1.08	1,000.00	49.30	57.00	99.40	27.8%	—	0
10	6	22.2%	0.66	0.31	1.42	1,005.00	—	—	—	—	—	—
41	2	24.2%	0.91	0.12	1.60	1,010.00	59.25	66.85	110.75	30.7%	—	0
46	2	23.1%	0.91	0.10	1.02	1,015.00	—	—	—	—	—	—
91	2	23.3%	0.35	0.05	0.80	1,020.00	69.05	77.00	115.70	34.2%	—	0
178	16	23.2%	0.32	0.18	0.60	1,025.00	74.05	81.80	123.10	35.2%	—	0
90	30	24.1%	0.38	0.16	0.56	1,030.00	79.05	86.75	114.65	36.5%	2	0
138	26	24.9%	0.32	0.00	0.52	1,035.00	—	—	—	—	—	—
247	4	26.4%	0.19	0.05	0.58	1,040.00	—	—	—	—	—	—
117	2	44.4%	0.24	0.00	4.90	1,045.00	—	—	—	—	—	—
71	14	45.9%	0.25	0.00	4.90	1,050.00	—	—	—	—	—	—
76	42	47.3%	0.17	0.00	4.90	1,055.00	—	—	—	—	—	—
68	20	48.8%	0.15	0.00	4.90	1,060.00	—	—	—	—	—	—
52	6	33.4%	0.12	0.00	0.76	1,065.00	—	—	—	—	—	—
77	12	28.4%	0.01	0.00	0.21	1,070.00	—	—	—	—	—	—
89	16	37.4%	0.07	0.06	1.02	1,075.00	—	—	—	—	—	—
35	9	33.9%	0.32	0.04	0.47	1,080.00	—	—	—	—	—	—
48	19	29.6%	0.09	0.01	0.14	1,085.00	—	—	—	—	—	—
37	20	45.7%	0.05	0.00	1.89	1,090.00	—	—	—	—	—	—
21	5	39.1%	0.01	0.00	0.69	1,095.00	—	—	—	—	—	—
154	6	32.0%	0.11	0.01	0.13	1,100.00	—	—	—	—	—	—
159	14	32.5%	0.06	0.05	0.12	1,105.00	—	—	—	—	—	—
150	15	36.0%	0.06	0.03	0.23	1,110.00	—	—	—	—	—	—
98	19	34.5%	0.05	0.03	0.13	1,115.00	—	—	—	—	—	—
198	13	33.9%	0.09	0.05	0.09	1,120.00	—	—	—	—	—	—
9	4	35.1%	0.05	0.02	0.10	1,125.00	—	—	—	—	—	—
108	53	42.9%	0.04	0.01	0.43	1,130.00	—	—	—	—	—	—
29	8	35.8%	0.04	0.02	0.08	1,135.00	—	—	—	—	—	—
127	3	37.1%	0.05	0.01	0.09	1,140.00	—	—	—	—	—	—
14	3	35.7%	0.09	0.02	0.05	1,145.00	—	—	—	—	—	—
12	11	38.2%	0.05	0.01	0.08	1,150.00	—	—	—	—	—	—
51	9	37.1%	0.03	0.01	0.04	1,160.00	—	—	—	—	—	—
19	4	41.1%	0.02	0.01	0.08	1,170.00	—	—	—	—	—	—
32	2	43.2%	0.02	0.00	0.09	1,180.00	—	—	—	—	—	—
7	4	42.9%	0.02	0.00	0.06	1,190.00	—	—	—	—	—	—
284	11	50.5%	0.02	0.00	0.43	1,200.00	—	—	—	—	—	—
20	8	74.4%	0.02	0.00	4.90	1,210.00	—	—	—	—	—	—
238	244	45.5%	0.01	0.00	0.03	1,230.00	—	—	—	—	—	—
1	1	48.8%	0.01	0.00	0.05	1,240.00	—	—	—	—	—	—
8	4	50.2%	0.01	0.00	0.05	1,250.00	—	—	—	—	—	—
5	4	59.4%	0.05	0.00	0.42	1,260.00	—	—	—	—	—	—
10	5	48.8%	0.02	0.00	0.02	1,270.00	—	—	—	—	—	—
16	—	51.0%	0.04	0.00	0.05	1,280.00	—	—	—	—	—	—
15	2	51.2%	0.03	0.00	0.02	1,290.00	—	—	—	—	—	—
11	2	53.3%	0.04	0.00	0.05	1,300.00	—	—	—	—	—	—

In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.

Frequently asked questions

What is the COST put/call ratio?

For the October 23, 2026 expiration, the COST put/call ratio based on open interest is 0.96 (6,055 puts vs 6,327 calls), and 0.66 based on today's volume. A ratio above 1 means more puts than calls.

What is COST's implied volatility?

At-the-money implied volatility for COST options expiring October 23, 2026 is about 20.4%, an annualized estimate of how much the market expects Costco Wholesale stock to move.

How many COST option expiration dates are there?

COST has 18 listed expiration dates, from Oct 16, 2026 to Jan 19, 2029.

What does "in the money" mean?

A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.