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 16, 2026
Days to expiration: 6
Share price: $946.92
Put/call ratio (OI): 0.77
Put/call ratio (volume): 0.96
ATM implied volatility: 17.1%
Expected move: ±$20.71
Open interest (C / P): 25.31K / 19.39K

COST options summary

The COST options chain for the October 16, 2026 expiration lists 100 call and 88 put contracts, with 6 days until expiration. Open interest stands at 25,311 calls and 19,394 puts, a put/call ratio of 0.77, which is fairly balanced between calls and puts. At-the-money implied volatility near the $945.00 strike is 17.1%, which implies the market expects a move of about ±$20.71 (2.2%) in Costco Wholesale stock by expiration.

The most open interest sits at the $960.00 call (1.51K contracts) and the $880.00 put (1.45K contracts).

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

COST options chain · October 16, 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
3	1	125.2%	272.60	283.70	292.00	660.00	0.00	0.03	0.01	81.3%	3	203
12	2	115.6%	221.47	263.65	272.00	680.00	0.00	0.37	0.02	94.1%	3	247
29	1	107.2%	244.55	243.70	252.00	700.00	0.00	2.50	0.07	112.3%	6	180
22	1	98.4%	212.38	223.70	232.00	720.00	0.00	3.50	0.02	109.5%	1	107
5	2	94.5%	191.81	213.75	222.00	730.00	0.00	0.37	0.01	75.7%	4	26
4	3	86.7%	177.40	208.10	217.00	735.00	0.00	4.90	0.01	109.3%	4	151
32	31	89.9%	154.50	203.70	212.00	740.00	0.00	0.10	0.05	62.9%	6	235
5	—	—	216.08	170.60	178.75	745.00	0.00	2.30	0.10	90.9%	1	108
10	6	—	213.72	165.65	173.70	750.00	0.00	4.90	0.11	102.0%	2	51
9	5	—	206.30	161.00	168.55	755.00	0.00	4.90	0.15	99.6%	12	53
57	20	81.8%	139.96	183.75	192.00	760.00	0.00	0.78	0.01	71.6%	1	221
5	1	—	202.90	151.00	158.90	765.00	0.00	4.90	0.03	94.8%	2	24
5	2	78.0%	174.25	173.80	182.00	770.00	0.00	4.90	0.02	92.5%	3	29
1	—	—	191.93	141.10	148.95	775.00	0.00	4.90	0.07	90.1%	1	91
3	2	73.8%	152.96	163.80	172.00	780.00	0.00	0.31	0.02	57.0%	17	281
2	1	—	165.82	131.20	139.25	785.00	0.00	4.90	0.01	85.4%	2	178
1	1	69.7%	143.00	153.80	162.00	790.00	0.00	4.90	0.03	83.1%	2	67
—	—	—	—	—	—	795.00	0.00	0.03	0.03	43.8%	702	54
31	1	65.6%	153.00	143.80	152.00	800.00	0.00	3.80	0.93	74.3%	3	891
2	1	63.5%	125.00	138.80	147.00	805.00	0.00	0.20	1.30	50.2%	1	149
—	—	—	—	—	—	810.00	0.00	1.91	2.45	61.3%	1	139
1	—	—	148.30	105.10	110.55	815.00	0.00	4.90	2.45	71.4%	1	102
31	3	57.2%	127.03	123.75	132.00	820.00	0.00	0.70	0.19	54.2%	1	516
1	1	54.6%	98.53	118.65	127.00	825.00	0.00	0.24	0.02	44.5%	5	164
9	17	53.6%	106.00	113.85	122.00	830.00	0.00	0.05	0.02	35.5%	14	240
6	1	51.6%	98.08	108.85	117.00	835.00	0.00	4.90	0.08	62.2%	15	143
21	2	68.1%	109.86	103.85	111.00	840.00	0.02	0.06	0.03	33.3%	3	417
7	1	62.8%	100.68	98.85	105.40	845.00	0.00	3.80	0.03	54.3%	12	258
38	2	61.3%	97.25	93.85	100.60	850.00	0.01	1.00	0.05	45.5%	64	1,081
31	1	53.3%	70.00	89.05	94.45	855.00	0.00	0.87	0.05	42.3%	25	210
40	2	49.1%	89.86	84.10	89.10	860.00	0.02	0.79	0.07	39.6%	35	557
19	1	59.1%	80.13	78.90	86.95	865.00	0.01	0.13	0.06	28.4%	3	340
38	1	49.2%	75.03	73.85	80.10	870.00	0.02	0.22	0.05	28.8%	27	601
11	1	54.0%	74.17	68.90	77.00	875.00	0.00	0.79	0.04	33.7%	36	332
59	1	51.3%	64.79	64.70	72.00	880.00	0.03	0.11	0.09	23.1%	88	1,445
114	1	42.0%	60.18	59.00	65.15	885.00	0.05	0.28	0.09	24.7%	40	529
260	3	45.9%	57.12	55.45	62.00	890.00	0.08	1.08	0.18	29.6%	403	610
152	3	37.3%	49.76	49.00	55.25	895.00	0.00	0.95	0.15	26.8%	101	353
380	3	43.2%	47.35	44.80	53.00	900.00	0.19	0.35	0.26	20.2%	202	1,363
509	25	40.3%	42.00	39.55	48.00	905.00	0.09	0.51	0.36	19.7%	44	311
190	53	27.6%	38.32	34.45	39.65	910.00	0.43	1.00	0.51	20.7%	184	934
250	10	30.4%	36.92	30.40	36.50	915.00	0.65	0.86	0.74	17.8%	263	388
63	46	25.2%	28.60	28.75	32.65	917.50	0.74	1.09	0.91	17.8%	63	104
553	14	23.6%	28.81	26.90	30.10	920.00	1.08	1.21	1.12	17.2%	239	835
401	12	25.4%	24.00	22.10	26.90	925.00	1.63	1.80	1.65	16.8%	190	564
480	129	21.5%	21.08	18.30	21.60	930.00	2.28	2.90	2.51	17.2%	101	384
519	29	21.3%	16.75	15.15	18.05	935.00	3.15	4.20	3.65	17.2%	95	775
863	159	18.6%	13.07	11.90	13.55	940.00	5.00	6.35	5.10	18.1%	102	523
549	302	17.2%	10.25	9.25	10.00	945.00	7.25	7.90	7.45	16.9%	144	264
COST $946.92
1,117	456	17.4%	7.30	6.05	7.65	950.00	9.05	10.45	9.96	16.8%	60	469
483	98	17.9%	5.30	5.00	5.90	955.00	10.05	15.40	13.81	20.7%	12	84
1,507	234	17.0%	3.75	3.55	3.90	960.00	13.45	18.80	17.32	21.0%	12	179
737	141	17.6%	2.57	2.12	2.94	965.00	16.90	23.00	21.80	22.4%	5	379
780	355	17.3%	1.69	1.50	1.88	970.00	21.70	29.00	22.22	27.7%	300	347
485	169	17.9%	1.09	0.66	1.40	975.00	24.75	33.35	30.20	29.0%	1	61
592	106	17.3%	0.75	0.62	0.78	980.00	30.65	38.25	35.17	31.5%	2	15
406	68	18.1%	0.50	0.41	0.60	985.00	34.25	43.00	40.34	33.5%	2	11
354	27	18.5%	0.36	0.29	0.42	990.00	38.95	48.00	40.26	36.0%	2	6
179	43	19.4%	0.27	0.16	0.33	995.00	44.00	52.90	77.46	38.2%	1	0
1,326	222	23.0%	0.18	0.17	0.55	1,000.00	49.00	56.15	78.00	35.0%	1	2
255	48	26.6%	0.15	0.00	0.80	1,005.00	55.40	62.20	101.41	40.7%	1	2
503	315	21.4%	0.12	0.00	0.15	1,010.00	59.25	66.80	70.61	41.6%	1	1
483	21	25.5%	0.09	0.07	0.32	1,015.00	64.25	73.00	90.70	47.8%	1	1
367	71	23.4%	0.08	0.05	0.12	1,020.00	69.25	77.65	95.72	48.9%	1	0
95	99	25.9%	0.13	0.04	0.17	1,025.00	74.15	82.60	79.90	50.8%	3	1
258	31	31.2%	0.16	0.00	0.42	1,030.00	79.20	86.45	105.72	48.6%	1	0
218	10	27.1%	0.07	0.02	0.11	1,035.00	84.25	93.00	115.18	56.5%	1	0
456	35	29.2%	0.03	0.01	0.14	1,040.00	89.25	98.00	137.80	58.5%	5	0
186	3	35.2%	0.06	0.02	0.39	1,045.00	0.00	0.00	106.75	—	1	0
1,026	12	36.6%	0.05	0.02	0.39	1,050.00	130.90	138.60	101.00	130.3%	1	3
867	4	31.7%	0.10	0.02	0.10	1,055.00	135.00	143.55	108.35	132.0%	19	2
301	13	31.6%	0.04	0.01	0.07	1,060.00	109.00	118.00	128.42	66.5%	1	0
104	26	33.3%	0.09	0.01	0.08	1,065.00	0.00	0.00	106.10	—	7	0
161	13	35.0%	0.05	0.01	0.09	1,070.00	120.05	126.95	153.00	66.0%	6	0
260	42	43.6%	0.02	0.00	0.39	1,075.00	155.55	163.50	126.30	143.0%	—	0
288	13	38.1%	0.06	0.01	0.11	1,080.00	100.70	106.35	112.45	—	—	1
194	6	38.4%	0.02	0.01	0.09	1,085.00	0.00	0.00	62.65	—	—	0
270	57	47.4%	0.01	0.00	0.38	1,090.00	116.15	123.45	155.80	—	2	1
169	9	37.5%	0.01	0.00	0.04	1,095.00	0.00	0.00	62.80	—	—	0
638	5	39.4%	0.03	0.00	0.05	1,100.00	150.55	158.00	150.13	60.0%	1	1
215	4	41.8%	0.01	0.00	0.07	1,105.00	—	—	—	—	—	—
166	1	42.2%	0.03	0.00	0.06	1,110.00	—	—	—	—	—	—
86	6	73.8%	0.05	0.00	4.90	1,115.00	—	—	—	—	—	—
309	49	46.8%	0.04	0.00	0.10	1,120.00	170.10	178.00	169.45	63.5%	1	0
322	9	53.4%	0.03	0.00	0.15	1,140.00	163.20	173.00	198.32	—	2	0
294	5	49.2%	0.03	0.00	0.03	1,160.00	0.00	0.00	101.93	—	—	0
126	6	54.3%	0.01	0.00	0.08	1,180.00	0.00	0.00	116.21	—	—	0
754	1	55.9%	0.05	0.00	0.05	1,200.00	249.00	258.00	254.92	74.8%	1	0
241	1	59.4%	0.04	0.00	0.05	1,220.00	0.00	0.00	215.50	—	—	0
383	3	84.1%	0.01	0.00	0.88	1,240.00	263.25	273.00	297.88	—	2	0
547	62	80.0%	0.01	0.00	0.38	1,260.00	—	—	—	—	—	—
138	12	83.1%	0.01	0.00	0.35	1,280.00	—	—	—	—	—	—
172	10	69.5%	0.01	0.00	0.03	1,300.00	0.00	0.00	219.20	—	—	0
159	2	77.0%	0.01	0.00	0.06	1,320.00	—	—	—	—	—	—
78	4	75.8%	0.06	0.00	0.03	1,340.00	—	—	—	—	—	—
34	5	78.9%	0.01	0.00	0.03	1,360.00	—	—	—	—	—	—
45	16	142.7%	0.19	0.00	4.90	1,380.00	—	—	—	—	—	—
47	1	91.4%	0.06	0.00	0.08	1,400.00	—	—	—	—	—	—
28	10	151.3%	0.12	0.00	4.90	1,420.00	—	—	—	—	—	—
31	3	155.5%	0.07	0.00	4.90	1,440.00	—	—	—	—	—	—
40	3	90.6%	0.02	0.00	0.02	1,460.00	—	—	—	—	—	—
198	10	95.3%	0.03	0.00	0.03	1,480.00	—	—	—	—	—	—

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 16, 2026 expiration, the COST put/call ratio based on open interest is 0.77 (19,394 puts vs 25,311 calls), and 0.96 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 16, 2026 is about 17.1%, 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.