COST - Options Database

COST

COSTCO WHSL CORP NEW

$998.31 +0.37%

$996.76 (-0.16%)🌙

as of 10/21 06:05 PM

(10/20 18:02) ◀

Wednesday, October 21, 2026 (6:05pm)

▶ (10/22 18:05)

◀ 10/21 18:05 ▶

Option Volume

Detail

ℹ

Current (10/21) 25,551

Calls: 15,506 (61%)

Puts: 10,045 (39%)

Prior (10/20) 33,578

Calls: 17,689 (53%)

Puts: 15,889 (47%)

Current vs Prior -23.91%

Calls: -12.34% (Calls)

Puts: -36.78% (Puts)

Prior 7-Day Total 268,098

Calls: 146,483 (55%)

Puts: 121,615 (45%)

Prior 7-Day Average 38,299

Calls: 20,926 (55%)

Puts: 17,373 (45%)

Current vs Prior 7-Day Avg -33.29%

Calls: -25.90%

Puts: -42.18%

Sentiment BULLISH

Dollar Volume

Detail

ℹ

Current (10/21) $30.50M

Calls: $22.59M (74%)

Puts: $7.92M (26%)

Prior (10/20) $38.69M

Calls: $31.28M (81%)

Puts: $7.41M (19%)

Current vs Prior -21.15%

Calls: -27.78%

Puts: +6.84%

Prior 7-Day Total $328.18M

Calls: $246.36M (75%)

Puts: $81.82M (25%)

Prior 7-Day Average $46.88M

Calls: $35.19M (75%)

Puts: $11.69M (25%)

Current vs Prior 7-Day Avg -34.94%

Calls: -35.82%

Puts: -32.28%

Sentiment BULLISH

Put/Call Ratio

Detail

ℹ

Current (10/21) 0.65

Prior (10/20) 0.90

Current vs Prior -27.88%

Prior 7-Day Average 0.87

Current vs Prior 7-Day Avg -25.65%

Sentiment BULLISH

Open Interest

Detail

ℹ

Current (10/21) 295,301

Calls: 146,304 (50%)

Puts: 148,997 (50%)

Prior (10/20) 286,516

Calls: 142,789 (50%)

Puts: 143,727 (50%)

Current vs Prior +3.07%

Prior 7-Day Total 1,918,364

Calls: 982,949 (51%)

Puts: 935,415 (49%)

Prior 7-Day Average 274,052

Calls: 140,421 (51%)

Puts: 133,630 (49%)

Current vs Prior 7-Day Avg +7.75%

Sentiment BULLISH

Expected Move

Detail

ℹ

WKMO Expiry (10/23) | Next (10/30)Expiry (11/20) | Next (12/18)

Current 1.51% | 2.60%4.53% | 6.98%

Prior 1.76% | 2.92%4.73% | 7.17%

Current vs Prior -14.20% | -11.02%-4.08% | -2.58%

Prior 7-Day Avg 1.74% | 2.81%2.51% | 5.86%

Current vs 7-Day Avg -13.22% | -7.60%+80.48% | +19.24%

Prior 7-Day Eod 1.76% | 2.92%4.73% | 7.17%

Current vs 7-Day Eod -14.20% | -11.02%-4.08% | -2.58%

Sentiment BULLISHBULLISH

Relative Spread

Detail

ℹ

Expiry | Next

Current 31.66% | 16.46%

Calls: 30.00% | 17.55%

Puts: 33.33% | 15.38%

Prior 31.66% | 16.46%

Calls: 30.00% | 17.55%

Puts: 33.33% | 15.38%

Current vs Prior +0.00% | +0.00%

Prior 7-Day Avg 25.74% | 20.50%

Calls: 25.30% | 14.08%

Puts: 26.19% | 26.92%

Current vs 7-Day Avg +23.00% | -19.71%

Liquidity Expensive

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Moderately bullish flow with 74% call dollar volume ($22.59M). Bullish P/C ratio of 0.65. P/C ratio dropping 28% - sentiment shifting bullish.

Smart Money BULLISH

Retail Flow BULLISH

Overall BULLISH

Dollar Volume

Option Volume

Put/Call Ratio

Open Interest

Expected Move

Current BULLISH

Prior BULLISH

7-Day Avg BULLISH

Current BULLISH

Prior NEUTRAL

7-Day Avg NEUTRAL

Current BULLISH

Prior NEUTRAL

7-Day Avg NEUTRAL

Current NEUTRAL

Prior NEUTRAL

7-Day Avg NEUTRAL

Current BEARISH

Prior BULLISH

7-Day Avg BULLISH

📈 Options Analysis

🎯 Tightest Spreads

💰 Best Value Under $1

📊 High Delta (ITM)

🔥 High Volume

⏰ Backwardation

📈 Debit Spreads

📉 Credit Spreads

📅 Calendar Spreads

⚡ Straddles

🔀 Strangles

🦅 Iron Condors

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⚖️ Ratio Spreads

🛡️ Covered Calls

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Tightest Spreads

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Best Value <$1

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Ratio Spreads

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Covered Calls

Options with the tightest bid-ask spreads (<10%). Lower spreads = better fills and less slippage. Showing top 93 of results (avg 7.2%, best 3.9%)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$800.00	Nov 20	197.10	204.85	$200.98	3.9%	--	1.00	49
$880.00	Nov 20	119.20	124.10	$121.65	4.0%	--	0.94	54
$955.00	Oct 23	42.95	44.75	$43.85	4.1%	14	0.99	170
$820.00	Nov 20	176.85	184.55	$180.70	4.3%	--	1.00	20
$890.00	Nov 20	109.45	114.30	$111.88	4.3%	--	0.94	48

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$1150.00	Oct 23	147.10	154.55	$150.82	4.9%	10	1.00	--
$1145.00	Oct 23	142.10	149.95	$146.02	5.4%	10	1.00	--
$1095.00	Oct 23	92.85	99.95	$96.40	7.4%	25	1.00	--
$1100.00	Oct 23	97.10	104.95	$101.03	7.8%	25	1.00	--
$1010.00	Nov 27	27.00	29.65	$28.33	9.4%	2	0.57	26

Affordable options under $1.00 per contract. Great for defined-risk strategies with minimal capital. -- found (avg $--, cheapest $--)

No options available for this category

In-the-money options with delta >0.50. Higher probability of profit, lower leverage. 178 found (avg delta 0.84, highest 1.00)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$860.00	Oct 23	135.50	143.25	$139.38	5.6%	--	1.00	12
$880.00	Oct 23	117.20	122.65	$119.93	4.5%	4	1.00	33
$800.00	Nov 20	197.10	204.85	$200.98	3.9%	--	1.00	49
$820.00	Nov 20	176.85	184.55	$180.70	4.3%	--	1.00	20
$840.00	Nov 20	157.10	165.00	$161.05	4.9%	--	1.00	70

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$1015.00	Oct 23	14.45	19.10	$16.77	27.7%	3	1.00	6
$1020.00	Oct 23	17.85	25.25	$21.55	34.3%	--	1.00	102
$1025.00	Oct 23	22.30	30.15	$26.23	29.9%	--	1.00	92
$1070.00	Oct 23	67.10	74.95	$71.03	11.1%	3	1.00	--
$1080.00	Oct 23	77.10	84.95	$81.03	9.7%	6	1.00	--

Most actively traded options today. High liquidity = easy entry/exit. 447 active (total vol 19.6K, top 3.6K)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$1025.00	Oct 23	0.32	0.40	$0.36	22.2%	3.6K	0.05	570
$1015.00	Oct 23	0.99	1.30	$1.15	27.0%	683	0.15	803
$1030.00	Oct 23	0.16	0.26	$0.21	47.6%	626	0.03	2.2K
$1040.00	Oct 23	0.08	0.11	$0.10	30.0%	596	0.01	2.5K
$1020.00	Oct 23	0.57	0.72	$0.65	23.1%	573	0.09	1.1K

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$955.00	Oct 30	0.71	1.62	$1.17	77.8%	418	0.08	115
$980.00	Oct 23	0.70	0.95	$0.83	30.1%	277	0.11	214
$952.50	Oct 30	0.77	1.21	$0.99	44.4%	268	0.07	103
$975.00	Oct 23	0.40	0.58	$0.49	36.7%	230	0.07	288
$830.00	Oct 23	0.00	0.03	$0.02	150.0%	188	0.00	75

Term structure inversion — near-term IV higher than far-term IV at the same strike. Signals expected near-term catalyst or volatility event. 12 strikes (avg 16.3%, max 25.8%)

CALLS (5)

Strike	Near Exp	Far Exp	Near IV	Far IV	Back%	Vol	OI
$990.00	Oct 23	Nov 27	21.6%	17.1%	25.8%	162	594
$1000.00	Oct 23	Nov 27	20.6%	16.8%	22.7%	295	858
$985.00	Oct 23	Nov 27	21.2%	17.7%	19.6%	54	369
$995.00	Oct 23	Nov 27	20.4%	17.0%	19.6%	183	566
$1005.00	Oct 23	Nov 27	20.6%	19.5%	5.9%	89	482

PUTS (5)

Strike	Near Exp	Far Exp	Near IV	Far IV	Back%	Vol	OI
$990.00	Oct 23	Nov 27	21.6%	17.1%	25.8%	203	596
$1000.00	Oct 23	Nov 27	20.6%	16.8%	22.7%	56	175
$985.00	Oct 23	Nov 27	21.2%	17.7%	19.6%	92	466
$995.00	Oct 23	Nov 27	20.4%	17.0%	19.6%	57	78
$1005.00	Oct 23	Nov 27	20.6%	19.5%	5.9%	29	41

Bull call spreads & bear put spreads with the best risk/reward ratios. Pay a debit upfront, defined max loss. 263 found (best R:R 6.46, avg 10.34)

BULL CALL (5)

Buy	Sell	Expiry	Debit	Max Gain	Max Loss	POP	R:R	BE
$960.00	$965.00	Nov 6	$3.15	$1.85	$3.15	84%	0.59	$963.15
$990.00	$995.00	Oct 23	$2.63	$2.37	$2.63	72%	0.90	$992.63
$1020.00	$1030.00	Nov 13	$2.25	$7.75	$2.25	34%	3.44	$1022.25
$1000.00	$1005.00	Nov 13	$1.80	$3.20	$1.80	50%	1.78	$1001.80
$1090.00	$1110.00	Nov 27	$0.43	$19.57	$0.43	7%	45.51	$1090.43

BEAR PUT (5)

Buy	Sell	Expiry	Debit	Max Gain	Max Loss	POP	R:R	BE
$985.00	$980.00	Nov 20	$0.67	$4.33	$0.67	39%	6.46	$984.33
$995.00	$990.00	Nov 6	$1.47	$3.53	$1.47	46%	2.40	$993.53
$995.00	$990.00	Nov 13	$1.50	$3.50	$1.50	46%	2.33	$993.50
$990.00	$985.00	Nov 27	$1.47	$3.53	$1.47	44%	2.40	$988.53
$1005.00	$1000.00	Oct 23	$2.55	$2.45	$2.55	70%	0.96	$1002.45

Bear call spreads & bull put spreads collecting premium. Receive credit upfront, profit if stock stays in range. 220 found (best R:R 1.60, avg 0.28)

BEAR CALL (5)

Sell	Buy	Expiry	Credit	Max Gain	Max Loss	POP	R:R	BE
$1110.00	$1120.00	Nov 6	$2.49	$2.49	$7.51	92%	0.33	$1112.49
$1130.00	$1140.00	Oct 30	$2.40	$2.40	$7.60	93%	0.32	$1132.40
$1120.00	$1125.00	Oct 23	$2.27	$2.27	$2.73	93%	0.83	$1122.27
$1180.00	$1190.00	Oct 30	$2.17	$2.17	$7.83	95%	0.28	$1182.17
$1090.00	$1100.00	Nov 6	$2.25	$2.25	$7.75	91%	0.29	$1092.25

BULL PUT (5)

Sell	Buy	Expiry	Credit	Max Gain	Max Loss	POP	R:R	BE
$835.00	$830.00	Oct 23	$3.08	$3.08	$1.92	94%	1.60	$831.92
$870.00	$805.00	Nov 27	$3.40	$3.40	$61.60	92%	0.06	$866.60
$815.00	$810.00	Oct 23	$2.40	$2.40	$2.60	95%	0.92	$812.60
$820.00	$815.00	Nov 6	$2.39	$2.39	$2.61	95%	0.92	$817.61
$885.00	$880.00	Oct 23	$2.41	$2.41	$2.59	93%	0.93	$882.59

Same strike, different expirations. Sell near-term, buy far-term. Profits from time decay differential. 6 found (avg debit $5.41, cheapest $5.27)

CALLS (3)

Strike	Near Exp	Far Exp	Net Debit	Near IV	Far IV
$995.00	Oct 23	Oct 30	$5.41	20.4%	17.7%
$1000.00	Oct 23	Oct 30	$5.48	20.6%	18.9%
$1005.00	Oct 23	Oct 30	$5.30	20.6%	18.9%

PUTS (3)

Strike	Near Exp	Far Exp	Net Debit	Near IV	Far IV
$995.00	Oct 23	Oct 30	$5.27	20.4%	17.7%
$1000.00	Oct 23	Oct 30	$5.43	20.6%	18.9%
$1005.00	Oct 23	Oct 30	$5.58	20.6%	18.9%

Buy call + put at the same strike and expiry. Profits from large moves in either direction. 146 found (cheapest 1.22% of stock, avg 5.45%)

Strike	Expiry	Call$	Put$	Total	BE Low	BE High	Cost%
$1000.00	Oct 23	$5.45	$6.75	$12.20	$987.80	$1012.20	1.22%
$995.00	Oct 23	$8.32	$4.18	$12.50	$982.50	$1007.50	1.25%
$1005.00	Oct 23	$3.43	$9.30	$12.73	$992.27	$1017.73	1.28%
$990.00	Oct 23	$10.95	$2.76	$13.71	$976.29	$1003.71	1.37%
$1010.00	Oct 23	$1.91	$13.00	$14.91	$995.09	$1024.91	1.49%
$985.00	Oct 23	$15.38	$1.51	$16.89	$968.11	$1001.89	1.69%
$1015.00	Oct 23	$1.15	$16.77	$17.92	$997.08	$1032.92	1.80%
$980.00	Oct 23	$20.42	$0.83	$21.25	$958.75	$1001.25	2.13%
$1020.00	Oct 23	$0.65	$21.55	$22.20	$997.80	$1042.20	2.22%
$1000.00	Oct 30	$10.93	$12.18	$23.11	$976.89	$1023.11	2.31%

Buy OTM call + OTM put at different strikes. Cheaper than straddles, needs bigger move to profit. 150 found (cheapest 0.11% of stock, avg 2.24%)

Call K	Put K	Expiry	Call$	Put$	Total	BE Low	BE High
$1020.00	$975.00	Oct 23	$0.65	$0.49	$1.14	$973.86	$1021.14
$1020.00	$980.00	Oct 23	$0.65	$0.83	$1.48	$978.52	$1021.48
$1015.00	$975.00	Oct 23	$1.15	$0.49	$1.64	$973.36	$1016.64
$1015.00	$980.00	Oct 23	$1.15	$0.83	$1.98	$978.02	$1016.98
$1020.00	$985.00	Oct 23	$0.65	$1.51	$2.16	$982.84	$1022.16
$1015.00	$985.00	Oct 23	$1.15	$1.51	$2.66	$982.34	$1017.66
$1010.00	$975.00	Oct 23	$1.91	$0.49	$2.40	$972.60	$1012.40
$1010.00	$980.00	Oct 23	$1.91	$0.83	$2.74	$977.26	$1012.74
$1010.00	$985.00	Oct 23	$1.91	$1.51	$3.42	$981.58	$1013.42
$1020.00	$990.00	Oct 23	$0.65	$2.76	$3.41	$986.59	$1023.41

Sell OTM put spread + OTM call spread. Collect premium, profit if stock stays between breakevens. 399 found (best R:R 14.15, avg credit $1.88)

Put Spread	Call Spread	Expiry	Credit	Max Loss	POP	R:R	BE Low	BE High
810/815	1120/1125	Oct 23	$4.67	$0.33	88%	14.15	$810.33	$1124.67
880/885	1120/1125	Oct 23	$4.68	$0.32	86%	14.62	$880.32	$1124.68
840/845	1120/1125	Oct 23	$3.74	$1.26	89%	2.97	$841.26	$1123.74
830/835	1095/1100	Oct 23	$3.29	$1.71	93%	1.92	$831.71	$1098.29
830/835	1085/1090	Oct 23	$3.29	$1.71	92%	1.92	$831.71	$1088.29
830/835	1065/1070	Oct 23	$3.29	$1.71	92%	1.92	$831.71	$1068.29
830/835	1025/1030	Oct 23	$3.23	$1.77	89%	1.82	$831.77	$1028.23
830/835	1020/1025	Oct 23	$3.37	$1.63	85%	2.07	$831.63	$1023.37
830/835	1005/1010	Oct 23	$4.60	$0.40	60%	11.50	$830.40	$1009.60
805/810	1035/1040	Nov 13	$3.96	$1.04	72%	3.81	$806.04	$1038.96

Buy lower + upper strikes, sell 2x middle strike. Low cost, max profit at the middle strike at expiry. 254 found (best R:R 70.43, cheapest $0.05)

CALLS (5)

Low	Mid	High	Expiry	Debit	Max Gain	POP	R:R
$1060.00	$1080.00	$1100.00	Nov 20	$0.59	$19.41	9%	32.90
$985.00	$990.00	$995.00	Oct 30	$0.11	$4.89	13%	44.45
$1000.00	$1005.00	$1010.00	Oct 23	$0.50	$4.50	25%	9.00
$975.00	$980.00	$985.00	Oct 30	$0.10	$4.90	11%	49.00
$1020.00	$1025.00	$1030.00	Oct 30	$0.10	$4.90	9%	49.00

PUTS (5)

Low	Mid	High	Expiry	Debit	Max Gain	POP	R:R
$1005.00	$1010.00	$1015.00	Oct 23	$0.07	$4.93	30%	70.43
$985.00	$990.00	$995.00	Oct 23	$0.17	$4.83	22%	28.41
$980.00	$985.00	$990.00	Oct 30	$0.15	$4.85	12%	32.33
$965.00	$970.00	$975.00	Nov 13	$0.07	$4.93	7%	70.43
$1030.00	$1035.00	$1040.00	Nov 20	$0.07	$4.93	6%	70.43

Buy 1 option, sell 2 at a different strike (1:2 ratio). Can be entered for a credit. Unlimited risk on naked leg. 321 found (best net $-4.17, 270 credits)

CALLS (5)

Buy K	Sell K	Ratio	Expiry	Net	Max Gain
$1040.00	$1060.00	1:2	Nov 20	-$0.12	$19.88
$1060.00	$1080.00	1:2	Nov 20	-$0.49	$19.51
$1005.00	$1010.00	1:2	Oct 23	-$0.39	$4.61
$1000.00	$1005.00	1:2	Oct 23	-$1.41	$3.59
$1010.00	$1015.00	1:2	Oct 23	-$0.39	$4.61

PUTS (5)

Buy K	Sell K	Ratio	Expiry	Net	Max Gain
$1020.00	$1000.00	1:2	Nov 6	-$4.17	$15.83
$990.00	$985.00	1:2	Oct 23	-$0.26	$4.74
$1000.00	$995.00	1:2	Oct 23	-$1.61	$3.39
$985.00	$980.00	1:2	Oct 23	-$0.15	$4.85
$995.00	$990.00	1:2	Oct 23	-$1.34	$3.66

Sell OTM calls against 100 shares you own. Collect premium for income, capped upside at strike. Yield% = premium/stock price. 69 found (best yield 2.22%, avg 0.70%)

Strike	Expiry	Bid	Delta	OTM%	Yield%	If Called%	Vol	OI
$1000.00	Nov 27	$22.15	0.49	0.2%	2.22%	2.39%	25	205
$1005.00	Nov 27	$19.45	0.46	0.7%	1.95%	2.62%	7	164
$1015.00	Nov 27	$15.45	0.40	1.7%	1.55%	3.22%	3	5
$1010.00	Nov 27	$16.90	0.43	1.2%	1.69%	2.86%	--	18
$1000.00	Nov 20	$20.70	0.49	0.2%	2.07%	2.24%	235	1.7K
$1005.00	Nov 20	$18.30	0.45	0.7%	1.83%	2.50%	35	272
$1020.00	Nov 27	$13.15	0.37	2.2%	1.32%	3.49%	--	16
$1010.00	Nov 20	$16.00	0.42	1.2%	1.60%	2.77%	153	369
$1025.00	Nov 27	$11.70	0.34	2.7%	1.17%	3.85%	1	19
$1020.00	Nov 20	$12.45	0.35	2.2%	1.25%	3.42%	32	854

Current 5-Minute Volume Snapshots

Time (HH:MM)	Total Volume	Call Volume	Put Volume	Volume Change
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Prior's 5-Minute Volume Snapshots

Time (HH:MM)	Total Volume	Call Volume	Put Volume	Volume Change
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Current Put/Call Breakdown

Total Calls 15,506

Total Puts 10,045

Put/Call Ratio 0.65

Net Difference 5,461

Prior's Put/Call Breakdown

Total Calls 17,689

Total Puts 15,889

Put/Call Ratio 0.90

Net Difference 1,800

Prior 7-Day Put/Call Summary

Total Calls 146,483

Total Puts 121,615

Average Put/Call Ratio 0.87

Ratio Trend Falling

Daily Put/Call History (Last 7 Days)

Date	Calls	Puts	Ratio	Net Diff
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Upcoming Earnings - 2 Weeks Prior

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Upcoming Earnings - 1 Week Prior

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Earnings This Week

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Earnings - Day Before / Day After

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Options Activity Around Earnings

Ticker	Earnings Date	Days Away	Call Volume	Put Volume	IV Rank
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Option Volume

Dollar Volume

Put/Call Ratio

Open Interest

Expected Move

Relative Spread

🤖 AI Insights

📈 Options Analysis

Current 5-Minute Volume Snapshots

Prior's 5-Minute Volume Snapshots

Current Put/Call Breakdown

Prior's Put/Call Breakdown

Prior 7-Day Put/Call Summary

Daily Put/Call History (Last 7 Days)

Upcoming Earnings - 2 Weeks Prior

Upcoming Earnings - 1 Week Prior

Earnings This Week

Earnings - Day Before / Day After

Options Activity Around Earnings

Chart Title

Price — Past 7 Days

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