COST - Options Database

COST

COSTCO WHSL CORP NEW

$910.34 -1.54%

$912.66 (+0.25%)🌙

as of 09/30 11:31 PM

(9/29 18:01) ◀

Wednesday, September 30, 2026 (11:31pm)

▶ (10/1 18:00)

◀ 9/30 23:31 ▶

Option Volume

Detail

ℹ

Current (09/30) 25,975

Calls: 14,466 (56%)

Puts: 11,509 (44%)

Prior (09/29) 26,213

Calls: 15,314 (58%)

Puts: 10,899 (42%)

Current vs Prior -0.91%

Calls: -5.54% (Calls)

Puts: +5.60% (Puts)

Prior 7-Day Total 409,061

Calls: 221,834 (54%)

Puts: 187,227 (46%)

Prior 7-Day Average 58,437

Calls: 31,690 (54%)

Puts: 26,746 (46%)

Current vs Prior 7-Day Avg -55.55%

Calls: -54.35%

Puts: -56.97%

Sentiment BULLISH

Dollar Volume

Detail

ℹ

Current (09/30) $30.85M

Calls: $15.74M (51%)

Puts: $15.11M (49%)

Prior (09/29) $36.45M

Calls: $24.34M (67%)

Puts: $12.11M (33%)

Current vs Prior -15.37%

Calls: -35.33%

Puts: +24.72%

Prior 7-Day Total $520.49M

Calls: $309.27M (59%)

Puts: $211.22M (41%)

Prior 7-Day Average $74.36M

Calls: $44.18M (59%)

Puts: $30.17M (41%)

Current vs Prior 7-Day Avg -58.51%

Calls: -64.38%

Puts: -49.93%

Sentiment BULLISH

Put/Call Ratio

Detail

ℹ

Current (09/30) 0.80

Prior (09/29) 0.71

Current vs Prior +11.79%

Prior 7-Day Average 0.83

Current vs Prior 7-Day Avg -4.70%

Sentiment NEUTRAL

Open Interest

Detail

ℹ

Current (09/30) 162,423

Calls: 85,456 (53%)

Puts: 76,967 (47%)

Prior (09/29) 283,751

Calls: 147,493 (52%)

Puts: 136,258 (48%)

Current vs Prior -42.76%

Prior 7-Day Total 1,988,757

Calls: 1,008,819 (51%)

Puts: 979,938 (49%)

Prior 7-Day Average 284,108

Calls: 144,117 (51%)

Puts: 139,991 (49%)

Current vs Prior 7-Day Avg -42.83%

Sentiment BEARISH

Expected Move

Detail

ℹ

WKMO Expiry (10/02) | Next (10/09)Expiry (10/16) | Next (11/20)

Current 1.44% | 2.65%3.69% | 6.11%

Prior 1.61% | 2.87%3.64% | 6.31%

Current vs Prior -10.70% | -7.74%+1.56% | -3.19%

Prior 7-Day Avg 2.47% | 3.72%3.38% | 6.44%

Current vs 7-Day Avg -41.68% | -28.88%+9.17% | -5.14%

Prior 7-Day Eod 1.61% | 2.87%3.64% | 6.31%

Current vs 7-Day Eod -10.70% | -7.74%+1.56% | -3.19%

Sentiment BULLISHBEARISH

Relative Spread

Detail

ℹ

Expiry | Next

Current 21.30% | 23.53%

Calls: 21.78% | 11.48%

Puts: 20.83% | 35.58%

Prior 21.30% | 23.53%

Calls: 21.78% | 11.48%

Puts: 20.83% | 35.58%

Current vs Prior +0.00% | +0.00%

Prior 7-Day Avg 22.21% | 14.46%

Calls: 21.32% | 9.38%

Puts: 23.12% | 19.53%

Current vs 7-Day Avg -4.12% | +62.76%

Liquidity Expensive

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🤖 AI Insights

Declining open interest (down 43%) indicates positions being closed.

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 BULLISH

7-Day Avg NEUTRAL

Current NEUTRAL

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

🦋 Butterflies

⚖️ Ratio Spreads

🛡️ Covered Calls

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Tightest Spreads

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Best Value <$1

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High Delta

⚖️

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 18 of results (avg 6.8%, best 4.3%)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$735.00	Oct 16	173.90	181.55	$177.73	4.3%	3	1.00	--
$800.00	Oct 2	110.30	115.25	$112.78	4.4%	3	1.00	--
$780.00	Oct 9	130.10	136.00	$133.05	4.4%	4	0.96	--
$800.00	Oct 16	110.20	115.80	$113.00	5.0%	1	1.00	--
$790.00	Oct 9	119.60	126.05	$122.82	5.3%	2	1.00	--

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$1000.00	Oct 16	86.05	91.60	$88.82	6.2%	1	1.00	--
$1000.00	Oct 2	85.00	91.60	$88.30	7.5%	9	1.00	--
$1000.00	Oct 30	85.20	92.15	$88.68	7.8%	1	0.94	--
$970.00	Oct 2	56.25	61.05	$58.65	8.2%	1	1.00	--
$915.00	Nov 6	22.10	24.40	$23.25	9.9%	389	0.51	9

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. 107 found (avg delta 0.77, highest 1.00)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$800.00	Oct 2	110.30	115.25	$112.78	4.4%	3	1.00	--
$830.00	Oct 2	78.85	85.75	$82.30	8.4%	2	1.00	11
$790.00	Oct 9	119.60	126.05	$122.82	5.3%	2	1.00	--
$735.00	Oct 16	173.90	181.55	$177.73	4.3%	3	1.00	--
$800.00	Oct 16	110.20	115.80	$113.00	5.0%	1	1.00	--

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$930.00	Oct 2	16.55	22.00	$19.27	28.3%	37	1.00	160
$935.00	Oct 2	20.30	25.55	$22.93	22.9%	2	1.00	--
$940.00	Oct 2	26.15	31.60	$28.88	18.9%	3	1.00	66
$945.00	Oct 2	30.00	38.00	$34.00	23.5%	6	1.00	--
$955.00	Oct 2	41.10	46.55	$43.83	12.4%	5	1.00	--

Most actively traded options today. High liquidity = easy entry/exit. 432 active (total vol 18.2K, top 1.3K)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$915.00	Oct 2	3.60	4.35	$3.97	18.9%	1.3K	0.42	363
$950.00	Oct 2	0.06	0.09	$0.08	37.5%	482	0.01	1.3K
$930.00	Oct 2	0.62	0.80	$0.71	25.4%	358	0.11	597
$935.00	Oct 2	0.29	0.46	$0.38	44.7%	339	0.06	581
$940.00	Oct 2	0.17	0.30	$0.24	54.2%	322	0.04	622

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$915.00	Oct 30	19.30	21.85	$20.58	12.4%	407	0.52	58
$915.00	Nov 6	22.10	24.40	$23.25	9.9%	389	0.51	9
$870.00	Oct 2	0.01	0.17	$0.09	177.8%	371	0.01	408
$860.00	Oct 2	0.01	0.53	$0.27	192.6%	315	0.03	279
$890.00	Oct 2	0.43	0.70	$0.56	48.2%	299	0.08	733

Term structure inversion — near-term IV higher than far-term IV at the same strike. Signals expected near-term catalyst or volatility event. 14 strikes (avg 15.7%, max 28.7%)

CALLS (5)

Strike	Near Exp	Far Exp	Near IV	Far IV	Back%	Vol	OI
$900.00	Oct 2	Nov 6	23.1%	18.0%	28.7%	16	272
$905.00	Oct 2	Nov 6	22.8%	18.2%	25.2%	52	238
$910.00	Oct 2	Nov 6	21.4%	18.1%	18.4%	42	197
$890.00	Oct 9	Oct 30	19.0%	18.0%	5.4%	3	37
$912.50	Oct 2	Oct 9	20.0%	19.0%	5.3%	83	50

PUTS (5)

Strike	Near Exp	Far Exp	Near IV	Far IV	Back%	Vol	OI
$900.00	Oct 2	Nov 6	23.1%	18.0%	28.7%	306	955
$905.00	Oct 2	Nov 6	22.8%	18.2%	25.2%	82	300
$897.50	Oct 2	Oct 9	22.7%	19.0%	19.3%	107	130
$910.00	Oct 2	Nov 6	21.4%	18.1%	18.4%	277	487
$902.50	Oct 2	Oct 9	22.9%	19.4%	18.0%	85	225

Bull call spreads & bear put spreads with the best risk/reward ratios. Pay a debit upfront, defined max loss. 248 found (best R:R 0.50, avg 9.65)

BULL CALL (5)

Buy	Sell	Expiry	Debit	Max Gain	Max Loss	POP	R:R	BE
$920.00	$925.00	Oct 30	$1.08	$3.92	$1.08	45%	3.63	$921.08
$940.00	$945.00	Oct 23	$0.25	$4.75	$0.25	27%	19.00	$940.25
$895.00	$897.50	Oct 2	$1.22	$1.28	$1.22	88%	1.05	$896.22
$900.00	$905.00	Oct 2	$2.83	$2.17	$2.83	79%	0.77	$902.83
$965.00	$975.00	Nov 6	$0.95	$9.05	$0.95	20%	9.53	$965.95

BEAR PUT (5)

Buy	Sell	Expiry	Debit	Max Gain	Max Loss	POP	R:R	BE
$985.00	$980.00	Oct 16	$3.33	$1.67	$3.33	97%	0.50	$981.67
$930.00	$925.00	Oct 16	$2.02	$2.98	$2.02	68%	1.48	$927.98
$925.00	$920.00	Oct 9	$2.18	$2.82	$2.18	69%	1.29	$922.82
$925.00	$915.00	Oct 30	$4.47	$5.53	$4.47	59%	1.24	$920.53
$895.00	$890.00	Nov 6	$0.78	$4.22	$0.78	37%	5.41	$894.22

Bear call spreads & bull put spreads collecting premium. Receive credit upfront, profit if stock stays in range. 202 found (best R:R 0.71, avg 0.29)

BEAR CALL (5)

Sell	Buy	Expiry	Credit	Max Gain	Max Loss	POP	R:R	BE
$1055.00	$1060.00	Oct 2	$2.07	$2.07	$2.93	94%	0.71	$1057.07
$1075.00	$1080.00	Nov 6	$1.99	$1.99	$3.01	94%	0.66	$1076.99
$1025.00	$1050.00	Oct 2	$1.27	$1.27	$23.73	95%	0.05	$1026.27
$1045.00	$1065.00	Nov 6	$1.75	$1.75	$18.25	93%	0.10	$1046.75
$950.00	$955.00	Oct 30	$2.06	$2.06	$2.94	76%	0.70	$952.06

BULL PUT (5)

Sell	Buy	Expiry	Credit	Max Gain	Max Loss	POP	R:R	BE
$795.00	$790.00	Oct 2	$1.65	$1.65	$3.35	94%	0.49	$793.35
$890.00	$885.00	Oct 16	$2.38	$2.38	$2.62	72%	0.91	$887.62
$905.00	$900.00	Oct 23	$3.08	$3.08	$1.92	56%	1.60	$901.92
$750.00	$740.00	Oct 2	$0.95	$0.95	$9.05	97%	0.10	$749.05
$805.00	$800.00	Oct 30	$0.68	$0.68	$4.32	96%	0.16	$804.32

Same strike, different expirations. Sell near-term, buy far-term. Profits from time decay differential. 10 found (avg debit $5.51, cheapest $4.77)

CALLS (5)

Strike	Near Exp	Far Exp	Net Debit	Near IV	Far IV
$905.00	Oct 2	Oct 9	$5.93	22.8%	19.3%
$910.00	Oct 2	Oct 9	$5.85	21.4%	19.4%
$915.00	Oct 2	Oct 9	$5.21	19.8%	18.7%
$912.50	Oct 2	Oct 9	$6.45	20.0%	19.0%
$917.50	Oct 2	Oct 9	$5.92	19.2%	19.9%

PUTS (5)

Strike	Near Exp	Far Exp	Net Debit	Near IV	Far IV
$905.00	Oct 2	Oct 9	$4.77	22.8%	19.3%
$907.50	Oct 2	Oct 9	$4.97	21.8%	18.9%
$910.00	Oct 2	Oct 9	$5.48	21.4%	19.4%
$915.00	Oct 2	Oct 9	$5.40	19.8%	18.7%
$912.50	Oct 2	Oct 9	$5.12	20.0%	19.0%

Buy call + put at the same strike and expiry. Profits from large moves in either direction. 100 found (cheapest 1.23% of stock, avg 4.47%)

Strike	Expiry	Call$	Put$	Total	BE Low	BE High	Cost%
$912.50	Oct 2	$5.15	$6.03	$11.18	$901.32	$923.68	1.23%
$915.00	Oct 2	$3.97	$7.35	$11.32	$903.68	$926.32	1.24%
$917.50	Oct 2	$2.88	$8.40	$11.28	$906.22	$928.78	1.24%
$910.00	Oct 2	$7.08	$4.65	$11.73	$898.27	$921.73	1.29%
$920.00	Oct 2	$2.32	$10.35	$12.67	$907.33	$932.67	1.39%
$905.00	Oct 2	$9.85	$3.08	$12.93	$892.07	$917.93	1.42%
$900.00	Oct 2	$12.68	$1.82	$14.50	$885.50	$914.50	1.59%
$922.50	Oct 2	$1.86	$12.63	$14.49	$908.01	$936.99	1.59%
$925.00	Oct 2	$1.54	$14.40	$15.94	$909.06	$940.94	1.75%
$897.50	Oct 2	$15.78	$1.27	$17.05	$880.45	$914.55	1.87%

Buy OTM call + OTM put at different strikes. Cheaper than straddles, needs bigger move to profit. 150 found (cheapest 0.40% of stock, avg 2.41%)

Call K	Put K	Expiry	Call$	Put$	Total	BE Low	BE High
$922.50	$900.00	Oct 2	$1.86	$1.82	$3.68	$896.32	$926.18
$922.50	$902.50	Oct 2	$1.86	$2.38	$4.24	$898.26	$926.74
$920.00	$900.00	Oct 2	$2.32	$1.82	$4.14	$895.86	$924.14
$920.00	$902.50	Oct 2	$2.32	$2.38	$4.70	$897.80	$924.70
$922.50	$905.00	Oct 2	$1.86	$3.08	$4.94	$900.06	$927.44
$917.50	$900.00	Oct 2	$2.88	$1.82	$4.70	$895.30	$922.20
$920.00	$905.00	Oct 2	$2.32	$3.08	$5.40	$899.60	$925.40
$917.50	$902.50	Oct 2	$2.88	$2.38	$5.26	$897.24	$922.76
$917.50	$905.00	Oct 2	$2.88	$3.08	$5.96	$899.04	$923.46
$922.50	$907.50	Oct 2	$1.86	$3.73	$5.59	$901.91	$928.09

Sell OTM put spread + OTM call spread. Collect premium, profit if stock stays between breakevens. 370 found (best R:R 0.57, avg credit $1.44)

Put Spread	Call Spread	Expiry	Credit	Max Loss	POP	R:R	BE Low	BE High
790/795	995/1000	Oct 2	$1.81	$3.19	93%	0.57	$793.19	$996.81
800/805	950/955	Oct 30	$2.74	$2.26	73%	1.21	$802.26	$952.74
790/795	935/940	Oct 2	$1.79	$3.21	88%	0.56	$793.21	$936.79
790/795	930/935	Oct 2	$1.98	$3.02	84%	0.66	$793.02	$931.98
815/820	950/955	Oct 30	$2.54	$2.46	72%	1.03	$817.46	$952.54
800/805	945/950	Oct 23	$2.43	$2.57	72%	0.95	$802.57	$947.43
865/870	950/955	Oct 30	$3.06	$1.94	58%	1.58	$866.94	$953.06
790/795	928/930	Oct 2	$1.98	$3.02	80%	0.66	$793.02	$929.48
845/850	950/955	Oct 30	$2.60	$2.40	67%	1.08	$847.40	$952.60
800/805	935/940	Oct 23	$2.65	$2.35	65%	1.13	$802.35	$937.65

Buy lower + upper strikes, sell 2x middle strike. Low cost, max profit at the middle strike at expiry. 160 found (best R:R 82.33, cheapest $0.05)

CALLS (5)

Low	Mid	High	Expiry	Debit	Max Gain	POP	R:R
$900.00	$905.00	$910.00	Oct 2	$0.06	$4.94	23%	82.33
$870.00	$880.00	$890.00	Oct 16	$0.37	$9.63	16%	26.03
$1025.00	$1045.00	$1065.00	Oct 30	$0.10	$19.90	2%	199.00
$912.50	$915.00	$917.50	Oct 2	$0.09	$2.41	15%	26.78
$925.00	$930.00	$935.00	Oct 9	$0.22	$4.78	12%	21.73

PUTS (5)

Low	Mid	High	Expiry	Debit	Max Gain	POP	R:R
$930.00	$940.00	$950.00	Nov 6	$0.24	$9.76	12%	40.67
$890.00	$895.00	$900.00	Oct 23	$0.05	$4.95	9%	99.00
$895.00	$900.00	$905.00	Nov 6	$0.09	$4.91	8%	54.56
$865.00	$870.00	$875.00	Oct 30	$0.11	$4.89	6%	44.45
$910.00	$915.00	$920.00	Oct 23	$0.19	$4.81	8%	25.32

Buy 1 option, sell 2 at a different strike (1:2 ratio). Can be entered for a credit. Unlimited risk on naked leg. 256 found (best net $-2.17, 222 credits)

CALLS (5)

Buy K	Sell K	Ratio	Expiry	Net	Max Gain
$855.00	$885.00	1:2	Oct 9	-$2.17	$27.83
$735.00	$800.00	1:2	Oct 16	-$48.27	$16.73
$885.00	$895.00	1:2	Oct 2	-$6.02	$3.98
$975.00	$995.00	1:2	Nov 6	-$1.29	$18.71
$940.00	$945.00	1:2	Oct 9	-$0.19	$4.81

PUTS (5)

Buy K	Sell K	Ratio	Expiry	Net	Max Gain
$800.00	$745.00	1:2	Oct 16	-$0.06	$54.94
$820.00	$815.00	1:2	Oct 30	-$0.02	$4.98
$835.00	$805.00	1:2	Oct 9	-$0.05	$29.95
$870.00	$865.00	1:2	Oct 9	-$0.11	$4.89
$815.00	$810.00	1:2	Oct 23	-$0.01	$4.99

Sell OTM calls against 100 shares you own. Collect premium for income, capped upside at strike. Yield% = premium/stock price. 86 found (best yield 2.31%, avg 0.61%)

Strike	Expiry	Bid	Delta	OTM%	Yield%	If Called%	Vol	OI
$915.00	Nov 6	$21.05	0.49	0.5%	2.31%	2.82%	33	14
$920.00	Nov 6	$18.60	0.46	1.1%	2.04%	3.10%	166	31
$925.00	Nov 6	$16.55	0.42	1.6%	1.82%	3.43%	176	17
$930.00	Nov 6	$14.15	0.39	2.2%	1.55%	3.71%	1	--
$935.00	Nov 6	$12.45	0.36	2.7%	1.37%	4.08%	6	8
$940.00	Nov 6	$10.95	0.33	3.3%	1.20%	4.46%	2	--
$945.00	Nov 6	$9.80	0.30	3.8%	1.08%	4.88%	13	10
$915.00	Oct 30	$17.85	0.49	0.5%	1.96%	2.47%	19	41
$925.00	Oct 30	$13.85	0.41	1.6%	1.52%	3.13%	43	85
$950.00	Nov 6	$8.55	0.27	4.4%	0.94%	5.30%	5	100

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 14,466

Total Puts 11,509

Put/Call Ratio 0.80

Net Difference 2,957

Prior's Put/Call Breakdown

Total Calls 15,314

Total Puts 10,899

Put/Call Ratio 0.71

Net Difference 4,415

Prior 7-Day Put/Call Summary

Total Calls 221,834

Total Puts 187,227

Average Put/Call Ratio 0.83

Ratio Trend Rising

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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