COST - Options Database

COST

COSTCO WHSL CORP NEW

$897.38 +0.39%

(9/18 15:05) ◀

Friday, September 18, 2026 (3:12pm)

▶ (9/18 18:01)

◀ 9/18 15:12 ▶

Option Volume

Detail

ℹ

Current (09/18) 43,788

Calls: 24,232 (55%)

Puts: 19,556 (45%)

Prior (09/17) 52,285

Calls: 23,932 (46%)

Puts: 28,353 (54%)

Current vs Prior -16.25%

Calls: +1.25% (Calls)

Puts: -31.03% (Puts)

Prior 7-Day Total 283,245

Calls: 138,961 (49%)

Puts: 144,284 (51%)

Prior 7-Day Average 40,463

Calls: 19,851 (49%)

Puts: 20,612 (51%)

Current vs Prior 7-Day Avg +8.22%

Calls: +22.07%

Puts: -5.12%

Sentiment BULLISH

Dollar Volume

Detail

ℹ

Current (09/18) $47.49M

Calls: $24.02M (51%)

Puts: $23.47M (49%)

Prior (09/17) $96.67M

Calls: $24.48M (25%)

Puts: $72.20M (75%)

Current vs Prior -50.88%

Calls: -1.88%

Puts: -67.49%

Prior 7-Day Total $466.58M

Calls: $248.90M (53%)

Puts: $217.68M (47%)

Prior 7-Day Average $66.65M

Calls: $35.56M (53%)

Puts: $31.10M (47%)

Current vs Prior 7-Day Avg -28.76%

Calls: -32.46%

Puts: -24.53%

Sentiment BULLISH

Put/Call Ratio

Detail

ℹ

Current (09/18) 0.81

Prior (09/17) 1.18

Current vs Prior -31.88%

Prior 7-Day Average 1.04

Current vs Prior 7-Day Avg -22.30%

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 2,265,887

Calls: 1,108,857 (49%)

Puts: 1,157,030 (51%)

Prior 7-Day Average 323,698

Calls: 158,408 (49%)

Puts: 165,290 (51%)

Current vs Prior 7-Day Avg +4.31%

Sentiment BEARISH

Expected Move

Detail

ℹ

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

Current 0.69% | 3.75%0.69% | 5.64%

Prior 1.14% | 3.57%1.14% | 5.49%

Current vs Prior -39.82% | +5.17%-39.82% | +2.84%

Prior 7-Day Avg 1.68% | 3.64%2.05% | 6.02%

Current vs 7-Day Avg -59.09% | +3.12%-66.61% | -6.24%

Prior 7-Day Eod 1.14% | 3.57%1.14% | 5.49%

Current vs 7-Day Eod -39.82% | +5.17%-39.82% | +2.84%

Sentiment BULLISHBULLISH

Relative Spread

Detail

ℹ

Expiry | Next

Current 34.44% | 8.93%

Calls: 37.63% | 5.65%

Puts: 31.25% | 12.20%

Prior 16.77% | 7.47%

Calls: 11.11% | 6.70%

Puts: 22.42% | 8.25%

Current vs Prior +105.37% | +19.54%

Prior 7-Day Avg 14.62% | 7.39%

Calls: 15.09% | 7.18%

Puts: 14.13% | 7.61%

Current vs 7-Day Avg +135.64% | +20.79%

Liquidity Expensive

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Light premium activity with dollar volume down 51% vs prior. 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 NEUTRAL

Prior BULLISH

7-Day Avg BULLISH

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🔥 High Volume

⏰ Backwardation

📈 Debit Spreads

📉 Credit Spreads

📅 Calendar Spreads

⚡ Straddles

🔀 Strangles

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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 211 of results (avg 7.1%, best 2.6%)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$920.00	Sep 25	7.60	7.80	$7.70	2.6%	383	0.30	746
$720.00	Sep 18	173.55	179.10	$176.33	3.1%	--	0.94	29
$720.00	Sep 25	174.05	179.80	$176.93	3.2%	2	0.95	--
$740.00	Sep 18	153.55	159.10	$156.32	3.6%	--	1.00	29
$890.00	Oct 16	28.80	29.90	$29.35	3.7%	57	0.57	121

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$970.00	Oct 16	73.65	76.00	$74.83	3.1%	--	0.87	48
$1000.00	Oct 16	101.55	105.25	$103.40	3.6%	2	0.93	158
$900.00	Oct 2	19.45	20.20	$19.83	3.8%	76	0.51	404
$915.00	Oct 16	31.70	33.00	$32.35	4.0%	6	0.59	266
$890.00	Oct 2	14.55	15.15	$14.85	4.0%	66	0.42	170

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. 201 found (avg delta 0.78, highest 1.00)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$740.00	Sep 18	153.55	159.10	$156.32	3.6%	--	1.00	29
$760.00	Sep 18	133.25	139.50	$136.38	4.6%	--	1.00	69
$780.00	Sep 18	113.55	119.20	$116.38	4.9%	--	1.00	53
$800.00	Sep 18	93.35	98.35	$95.85	5.2%	4	1.00	102
$865.00	Sep 18	28.55	34.15	$31.35	17.9%	3	1.00	5

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$905.00	Sep 18	6.95	8.40	$7.68	18.9%	163	1.00	591
$910.00	Sep 18	11.85	13.20	$12.52	10.8%	567	1.00	1.0K
$915.00	Sep 18	17.00	18.25	$17.63	7.1%	84	1.00	233
$920.00	Sep 18	21.10	25.55	$23.33	19.1%	78	1.00	613
$925.00	Sep 18	26.85	31.55	$29.20	16.1%	17	1.00	123

Most actively traded options today. High liquidity = easy entry/exit. 486 active (total vol 36.4K, 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	0.50	0.87	$0.69	53.6%	1.8K	0.27	754
$895.00	Sep 18	2.39	3.50	$2.95	37.6%	977	0.74	452
$985.00	Sep 25	0.43	0.67	$0.55	43.6%	813	0.03	939
$980.00	Sep 25	0.60	0.81	$0.71	29.6%	747	0.04	838

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$900.00	Sep 18	2.70	3.70	$3.20	31.2%	1.4K	0.74	2.3K
$890.00	Sep 25	11.65	12.70	$12.18	8.6%	1.1K	0.42	363
$845.00	Sep 25	1.45	1.77	$1.61	19.9%	887	0.09	1.1K
$850.00	Sep 25	1.89	2.21	$2.05	15.6%	802	0.11	932
$890.00	Sep 18	0.05	0.15	$0.10	100.0%	773	0.05	1.3K

Term structure inversion — near-term IV higher than far-term IV at the same strike. Signals expected near-term catalyst or volatility event. 5 strikes (avg 76.6%, max 106.2%)

CALLS (2)

Strike	Near Exp	Far Exp	Near IV	Far IV	Back%	Vol	OI
$900.00	Sep 18	Oct 30	43.2%	20.9%	106.2%	1.8K	784
$895.00	Sep 18	Oct 30	37.2%	21.0%	77.3%	1.0K	501

PUTS (3)

Strike	Near Exp	Far Exp	Near IV	Far IV	Back%	Vol	OI
$900.00	Sep 18	Oct 30	43.2%	20.9%	106.2%	1.4K	2.5K
$895.00	Sep 18	Oct 30	37.2%	21.0%	77.3%	479	1.1K
$917.50	Sep 25	Oct 2	32.8%	28.3%	16.0%	41	82

Bull call spreads & bear put spreads with the best risk/reward ratios. Pay a debit upfront, defined max loss. 342 found (best R:R 1.13, avg 8.97)

BULL CALL (5)

Buy	Sell	Expiry	Debit	Max Gain	Max Loss	POP	R:R	BE
$870.00	$880.00	Oct 2	$5.70	$4.30	$5.70	74%	0.75	$875.70
$860.00	$865.00	Sep 25	$3.10	$1.90	$3.10	84%	0.61	$863.10
$885.00	$890.00	Oct 9	$1.93	$3.07	$1.93	61%	1.59	$886.93
$895.00	$900.00	Oct 23	$1.55	$3.45	$1.55	52%	2.23	$896.55
$865.00	$870.00	Oct 16	$2.62	$2.38	$2.62	73%	0.91	$867.62

BEAR PUT (5)

Buy	Sell	Expiry	Debit	Max Gain	Max Loss	POP	R:R	BE
$950.00	$945.00	Oct 23	$2.35	$2.65	$2.35	77%	1.13	$947.65
$970.00	$965.00	Oct 16	$3.13	$1.87	$3.13	87%	0.60	$966.87
$952.50	$950.00	Sep 18	$1.48	$1.02	$1.48	100%	0.69	$951.02
$920.00	$915.00	Oct 23	$2.13	$2.87	$2.13	62%	1.35	$917.87
$920.00	$917.50	Sep 25	$0.90	$1.60	$0.90	70%	1.78	$919.10

Bear call spreads & bull put spreads collecting premium. Receive credit upfront, profit if stock stays in range. 279 found (best R:R 5.85, avg 0.41)

BEAR CALL (5)

Sell	Buy	Expiry	Credit	Max Gain	Max Loss	POP	R:R	BE
$1065.00	$1070.00	Oct 2	$3.83	$3.83	$1.17	91%	3.27	$1068.83
$1040.00	$1060.00	Sep 18	$3.40	$3.40	$16.60	92%	0.20	$1043.40
$1005.00	$1010.00	Oct 2	$1.31	$1.31	$3.69	91%	0.36	$1006.31
$1010.00	$1015.00	Oct 2	$1.01	$1.01	$3.99	94%	0.25	$1011.01
$930.00	$935.00	Oct 9	$2.00	$2.00	$3.00	70%	0.67	$932.00

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
$775.00	$770.00	Sep 18	$4.22	$4.22	$0.78	91%	5.41	$770.78
$755.00	$750.00	Sep 18	$4.15	$4.15	$0.85	92%	4.88	$750.85
$805.00	$800.00	Sep 18	$4.21	$4.21	$0.79	90%	5.33	$800.79

Same strike, different expirations. Sell near-term, buy far-term. Profits from time decay differential. 1 found (avg debit $2.29, cheapest $2.29)

CALLS (0)

No calls found

PUTS (1)

Strike	Near Exp	Far Exp	Net Debit	Near IV	Far IV
$917.50	Sep 25	Oct 2	$2.29	32.8%	28.3%

Buy call + put at the same strike and expiry. Profits from large moves in either direction. 176 found (cheapest 0.39% of stock, avg 5.72%)

Strike	Expiry	Call$	Put$	Total	BE Low	BE High	Cost%
$895.00	Sep 18	$2.95	$0.55	$3.50	$891.50	$898.50	0.39%
$900.00	Sep 18	$0.69	$3.20	$3.89	$896.11	$903.89	0.43%
$890.00	Sep 18	$6.68	$0.10	$6.78	$883.22	$896.78	0.76%
$905.00	Sep 18	$0.03	$7.68	$7.71	$897.29	$912.71	0.86%
$885.00	Sep 18	$11.88	$0.06	$11.94	$873.06	$896.94	1.33%
$910.00	Sep 18	$0.01	$12.52	$12.53	$897.47	$922.53	1.40%
$880.00	Sep 18	$16.73	$0.05	$16.78	$863.22	$896.78	1.87%
$915.00	Sep 18	$0.01	$17.63	$17.64	$897.36	$932.64	1.97%
$875.00	Sep 18	$22.23	$0.03	$22.26	$852.74	$897.26	2.48%
$920.00	Sep 18	$0.01	$23.33	$23.34	$896.66	$943.34	2.60%

Buy OTM call + OTM put at different strikes. Cheaper than straddles, needs bigger move to profit. 170 found (cheapest 0.14% of stock, avg 3.46%)

Call K	Put K	Expiry	Call$	Put$	Total	BE Low	BE High
$900.00	$895.00	Sep 18	$0.69	$0.55	$1.24	$893.76	$901.24
$942.50	$895.00	Sep 18	$2.50	$0.55	$3.05	$891.95	$945.55
$955.00	$895.00	Sep 18	$2.73	$0.55	$3.28	$891.72	$958.28
$1040.00	$895.00	Sep 18	$3.43	$0.55	$3.98	$891.02	$1043.98
$900.00	$840.00	Sep 18	$0.69	$4.28	$4.97	$835.03	$904.97
$900.00	$805.00	Sep 18	$0.69	$4.22	$4.91	$800.09	$904.91
$900.00	$795.00	Sep 18	$0.69	$4.28	$4.97	$790.03	$904.97
$900.00	$790.00	Sep 18	$0.69	$4.28	$4.97	$785.03	$904.97
$942.50	$840.00	Sep 18	$2.50	$4.28	$6.78	$833.22	$949.28
$942.50	$805.00	Sep 18	$2.50	$4.22	$6.72	$798.28	$949.22

Sell OTM put spread + OTM call spread. Collect premium, profit if stock stays between breakevens. 297 found (best R:R 0.62, avg credit $1.88)

Put Spread	Call Spread	Expiry	Credit	Max Loss	POP	R:R	BE Low	BE High
760/765	1040/1060	Sep 18	$7.67	$12.33	83%	0.62	$757.33	$1047.67
750/755	1040/1060	Sep 18	$7.55	$12.45	84%	0.61	$747.45	$1047.55
770/775	1040/1060	Sep 18	$7.62	$12.38	83%	0.62	$767.38	$1047.62
780/785	1040/1060	Sep 18	$7.66	$12.34	82%	0.62	$777.34	$1047.66
800/805	1040/1060	Sep 18	$7.61	$12.39	81%	0.61	$797.39	$1047.61
835/840	1040/1060	Sep 18	$7.65	$12.35	77%	0.62	$832.35	$1047.65
770/775	900/905	Sep 18	$4.88	$0.12	64%	40.67	$770.12	$904.88
750/755	900/905	Sep 18	$4.81	$0.19	65%	25.32	$750.19	$904.81
800/805	900/905	Sep 18	$4.87	$0.13	63%	37.46	$800.13	$904.87
745/750	955/958	Sep 18	$2.83	$2.17	87%	1.30	$747.17	$957.83

Buy lower + upper strikes, sell 2x middle strike. Low cost, max profit at the middle strike at expiry. 247 found (best R:R 2.12, cheapest $0.05)

CALLS (5)

Low	Mid	High	Expiry	Debit	Max Gain	POP	R:R
$895.00	$900.00	$905.00	Sep 18	$1.60	$3.40	72%	2.12
$890.00	$895.00	$900.00	Sep 18	$1.47	$3.53	68%	2.40
$840.00	$850.00	$860.00	Sep 25	$0.20	$9.80	9%	49.00
$895.00	$900.00	$905.00	Oct 2	$0.10	$4.90	8%	49.00
$900.00	$905.00	$910.00	Sep 18	$0.64	$4.36	26%	6.81

PUTS (5)

Low	Mid	High	Expiry	Debit	Max Gain	POP	R:R
$895.00	$900.00	$905.00	Sep 18	$1.83	$3.17	74%	1.73
$900.00	$905.00	$910.00	Sep 18	$0.36	$4.64	26%	12.89
$890.00	$895.00	$900.00	Sep 18	$2.20	$2.80	68%	1.27
$885.00	$890.00	$895.00	Sep 18	$0.41	$4.59	23%	11.20
$875.00	$880.00	$885.00	Sep 25	$0.05	$4.95	9%	99.00

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 $-20.57, 290 credits)

CALLS (5)

Buy K	Sell K	Ratio	Expiry	Net	Max Gain
$720.00	$800.00	1:2	Sep 25	-$20.57	$59.43
$800.00	$835.00	1:2	Sep 25	-$27.35	$7.65
$885.00	$890.00	1:2	Sep 18	-$1.48	$3.52
$1005.00	$1010.00	1:2	Oct 2	-$0.24	$4.76
$1030.00	$1035.00	1:2	Sep 25	-$0.01	$4.99

PUTS (5)

Buy K	Sell K	Ratio	Expiry	Net	Max Gain
$910.00	$905.00	1:2	Sep 18	-$2.84	$2.16
$890.00	$885.00	1:2	Sep 18	-$0.02	$4.98
$725.00	$720.00	1:2	Oct 23	$0.00	$5.00
$815.00	$810.00	1:2	Oct 2	-$0.06	$4.94
$765.00	$760.00	1:2	Oct 16	-$0.02	$4.98

Sell OTM calls against 100 shares you own. Collect premium for income, capped upside at strike. Yield% = premium/stock price. 129 found (best yield 3.06%, avg 0.88%)

Strike	Expiry	Bid	Delta	OTM%	Yield%	If Called%	Vol	OI
$900.00	Oct 30	$27.45	0.49	0.3%	3.06%	3.35%	15	30
$905.00	Oct 30	$24.90	0.47	0.8%	2.77%	3.62%	--	21
$910.00	Oct 30	$22.10	0.44	1.4%	2.46%	3.87%	1	32
$915.00	Oct 30	$19.50	0.42	2.0%	2.17%	4.14%	1	5
$900.00	Oct 23	$25.35	0.50	0.3%	2.82%	3.12%	262	489
$905.00	Oct 23	$22.95	0.47	0.8%	2.56%	3.41%	8	64
$910.00	Oct 23	$19.95	0.44	1.4%	2.22%	3.63%	4	93
$930.00	Oct 30	$14.10	0.34	3.6%	1.57%	5.21%	1	5
$920.00	Oct 23	$16.30	0.38	2.5%	1.82%	4.34%	--	48
$900.00	Oct 16	$23.55	0.50	0.3%	2.62%	2.92%	149	279

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 24,232

Total Puts 19,556

Put/Call Ratio 0.81

Net Difference 4,676

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 138,961

Total Puts 144,284

Average Put/Call Ratio 1.04

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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