COST - Options Database

COST

COSTCO WHSL CORP NEW

$895.31 +0.15%

$896.42 (+0.12%)🌙

as of 09/18 06:01 PM

(9/18 15:12) ◀

Friday, September 18, 2026 (6:01pm)

▶ (9/21 18:01)

◀ 9/18 18:01 ▶

Option Volume

Detail

ℹ

Current (09/18) 48,927

Calls: 27,089 (55%)

Puts: 21,838 (45%)

Prior (09/17) 52,285

Calls: 23,932 (46%)

Puts: 28,353 (54%)

Current vs Prior -6.42%

Calls: +13.19% (Calls)

Puts: -22.98% (Puts)

Prior 7-Day Total 283,679

Calls: 140,425 (50%)

Puts: 143,254 (50%)

Prior 7-Day Average 40,525

Calls: 20,060 (50%)

Puts: 20,464 (50%)

Current vs Prior 7-Day Avg +20.73%

Calls: +35.04%

Puts: +6.71%

Sentiment BULLISH

Dollar Volume

Detail

ℹ

Current (09/18) $51.38M

Calls: $25.88M (50%)

Puts: $25.50M (50%)

Prior (09/17) $96.67M

Calls: $24.48M (25%)

Puts: $72.20M (75%)

Current vs Prior -46.85%

Calls: +5.74%

Puts: -64.68%

Prior 7-Day Total $459.51M

Calls: $242.05M (53%)

Puts: $217.46M (47%)

Prior 7-Day Average $65.64M

Calls: $34.58M (53%)

Puts: $31.07M (47%)

Current vs Prior 7-Day Avg -21.73%

Calls: -25.15%

Puts: -17.92%

Sentiment BULLISH

Put/Call Ratio

Detail

ℹ

Current (09/18) 0.81

Prior (09/17) 1.18

Current vs Prior -31.95%

Prior 7-Day Average 1.02

Current vs Prior 7-Day Avg -21.33%

Sentiment NEUTRAL

Open Interest

Detail

ℹ

Current (09/18) 337,653

Calls: 170,928 (51%)

Puts: 166,725 (49%)

Prior (09/17) 326,643

Calls: 162,406 (50%)

Puts: 164,237 (50%)

Current vs Prior +3.37%

Prior 7-Day Total 2,279,850

Calls: 1,122,958 (49%)

Puts: 1,156,892 (51%)

Prior 7-Day Average 325,692

Calls: 160,422 (49%)

Puts: 165,270 (51%)

Current vs Prior 7-Day Avg +3.67%

Sentiment BEARISH

Expected Move

Detail

ℹ

WKMO Expiry (09/18) | Next (09/25)Expiry (09/18) | Next (10/16)

Current 0.68% | 3.68%0.68% | 5.55%

Prior 1.14% | 3.57%1.14% | 5.49%

Current vs Prior +222.98% | +27.26%-40.67% | +1.11%

Prior 7-Day Avg 1.68% | 3.78%1.92% | 5.95%

Current vs 7-Day Avg +118.67% | +20.28%-64.88% | -6.71%

Prior 7-Day Eod 0.69% | 3.75%1.14% | 5.49%

Current vs 7-Day Eod +436.69% | +21.00%-40.67% | +1.11%

Sentiment BEARISHBULLISH

Relative Spread

Detail

ℹ

Expiry | Next

Current 31.43% | 7.18%

Calls: 29.29% | 6.94%

Puts: 33.57% | 7.41%

Prior 16.77% | 7.47%

Calls: 11.11% | 6.70%

Puts: 22.42% | 8.25%

Current vs Prior +87.42% | -3.88%

Prior 7-Day Avg 17.17% | 7.68%

Calls: 14.96% | 7.63%

Puts: 13.62% | 7.31%

Current vs 7-Day Avg +83.02% | -6.46%

Liquidity Expensive

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P/C ratio dropping 32% - 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 BEARISH

7-Day Avg BULLISH

Current BULLISH

Prior NEUTRAL

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

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⏰ 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 120 of results (avg 7.5%, best 3.2%)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$720.00	Sep 25	174.05	179.80	$176.93	3.2%	2	0.97	--
$740.00	Sep 18	154.00	159.10	$156.55	3.3%	1	1.00	29
$765.00	Sep 18	129.45	133.75	$131.60	3.3%	--	0.92	46
$720.00	Sep 18	173.00	179.85	$176.43	3.9%	--	0.94	29
$750.00	Sep 18	143.35	149.10	$146.23	3.9%	--	1.00	11

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$1020.00	Sep 18	121.25	125.50	$123.38	3.4%	--	1.00	17
$900.00	Oct 16	24.10	25.00	$24.55	3.7%	76	0.52	1.3K
$1000.00	Oct 16	102.40	106.55	$104.48	4.0%	3	0.93	158
$1000.00	Sep 18	101.25	105.50	$103.38	4.1%	--	1.00	62
$995.00	Oct 16	96.75	101.30	$99.03	4.6%	--	0.93	342

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. 202 found (avg delta 0.79, highest 1.00)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$740.00	Sep 18	154.00	159.10	$156.55	3.3%	1	1.00	29
$760.00	Sep 18	134.45	140.00	$137.23	4.0%	--	1.00	69
$820.00	Sep 18	74.45	78.75	$76.60	5.6%	2	1.00	38
$825.00	Sep 18	68.60	74.05	$71.32	7.6%	1	1.00	1
$780.00	Sep 18	113.65	120.00	$116.83	5.4%	--	1.00	53

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$900.00	Sep 18	2.91	5.10	$4.01	54.6%	1.6K	1.00	2.3K
$905.00	Sep 18	6.75	10.15	$8.45	40.2%	227	1.00	591
$910.00	Sep 18	11.80	15.15	$13.48	24.9%	627	1.00	1.0K
$915.00	Sep 18	16.60	20.20	$18.40	19.6%	105	1.00	233
$920.00	Sep 18	20.00	25.55	$22.78	24.4%	88	1.00	613

Most actively traded options today. High liquidity = easy entry/exit. 517 active (total vol 40.7K, top 3.8K)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$915.00	Sep 18	0.00	0.01	$0.01	100.0%	3.8K	0.00	285
$900.00	Sep 18	0.00	0.01	$0.01	100.0%	2.2K	0.01	754
$895.00	Sep 18	0.03	4.05	$2.04	197.1%	1.1K	0.75	452
$985.00	Sep 25	0.45	0.65	$0.55	36.4%	840	0.03	939
$905.00	Sep 18	0.00	0.01	$0.01	100.0%	822	0.01	451

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$900.00	Sep 18	2.91	5.10	$4.01	54.6%	1.6K	1.00	2.3K
$890.00	Sep 25	11.70	13.00	$12.35	10.5%	1.1K	0.43	363
$890.00	Sep 18	0.00	0.12	$0.06	200.0%	1.0K	0.04	1.3K
$845.00	Sep 25	1.50	1.72	$1.61	13.7%	1.0K	0.09	1.1K
$850.00	Sep 25	2.00	2.20	$2.10	9.5%	887	0.11	932

Term structure inversion — near-term IV higher than far-term IV at the same strike. Signals expected near-term catalyst or volatility event. 4 strikes (avg 869.0%, max 3325.9%)

CALLS (2)

Strike	Near Exp	Far Exp	Near IV	Far IV	Back%	Vol	OI
$955.00	Sep 18	Oct 30	799.9%	23.4%	3325.9%	6	599
$895.00	Sep 18	Oct 30	35.1%	21.0%	66.7%	1.1K	501

PUTS (2)

Strike	Near Exp	Far Exp	Near IV	Far IV	Back%	Vol	OI
$895.00	Sep 18	Oct 30	35.1%	21.0%	66.7%	582	1.1K
$917.50	Sep 25	Oct 2	32.1%	27.6%	16.5%	41	82

Bull call spreads & bear put spreads with the best risk/reward ratios. Pay a debit upfront, defined max loss. 332 found (best R:R 3.27, avg 9.65)

BULL CALL (5)

Buy	Sell	Expiry	Debit	Max Gain	Max Loss	POP	R:R	BE
$905.00	$910.00	Oct 23	$1.53	$3.47	$1.53	47%	2.27	$906.53
$955.00	$960.00	Oct 23	$0.25	$4.75	$0.25	20%	19.00	$955.25
$865.00	$870.00	Sep 25	$3.22	$1.78	$3.22	80%	0.55	$868.22
$935.00	$940.00	Oct 23	$0.73	$4.27	$0.73	30%	5.85	$935.73
$875.00	$880.00	Oct 23	$2.60	$2.40	$2.60	66%	0.92	$877.60

BEAR PUT (5)

Buy	Sell	Expiry	Debit	Max Gain	Max Loss	POP	R:R	BE
$895.00	$890.00	Oct 23	$1.17	$3.83	$1.17	47%	3.27	$893.83
$920.00	$915.00	Oct 23	$1.98	$3.02	$1.98	62%	1.53	$918.02
$945.00	$940.00	Oct 2	$3.20	$1.80	$3.20	83%	0.56	$941.80
$917.50	$915.00	Sep 25	$0.85	$1.65	$0.85	70%	1.94	$916.65
$920.00	$915.00	Oct 16	$2.36	$2.64	$2.36	64%	1.12	$917.64

Bear call spreads & bull put spreads collecting premium. Receive credit upfront, profit if stock stays in range. 275 found (best R:R 5.85, avg 0.38)

BEAR CALL (5)

Sell	Buy	Expiry	Credit	Max Gain	Max Loss	POP	R:R	BE
$1065.00	$1070.00	Oct 2	$2.08	$2.08	$2.92	94%	0.71	$1067.08
$1010.00	$1015.00	Oct 2	$1.08	$1.08	$3.92	94%	0.28	$1011.08
$1005.00	$1010.00	Oct 2	$1.11	$1.11	$3.89	92%	0.29	$1006.11
$960.00	$965.00	Oct 9	$1.39	$1.39	$3.61	85%	0.39	$961.39
$905.00	$907.50	Sep 25	$1.65	$1.65	$0.85	58%	1.94	$906.65

BULL PUT (5)

Sell	Buy	Expiry	Credit	Max Gain	Max Loss	POP	R:R	BE
$765.00	$760.00	Sep 18	$4.27	$4.27	$0.73	92%	5.85	$760.73
$785.00	$780.00	Sep 18	$4.26	$4.26	$0.74	91%	5.76	$780.74
$755.00	$750.00	Sep 18	$4.15	$4.15	$0.85	92%	4.88	$750.85
$840.00	$835.00	Sep 18	$4.25	$4.25	$0.75	86%	5.67	$835.75
$880.00	$875.00	Oct 23	$2.88	$2.88	$2.12	62%	1.36	$877.12

Same strike, different expirations. Sell near-term, buy far-term. Profits from time decay differential. 2 found (avg debit $8.78, cheapest $3.00)

CALLS (0)

No calls found

PUTS (2)

Strike	Near Exp	Far Exp	Net Debit	Near IV	Far IV
$917.50	Sep 25	Oct 2	$3.00	32.1%	27.6%
$895.00	Sep 18	Sep 25	$14.56	35.1%	31.7%

Buy call + put at the same strike and expiry. Profits from large moves in either direction. 177 found (cheapest 0.28% of stock, avg 5.69%)

Strike	Expiry	Call$	Put$	Total	BE Low	BE High	Cost%
$895.00	Sep 18	$2.04	$0.44	$2.48	$892.52	$897.48	0.28%
$900.00	Sep 18	$0.01	$4.01	$4.02	$895.98	$904.02	0.45%
$890.00	Sep 18	$5.83	$0.06	$5.89	$884.11	$895.89	0.66%
$905.00	Sep 18	$0.01	$8.45	$8.46	$896.54	$913.46	0.94%
$885.00	Sep 18	$12.23	$0.01	$12.24	$872.76	$897.24	1.37%
$910.00	Sep 18	$0.01	$13.48	$13.49	$896.51	$923.49	1.51%
$880.00	Sep 18	$16.58	$0.05	$16.63	$863.37	$896.63	1.86%
$915.00	Sep 18	$0.01	$18.40	$18.41	$896.59	$933.41	2.06%
$875.00	Sep 18	$21.17	$0.04	$21.21	$853.79	$896.21	2.37%
$920.00	Sep 18	$0.03	$22.78	$22.81	$897.19	$942.81	2.55%

Buy OTM call + OTM put at different strikes. Cheaper than straddles, needs bigger move to profit. 165 found (cheapest 0.53% of stock, avg 3.53%)

Call K	Put K	Expiry	Call$	Put$	Total	BE Low	BE High
$942.50	$895.00	Sep 18	$4.28	$0.44	$4.72	$890.28	$947.22
$955.00	$895.00	Sep 18	$4.28	$0.44	$4.72	$890.28	$959.72
$1060.00	$895.00	Sep 18	$4.28	$0.44	$4.72	$890.28	$1064.72
$1060.00	$790.00	Sep 18	$4.28	$4.28	$8.56	$781.44	$1068.56
$1060.00	$795.00	Sep 18	$4.28	$4.28	$8.56	$786.44	$1068.56
$955.00	$840.00	Sep 18	$4.28	$4.28	$8.56	$831.44	$963.56
$1060.00	$800.00	Sep 18	$4.28	$4.28	$8.56	$791.44	$1068.56
$942.50	$840.00	Sep 18	$4.28	$4.28	$8.56	$831.44	$951.06
$955.00	$800.00	Sep 18	$4.28	$4.28	$8.56	$791.44	$963.56
$1060.00	$840.00	Sep 18	$4.28	$4.28	$8.56	$831.44	$1068.56

Sell OTM put spread + OTM call spread. Collect premium, profit if stock stays between breakevens. 330 found (best R:R 7.77, avg credit $1.71)

Put Spread	Call Spread	Expiry	Credit	Max Loss	POP	R:R	BE Low	BE High
760/765	1010/1015	Sep 18	$4.43	$0.57	91%	7.77	$760.57	$1014.43
780/785	1010/1015	Sep 18	$4.42	$0.58	90%	7.62	$780.58	$1014.42
760/765	928/930	Sep 18	$4.44	$0.56	89%	7.93	$760.56	$931.94
750/755	1010/1015	Sep 18	$4.31	$0.69	91%	6.25	$750.69	$1014.31
780/785	928/930	Sep 18	$4.43	$0.57	88%	7.77	$780.57	$931.93
750/755	928/930	Sep 18	$4.32	$0.68	89%	6.35	$750.68	$931.82
855/860	955/958	Sep 18	$4.83	$0.17	79%	28.41	$855.17	$959.83
855/860	942/945	Sep 18	$4.83	$0.17	77%	28.41	$855.17	$947.33
835/840	1010/1015	Sep 18	$4.41	$0.59	84%	7.47	$835.59	$1014.41
745/750	955/958	Sep 18	$4.38	$0.62	84%	7.06	$745.62	$959.38

Buy lower + upper strikes, sell 2x middle strike. Low cost, max profit at the middle strike at expiry. 278 found (best R:R 1.84, cheapest $0.05)

CALLS (5)

Low	Mid	High	Expiry	Debit	Max Gain	POP	R:R
$890.00	$895.00	$900.00	Sep 18	$1.76	$3.24	95%	1.84
$840.00	$855.00	$870.00	Oct 9	$0.45	$14.55	17%	32.33
$895.00	$900.00	$905.00	Sep 18	$2.03	$2.97	75%	1.46
$860.00	$870.00	$880.00	Oct 2	$0.47	$9.53	14%	20.28
$840.00	$850.00	$860.00	Oct 2	$0.45	$9.55	12%	21.22

PUTS (5)

Low	Mid	High	Expiry	Debit	Max Gain	POP	R:R
$895.00	$900.00	$905.00	Sep 18	$0.87	$4.13	66%	4.75
$890.00	$895.00	$900.00	Sep 18	$3.19	$1.81	96%	0.57
$885.00	$890.00	$895.00	Sep 18	$0.33	$4.67	33%	14.15
$865.00	$870.00	$875.00	Sep 25	$0.07	$4.93	8%	70.43
$865.00	$870.00	$875.00	Oct 2	$0.08	$4.92	7%	61.50

Buy 1 option, sell 2 at a different strike (1:2 ratio). Can be entered for a credit. Unlimited risk on naked leg. 323 found (best net $-18.53, 288 credits)

CALLS (5)

Buy K	Sell K	Ratio	Expiry	Net	Max Gain
$720.00	$800.00	1:2	Sep 25	-$18.53	$61.47
$800.00	$835.00	1:2	Sep 25	-$28.37	$6.63
$1015.00	$1025.00	1:2	Oct 9	-$0.23	$9.77
$1040.00	$1045.00	1:2	Sep 25	-$0.01	$4.99
$900.00	$905.00	1:2	Sep 18	-$0.01	$4.99

PUTS (5)

Buy K	Sell K	Ratio	Expiry	Net	Max Gain
$910.00	$905.00	1:2	Sep 18	-$3.42	$1.58
$760.00	$750.00	1:2	Oct 23	-$0.01	$9.99
$765.00	$760.00	1:2	Oct 16	$0.00	$5.00
$875.00	$870.00	1:2	Sep 18	$0.00	$5.00
$800.00	$795.00	1:2	Sep 25	-$0.02	$4.98

Sell OTM calls against 100 shares you own. Collect premium for income, capped upside at strike. Yield% = premium/stock price. 128 found (best yield 2.91%, avg 0.84%)

Strike	Expiry	Bid	Delta	OTM%	Yield%	If Called%	Vol	OI
$900.00	Oct 30	$26.05	0.49	0.5%	2.91%	3.43%	19	30
$905.00	Oct 30	$23.60	0.47	1.1%	2.64%	3.72%	--	21
$915.00	Oct 30	$19.50	0.42	2.2%	2.18%	4.38%	1	5
$910.00	Oct 30	$20.95	0.44	1.6%	2.34%	3.98%	2	32
$920.00	Oct 30	$17.60	0.39	2.8%	1.97%	4.72%	1	7
$900.00	Oct 23	$23.95	0.50	0.5%	2.68%	3.20%	317	489
$905.00	Oct 23	$21.55	0.47	1.1%	2.41%	3.49%	8	64
$910.00	Oct 23	$19.45	0.44	1.6%	2.17%	3.81%	4	93
$930.00	Oct 30	$14.10	0.34	3.9%	1.57%	5.45%	1	5
$915.00	Oct 23	$17.25	0.41	2.2%	1.93%	4.13%	1	39

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 27,089

Total Puts 21,838

Put/Call Ratio 0.81

Net Difference 5,251

Prior's Put/Call Breakdown

Total Calls 23,932

Total Puts 28,353

Put/Call Ratio 1.18

Net Difference -4,421

Prior 7-Day Put/Call Summary

Total Calls 140,425

Total Puts 143,254

Average Put/Call Ratio 1.02

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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