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: Dec 15, 2028
Days to expiration: 796
Share price: $946.92
Put/call ratio (OI): 0.41
Put/call ratio (volume): 0.91
ATM implied volatility: 25.3%
Expected move: ±$354.21
Open interest (C / P): 8.76K / 3.58K

COST options summary

The COST options chain for the December 15, 2028 expiration lists 101 call and 97 put contracts, with 796 days until expiration. Open interest stands at 8,759 calls and 3,580 puts, a put/call ratio of 0.41, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $950.00 strike is 25.3%, which implies the market expects a move of about ±$354.21 (37.4%) in Costco Wholesale stock by expiration.

The most open interest sits at the $1,520.00 call (1.21K contracts) and the $900.00 put (339 contracts).

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

COST options chain · December 15, 2028

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
728	2	50.8%	531.05	525.00	534.00	460.00	0.60	5.95	3.35	29.7%	132	76
80	6	50.3%	495.30	516.00	526.00	470.00	1.76	7.10	3.99	30.0%	45	45
41	1	51.5%	509.00	507.00	517.00	480.00	1.16	7.25	4.58	29.4%	5	62
62	2	50.7%	460.70	499.00	508.00	490.00	3.00	5.20	4.80	26.7%	2	38
102	3	50.3%	475.25	490.40	500.00	500.00	1.86	6.75	5.07	27.4%	1	166
160	11	49.0%	456.80	473.00	483.00	520.00	1.02	8.15	7.26	27.1%	2	3
16	4	47.8%	418.00	457.00	466.00	540.00	2.00	9.25	2.52	26.4%	5	24
21	9	46.5%	424.80	440.00	449.00	560.00	4.90	10.70	12.65	25.9%	2	69
8	2	45.6%	416.41	424.00	433.00	580.00	7.65	14.00	14.56	26.3%	4	37
43	86	44.4%	408.92	407.00	416.00	600.00	9.90	11.70	16.50	23.6%	2	57
5	2	43.9%	359.65	399.00	408.00	610.00	10.45	12.90	17.93	23.6%	30	33
10	18	43.4%	351.70	391.00	400.00	620.00	8.00	17.90	19.85	25.2%	19	21
—	—	—	—	—	—	630.00	12.35	14.65	21.20	23.0%	—	1
8	1	42.4%	340.00	375.00	384.00	640.00	13.70	15.95	16.94	22.9%	2	17
37	10	41.9%	349.87	367.00	376.00	650.00	13.90	17.40	22.35	22.8%	14	17
8	4	41.6%	342.70	359.00	368.50	660.00	15.60	19.00	23.85	22.8%	6	35
3	4	41.2%	356.59	351.50	361.00	670.00	26.00	35.00	24.00	27.5%	—	1
19	1	40.7%	338.80	344.00	353.00	680.00	15.00	21.95	27.60	22.4%	1	43
2	2	40.4%	319.00	336.00	346.00	690.00	19.65	23.40	25.44	22.2%	4	38
15	2	39.9%	334.25	328.00	338.00	700.00	21.25	24.10	26.00	21.7%	3	74
3	2	39.4%	350.00	322.00	330.35	710.00	22.40	26.85	36.86	21.9%	6	11
0	1	45.9%	339.20	342.00	352.00	720.00	24.30	28.45	29.70	21.6%	10	21
5	1	38.7%	271.95	306.50	315.75	730.00	38.30	47.00	36.00	26.0%	10	8
4	1	38.4%	285.25	300.00	309.00	740.00	27.70	32.70	34.50	21.4%	5	38
9	1	38.1%	267.70	292.00	302.00	750.00	29.35	35.35	36.60	21.4%	9	25
3	1	37.5%	265.00	285.00	294.00	760.00	31.65	37.10	48.55	21.1%	3	3
20	4	37.3%	283.10	279.00	287.50	770.00	33.80	39.75	50.55	21.0%	2	12
5	4	37.0%	266.16	271.00	281.00	780.00	36.10	41.30	43.65	20.6%	1	48
3	1	36.7%	253.30	265.00	274.00	790.00	39.70	43.45	48.50	20.4%	2	34
100	172	36.5%	261.51	258.00	268.00	800.00	42.40	45.95	43.75	20.2%	3	53
2	2	36.0%	257.80	252.00	260.50	810.00	44.60	48.95	53.80	20.1%	2	15
26	10	35.9%	233.49	246.00	255.00	820.00	44.00	54.00	53.70	20.4%	6	55
19	1	35.3%	242.47	239.00	247.00	830.00	50.20	55.90	56.90	20.0%	53	190
8	2	35.3%	212.05	233.00	242.00	840.00	53.25	58.80	59.30	19.8%	6	131
62	20	34.9%	214.16	227.00	235.40	850.00	56.75	61.30	61.45	19.5%	15	43
24	8	34.7%	208.45	221.00	229.45	860.00	58.80	66.95	77.75	19.8%	7	9
8	2	34.5%	203.17	215.00	223.55	870.00	62.55	68.40	83.17	19.2%	15	110
68	2	34.2%	206.10	209.00	217.70	880.00	66.40	72.50	78.75	19.1%	10	34
10	2	33.9%	207.52	203.00	211.75	890.00	68.00	77.40	75.17	19.2%	1	34
102	2	33.8%	202.00	198.00	206.40	900.00	73.40	80.90	82.20	18.9%	2	339
93	30	33.5%	185.35	193.00	200.70	910.00	77.95	83.55	91.60	18.5%	10	37
113	2	33.3%	195.30	187.45	195.20	920.00	81.00	89.25	96.15	18.6%	10	21
30	3	33.1%	184.90	182.00	189.95	930.00	84.00	94.00	98.20	18.6%	141	83
34	2	33.1%	172.35	177.00	186.00	940.00	89.00	98.50	102.00	18.4%	1	175
COST $946.92
288	156	33.0%	167.89	172.00	181.00	950.00	95.60	100.15	106.47	17.7%	8	113
23	4	32.7%	171.01	167.00	175.75	960.00	100.05	106.35	118.60	17.8%	1	287
103	25	32.5%	165.43	162.00	170.95	970.00	105.55	109.45	121.25	17.3%	12	67
109	2	32.2%	154.11	158.00	165.20	980.00	110.75	114.65	122.29	17.2%	1	21
16	2	32.3%	137.30	153.00	162.00	990.00	0.00	0.00	124.50	—	1	0
342	88	32.2%	151.25	150.65	158.00	1,000.00	121.05	125.10	125.00	16.8%	1	197
13	1	31.8%	135.62	144.15	151.70	1,010.00	0.00	0.00	142.00	—	1	0
23	2	31.9%	136.70	140.00	149.00	1,020.00	132.00	138.90	165.14	17.0%	6	13
87	1	31.8%	132.35	135.00	145.00	1,030.00	137.00	146.00	170.79	17.1%	71	35
16	1	31.6%	124.38	132.00	140.50	1,040.00	143.00	150.75	177.27	16.7%	24	14
51	3	31.4%	133.00	128.80	136.35	1,050.00	154.00	162.00	182.40	17.5%	1	6
39	4	31.3%	120.90	124.00	132.40	1,060.00	155.50	163.50	174.75	16.4%	2	3
5	2	31.2%	135.17	120.20	128.80	1,070.00	199.00	206.00	165.44	23.0%	1	1
31	10	36.5%	131.20	145.00	155.00	1,080.00	171.00	181.00	211.12	17.0%	3	7
7	8	30.9%	101.72	113.00	120.85	1,090.00	174.00	183.00	216.90	15.9%	2	5
95	2	30.8%	100.00	109.70	117.60	1,100.00	180.50	190.00	196.76	15.7%	6	269
10	2	30.7%	95.40	106.50	113.95	1,110.00	219.00	229.00	191.00	21.9%	1	11
15	4	30.6%	95.13	103.15	111.00	1,120.00	195.65	204.00	235.62	15.4%	2	11
0	2	3.1%	130.50	0.00	0.00	1,130.00	234.00	244.00	204.00	21.9%	1	1
67	2	30.5%	104.10	97.00	104.90	1,140.00	210.00	219.00	219.95	15.1%	2	30
26	48	30.3%	90.28	94.50	101.25	1,150.00	0.00	0.00	236.55	—	2	0
3	2	30.0%	86.59	93.05	97.00	1,160.00	223.00	233.00	261.56	14.4%	2	1
96	27	29.8%	91.60	90.25	93.55	1,170.00	232.00	242.00	257.40	14.5%	12	14
54	90	29.9%	80.52	86.20	91.60	1,180.00	238.50	246.00	252.21	13.1%	—	3
13	6	30.4%	78.95	82.00	92.00	1,190.00	280.00	290.00	265.10	21.7%	1	1
234	4	30.1%	76.45	80.45	87.95	1,200.00	257.00	266.00	310.51	13.8%	2	39
31	2	30.1%	93.67	78.30	86.00	1,210.00	—	—	—	—	—	—
166	3	29.9%	67.71	75.85	82.75	1,220.00	274.65	283.50	317.62	13.6%	2	2
0	1	3.1%	99.00	0.00	0.00	1,230.00	—	—	—	—	—	—
56	23	30.0%	74.33	72.20	79.00	1,240.00	292.15	301.00	318.90	13.3%	13	22
197	2	29.4%	65.67	70.20	73.80	1,250.00	301.00	310.00	333.10	13.1%	2	0
25	14	29.9%	61.22	66.00	74.20	1,260.00	310.00	319.25	342.05	13.1%	2	0
0	2	3.1%	82.00	0.00	0.00	1,270.00	—	—	—	—	—	—
184	2	29.7%	59.10	62.00	69.55	1,280.00	365.50	373.00	320.40	23.5%	4	3
5	2	34.5%	77.92	85.00	92.55	1,290.00	376.00	382.00	324.19	23.6%	4	2
59	2	29.4%	60.43	58.25	64.80	1,300.00	348.25	357.50	372.91	13.2%	2	1
93	1	29.5%	68.90	56.75	63.55	1,310.00	394.00	401.00	339.03	24.0%	—	14
516	18	29.2%	60.00	54.00	60.50	1,320.00	368.00	378.00	412.65	13.9%	2	0
65	10	29.7%	57.30	52.65	61.00	1,330.00	378.00	388.00	412.85	14.2%	2	0
322	4	29.6%	54.83	50.75	59.00	1,340.00	388.00	397.00	393.73	13.8%	4	1
53	2	29.5%	48.40	49.10	57.00	1,350.00	0.00	0.00	403.62	—	2	0
36	3	29.2%	52.78	49.25	54.25	1,360.00	408.00	418.00	433.21	14.9%	2	0
37	2	29.3%	50.27	47.75	53.20	1,370.00	418.50	427.00	409.67	14.5%	2	0
156	2	29.0%	47.43	46.70	50.35	1,380.00	428.00	437.00	480.06	14.7%	2	0
10	2	29.4%	48.00	44.25	51.00	1,390.00	438.00	447.00	428.54	14.9%	2	0
163	2	29.4%	45.00	42.40	49.60	1,400.00	448.00	457.20	434.38	15.3%	21	0
6	10	29.2%	57.40	41.70	47.25	1,410.00	0.00	0.00	464.28	—	12	0
179	2	28.7%	42.80	39.60	44.00	1,420.00	0.00	0.00	472.08	—	22	0
261	12	28.9%	38.40	39.60	43.55	1,430.00	—	—	—	—	—	—
50	24	28.7%	39.62	38.40	41.80	1,440.00	488.00	497.00	517.85	16.0%	20	0
45	58	29.1%	36.05	35.05	42.30	1,450.00	—	—	—	—	—	—
66	1	29.3%	37.11	34.10	41.65	1,460.00	508.00	518.00	520.53	17.1%	1	0
0	12	6.3%	52.02	0.00	0.00	1,470.00	0.00	0.00	522.85	—	99	0
63	2	28.8%	33.15	32.35	37.50	1,480.00	528.00	538.00	516.75	17.5%	2	0
44	4	29.4%	31.95	31.75	38.90	1,490.00	0.00	0.00	543.40	—	70	0
191	9	29.1%	29.80	30.10	36.60	1,500.00	548.00	558.00	534.28	17.9%	21	0
1,214	18	29.2%	33.35	29.95	35.25	1,520.00	568.00	577.50	613.13	18.0%	2	0
581	4	29.2%	29.10	25.95	33.35	1,540.00	588.00	598.00	589.00	18.7%	2	0

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 December 15, 2028 expiration, the COST put/call ratio based on open interest is 0.41 (3,580 puts vs 8,759 calls), and 0.91 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 December 15, 2028 is about 25.3%, 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.