COST - Options Database

COST

COSTCO WHSL CORP NEW

$898.48 +0.35%

$898.40 (-0.01%)🌙

as of 09/21 06:01 PM

(9/18 18:01) ◀

Monday, September 21, 2026 (6:01pm)

▶

◀ 9/21 18:01

Option Volume

Detail

ℹ

Current (09/21) 42,990

Calls: 26,733 (62%)

Puts: 16,257 (38%)

Prior (09/18) 48,927

Calls: 27,089 (55%)

Puts: 21,838 (45%)

Current vs Prior -12.13%

Calls: -1.31% (Calls)

Puts: -25.56% (Puts)

Prior 7-Day Total 248,997

Calls: 126,160 (51%)

Puts: 122,837 (49%)

Prior 7-Day Average 41,499

Calls: 18,022 (51%)

Puts: 17,548 (49%)

Current vs Prior 7-Day Avg +3.59%

Calls: +48.33%

Puts: -7.36%

Sentiment BULLISH

Dollar Volume

Detail

ℹ

Current (09/21) $58.97M

Calls: $39.94M (68%)

Puts: $19.03M (32%)

Prior (09/18) $51.38M

Calls: $25.88M (50%)

Puts: $25.50M (50%)

Current vs Prior +14.78%

Calls: +54.31%

Puts: -25.35%

Prior 7-Day Total $414.78M

Calls: $228.37M (55%)

Puts: $186.41M (45%)

Prior 7-Day Average $69.13M

Calls: $32.62M (55%)

Puts: $26.63M (45%)

Current vs Prior 7-Day Avg -14.69%

Calls: +22.42%

Puts: -28.52%

Sentiment BULLISH

Put/Call Ratio

Detail

ℹ

Current (09/21) 0.61

Prior (09/18) 0.81

Current vs Prior -24.57%

Prior 7-Day Average 0.97

Current vs Prior 7-Day Avg -37.60%

Sentiment BULLISH

Open Interest

Detail

ℹ

Current (09/21) 262,736

Calls: 129,832 (49%)

Puts: 132,904 (51%)

Prior (09/18) 337,653

Calls: 170,928 (51%)

Puts: 166,725 (49%)

Current vs Prior -22.19%

Prior 7-Day Total 1,944,678

Calls: 959,020 (49%)

Puts: 985,658 (51%)

Prior 7-Day Average 324,113

Calls: 159,836 (49%)

Puts: 164,276 (51%)

Current vs Prior 7-Day Avg -18.94%

Sentiment BULLISH

Expected Move

Detail

ℹ

WKMO Expiry (09/25) | Next (10/02)Expiry (10/16) | Next (11/20)

Current 3.41% | 4.25%5.28% | 7.49%

Prior 3.68% | 4.54%0.68% | 5.55%

Current vs Prior -7.16% | -6.36%+682.08% | +34.95%

Prior 7-Day Avg 2.09% | 4.09%1.59% | 5.82%

Current vs 7-Day Avg +63.35% | +4.08%+232.36% | +28.74%

Prior 7-Day Eod 3.68% | 4.54%0.68% | 5.55%

Current vs 7-Day Eod -7.16% | -6.36%+682.08% | +34.95%

Sentiment BULLISHBEARISH

Relative Spread

Detail

ℹ

Expiry | Next

Current 31.43% | 7.18%

Calls: 29.29% | 6.94%

Puts: 33.57% | 7.41%

Prior 31.43% | 7.18%

Calls: 29.29% | 6.94%

Puts: 33.57% | 7.41%

Current vs Prior +0.00% | +0.00%

Prior 7-Day Avg 16.67% | 7.23%

Calls: 17.38% | 7.74%

Puts: 15.95% | 6.72%

Current vs 7-Day Avg +88.58% | -0.65%

Liquidity Expensive

Add Card

🤖 AI Insights

Moderately bullish flow with 68% call dollar volume ($39.94M). Bullish P/C ratio of 0.61. P/C ratio dropping 25% - sentiment shifting bullish. Declining open interest (down 22%) 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 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

🦋 Butterflies

⚖️ Ratio Spreads

🛡️ Covered Calls

🎯

Tightest Spreads

💰

Best Value <$1

📊

High Delta

⚖️

Ratio Spreads

🛡️

Covered Calls

Options with the tightest bid-ask spreads (<10%). Lower spreads = better fills and less slippage. Showing top 166 of results (avg 7.0%, best 2.2%)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$830.00	Oct 16	72.30	73.90	$73.10	2.2%	1	0.90	6
$720.00	Oct 16	177.15	183.45	$180.30	3.5%	--	1.00	12
$800.00	Sep 25	97.05	100.65	$98.85	3.6%	10	0.99	10
$890.00	Oct 16	27.60	28.65	$28.13	3.7%	173	0.57	139
$895.00	Oct 16	24.85	25.80	$25.33	3.8%	28	0.54	144

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$975.00	Oct 2	76.70	78.65	$77.68	2.5%	--	0.92	54
$915.00	Oct 16	30.30	31.25	$30.78	3.1%	21	0.59	269
$905.00	Oct 16	24.45	25.35	$24.90	3.6%	18	0.53	239
$945.00	Oct 9	50.55	52.60	$51.58	4.0%	--	0.79	10
$920.00	Oct 16	33.50	34.95	$34.23	4.2%	42	0.63	492

Affordable options under $1.00 per contract. Great for defined-risk strategies with minimal capital. 1 found (avg $0.93, cheapest $0.93)

CALLS (0)

No calls meet the criteria

PUTS (1)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$845.00	Sep 25	0.85	1.01	$0.93	17.2%	440	0.06	769

In-the-money options with delta >0.50. Higher probability of profit, lower leverage. 174 found (avg delta 0.75, highest 1.00)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$720.00	Oct 16	177.15	183.45	$180.30	3.5%	--	1.00	12
$740.00	Oct 16	157.30	164.05	$160.68	4.2%	--	1.00	32
$750.00	Oct 16	146.75	155.00	$150.88	5.5%	--	1.00	10
$760.00	Oct 16	137.15	145.40	$141.28	5.8%	--	1.00	57
$750.00	Sep 25	145.55	151.50	$148.53	4.0%	6	1.00	1

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$985.00	Sep 25	82.65	90.05	$86.35	8.6%	2	1.00	--
$990.00	Sep 25	89.50	95.70	$92.60	6.7%	11	1.00	--
$1000.00	Sep 25	97.50	103.95	$100.73	6.4%	2	1.00	--
$980.00	Sep 25	79.15	84.05	$81.60	6.0%	2	0.96	--
$975.00	Sep 25	74.45	79.10	$76.78	6.1%	--	0.95	32

Most actively traded options today. High liquidity = easy entry/exit. 503 active (total vol 29.0K, top 1.1K)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$945.00	Sep 25	2.35	2.60	$2.48	10.1%	1.1K	0.13	334
$920.00	Sep 25	6.50	7.30	$6.90	11.6%	1.0K	0.30	920
$1010.00	Oct 2	0.28	6.25	$3.27	182.6%	830	0.09	31
$1060.00	Oct 2	0.00	0.89	$0.45	197.8%	678	0.02	22
$970.00	Sep 25	0.53	0.85	$0.69	46.4%	530	0.04	564

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$860.00	Sep 25	2.20	2.58	$2.39	15.9%	654	0.13	1.1K
$855.00	Sep 25	1.55	1.90	$1.73	20.2%	538	0.10	639
$845.00	Sep 25	0.85	1.01	$0.93	17.2%	440	0.06	769
$870.00	Sep 25	4.00	4.35	$4.18	8.4%	420	0.20	838
$885.00	Sep 25	8.40	9.00	$8.70	6.9%	407	0.34	270

Term structure inversion — near-term IV higher than far-term IV at the same strike. Signals expected near-term catalyst or volatility event. 33 strikes (avg 72.4%, max 92.1%)

CALLS (5)

Strike	Near Exp	Far Exp	Near IV	Far IV	Back%	Vol	OI
$885.00	Sep 25	Oct 30	39.7%	20.7%	92.1%	29	97
$900.00	Sep 25	Oct 30	39.3%	20.8%	88.7%	353	540
$870.00	Sep 25	Oct 30	38.8%	21.1%	84.4%	83	297
$890.00	Sep 25	Oct 30	38.9%	21.1%	84.3%	212	170
$895.00	Sep 25	Oct 30	38.9%	21.2%	83.4%	304	202

PUTS (5)

Strike	Near Exp	Far Exp	Near IV	Far IV	Back%	Vol	OI
$885.00	Sep 25	Oct 30	39.7%	20.7%	92.1%	410	276
$900.00	Sep 25	Oct 30	39.3%	20.8%	88.7%	139	1.1K
$870.00	Sep 25	Oct 30	38.8%	21.1%	84.4%	430	861
$890.00	Sep 25	Oct 30	38.9%	21.1%	84.3%	352	1.0K
$895.00	Sep 25	Oct 30	38.9%	21.2%	83.4%	262	553

Bull call spreads & bear put spreads with the best risk/reward ratios. Pay a debit upfront, defined max loss. 332 found (best R:R 0.89, avg 8.93)

BULL CALL (5)

Buy	Sell	Expiry	Debit	Max Gain	Max Loss	POP	R:R	BE
$865.00	$870.00	Sep 25	$2.65	$2.35	$2.65	84%	0.89	$867.65
$880.00	$885.00	Oct 16	$1.87	$3.13	$1.87	65%	1.67	$881.87
$915.00	$920.00	Oct 30	$0.90	$4.10	$0.90	42%	4.56	$915.90
$940.00	$945.00	Oct 23	$0.33	$4.67	$0.33	28%	14.15	$940.33
$875.00	$880.00	Oct 2	$2.55	$2.45	$2.55	72%	0.96	$877.55

BEAR PUT (5)

Buy	Sell	Expiry	Debit	Max Gain	Max Loss	POP	R:R	BE
$940.00	$935.00	Oct 30	$2.45	$2.55	$2.45	71%	1.04	$937.55
$885.00	$880.00	Oct 30	$0.87	$4.13	$0.87	40%	4.75	$884.13
$880.00	$875.00	Oct 23	$1.08	$3.92	$1.08	36%	3.63	$878.92
$920.00	$915.00	Oct 23	$2.43	$2.57	$2.43	62%	1.06	$917.57
$910.00	$905.00	Oct 9	$2.25	$2.75	$2.25	57%	1.22	$907.75

Bear call spreads & bull put spreads collecting premium. Receive credit upfront, profit if stock stays in range. 269 found (best R:R 0.96, avg 0.30)

BEAR CALL (5)

Sell	Buy	Expiry	Credit	Max Gain	Max Loss	POP	R:R	BE
$1010.00	$1015.00	Oct 2	$2.45	$2.45	$2.55	91%	0.96	$1012.45
$1035.00	$1040.00	Oct 2	$2.01	$2.01	$2.99	93%	0.67	$1037.01
$1055.00	$1060.00	Oct 2	$1.55	$1.55	$3.45	94%	0.45	$1056.55
$1045.00	$1050.00	Sep 25	$1.42	$1.42	$3.58	95%	0.40	$1046.42
$910.00	$915.00	Oct 30	$2.92	$2.92	$2.08	55%	1.40	$912.92

BULL PUT (5)

Sell	Buy	Expiry	Credit	Max Gain	Max Loss	POP	R:R	BE
$790.00	$785.00	Oct 2	$1.28	$1.28	$3.72	95%	0.34	$788.72
$885.00	$880.00	Oct 9	$2.52	$2.52	$2.48	62%	1.02	$882.48
$875.00	$870.00	Oct 23	$2.22	$2.22	$2.78	67%	0.80	$872.78
$890.00	$885.00	Oct 30	$2.76	$2.76	$2.24	56%	1.23	$887.24
$895.00	$890.00	Oct 2	$2.82	$2.82	$2.18	54%	1.29	$892.18

Same strike, different expirations. Sell near-term, buy far-term. Profits from time decay differential. 15 found (avg debit $3.19, cheapest $2.68)

CALLS (5)

Strike	Near Exp	Far Exp	Net Debit	Near IV	Far IV
$885.00	Sep 25	Oct 2	$3.92	39.7%	28.2%
$890.00	Sep 25	Oct 2	$3.73	38.9%	27.7%
$910.00	Sep 25	Oct 2	$3.25	40.1%	29.7%
$915.00	Sep 25	Oct 2	$3.08	39.6%	29.3%
$895.00	Sep 25	Oct 2	$3.36	38.9%	28.6%

PUTS (5)

Strike	Near Exp	Far Exp	Net Debit	Near IV	Far IV
$885.00	Sep 25	Oct 2	$2.68	39.7%	28.2%
$890.00	Sep 25	Oct 2	$2.78	38.9%	27.7%
$910.00	Sep 25	Oct 2	$2.88	40.1%	29.7%
$915.00	Sep 25	Oct 2	$2.55	39.6%	29.3%
$895.00	Sep 25	Oct 2	$3.40	38.9%	28.6%

Buy call + put at the same strike and expiry. Profits from large moves in either direction. 157 found (cheapest 3.22% of stock, avg 5.91%)

Strike	Expiry	Call$	Put$	Total	BE Low	BE High	Cost%
$897.50	Sep 25	$15.38	$13.53	$28.91	$868.59	$926.41	3.22%
$895.00	Sep 25	$16.77	$12.55	$29.32	$865.68	$924.32	3.26%
$900.00	Sep 25	$14.10	$15.30	$29.40	$870.60	$929.40	3.27%
$890.00	Sep 25	$19.27	$10.35	$29.62	$860.38	$919.62	3.30%
$892.50	Sep 25	$17.98	$11.63	$29.61	$862.89	$922.11	3.30%
$902.50	Sep 25	$13.08	$16.77	$29.85	$872.65	$932.35	3.32%
$905.00	Sep 25	$11.70	$18.30	$30.00	$875.00	$935.00	3.34%
$907.50	Sep 25	$10.95	$19.40	$30.35	$877.15	$937.85	3.38%
$887.50	Sep 25	$21.15	$9.63	$30.78	$856.72	$918.28	3.43%
$885.00	Sep 25	$22.38	$8.70	$31.08	$853.92	$916.08	3.46%

Buy OTM call + OTM put at different strikes. Cheaper than straddles, needs bigger move to profit. 150 found (cheapest 2.06% of stock, avg 3.54%)

Call K	Put K	Expiry	Call$	Put$	Total	BE Low	BE High
$917.50	$875.00	Oct 2	$10.93	$7.55	$18.48	$856.52	$935.98
$910.00	$887.50	Sep 25	$10.13	$9.63	$19.76	$867.74	$929.76
$910.00	$890.00	Sep 25	$10.13	$10.35	$20.48	$869.52	$930.48
$915.00	$875.00	Oct 2	$11.28	$7.55	$18.83	$856.17	$933.83
$917.50	$880.00	Oct 2	$10.93	$9.57	$20.50	$859.50	$938.00
$907.50	$887.50	Sep 25	$10.95	$9.63	$20.58	$866.92	$928.08
$907.50	$890.00	Sep 25	$10.95	$10.35	$21.30	$868.70	$928.80
$915.00	$880.00	Oct 2	$11.28	$9.57	$20.85	$859.15	$935.85
$910.00	$892.50	Sep 25	$10.13	$11.63	$21.76	$870.74	$931.76
$917.50	$885.00	Oct 2	$10.93	$11.38	$22.31	$862.69	$939.81

Sell OTM put spread + OTM call spread. Collect premium, profit if stock stays between breakevens. 260 found (best R:R 0.92, avg credit $1.54)

Put Spread	Call Spread	Expiry	Credit	Max Loss	POP	R:R	BE Low	BE High
785/790	935/940	Oct 2	$2.40	$2.60	72%	0.92	$787.60	$937.40
820/825	945/950	Oct 23	$2.60	$2.40	64%	1.08	$822.40	$947.60
785/790	928/930	Oct 2	$2.38	$2.62	67%	0.91	$787.62	$929.88
800/805	945/950	Oct 23	$2.29	$2.71	68%	0.85	$802.71	$947.29
785/790	930/935	Oct 2	$2.21	$2.79	69%	0.79	$787.79	$932.21
770/775	940/945	Oct 16	$2.12	$2.88	71%	0.74	$772.88	$942.12
785/790	922/925	Oct 2	$2.48	$2.52	63%	0.98	$787.52	$924.98
760/765	940/945	Oct 16	$2.04	$2.96	71%	0.69	$762.96	$942.04
770/775	930/935	Oct 16	$2.33	$2.67	66%	0.87	$772.67	$932.33
805/810	945/950	Oct 23	$2.21	$2.79	67%	0.79	$807.79	$947.21

Buy lower + upper strikes, sell 2x middle strike. Low cost, max profit at the middle strike at expiry. 251 found (best R:R 82.33, cheapest $0.05)

CALLS (5)

Low	Mid	High	Expiry	Debit	Max Gain	POP	R:R
$895.00	$900.00	$905.00	Oct 2	$0.06	$4.94	9%	82.33
$895.00	$900.00	$905.00	Oct 9	$0.06	$4.94	8%	82.33
$875.00	$880.00	$885.00	Oct 30	$0.07	$4.93	6%	70.43
$945.00	$950.00	$955.00	Oct 9	$0.06	$4.94	5%	82.33
$925.00	$930.00	$935.00	Oct 23	$0.09	$4.91	6%	54.56

PUTS (5)

Low	Mid	High	Expiry	Debit	Max Gain	POP	R:R
$900.00	$905.00	$910.00	Oct 2	$0.11	$4.89	8%	44.45
$875.00	$880.00	$885.00	Sep 25	$0.19	$4.81	10%	25.32
$895.00	$900.00	$905.00	Oct 16	$0.12	$4.88	7%	40.67
$845.00	$850.00	$855.00	Sep 25	$0.06	$4.94	4%	82.33
$900.00	$905.00	$910.00	Oct 23	$0.11	$4.89	6%	44.45

Buy 1 option, sell 2 at a different strike (1:2 ratio). Can be entered for a credit. Unlimited risk on naked leg. 276 found (best net $-0.35, 259 credits)

CALLS (5)

Buy K	Sell K	Ratio	Expiry	Net	Max Gain
$1035.00	$1060.00	1:2	Oct 30	-$0.54	$24.46
$1065.00	$1070.00	1:2	Oct 16	-$0.08	$4.92
$1055.00	$1060.00	1:2	Oct 16	-$0.07	$4.93
$1060.00	$1075.00	1:2	Oct 23	-$0.31	$14.69
$1060.00	$1065.00	1:2	Sep 25	-$0.10	$4.90

PUTS (5)

Buy K	Sell K	Ratio	Expiry	Net	Max Gain
$800.00	$780.00	1:2	Oct 30	-$0.35	$19.65
$780.00	$760.00	1:2	Oct 23	-$0.13	$19.87
$790.00	$780.00	1:2	Oct 23	-$0.13	$9.87
$815.00	$810.00	1:2	Oct 2	-$0.04	$4.96
$730.00	$725.00	1:2	Oct 2	$0.00	$5.00

Sell OTM calls against 100 shares you own. Collect premium for income, capped upside at strike. Yield% = premium/stock price. 133 found (best yield 2.37%, avg 0.82%)

Strike	Expiry	Bid	Delta	OTM%	Yield%	If Called%	Vol	OI
$910.00	Oct 30	$21.25	0.45	1.3%	2.37%	3.65%	14	33
$905.00	Oct 30	$23.15	0.47	0.7%	2.58%	3.30%	13	21
$900.00	Oct 30	$25.35	0.50	0.2%	2.82%	2.99%	35	28
$920.00	Oct 30	$17.35	0.39	2.4%	1.93%	4.33%	1	8
$925.00	Oct 30	$16.00	0.37	3.0%	1.78%	4.73%	17	4
$915.00	Oct 30	$18.25	0.42	1.8%	2.03%	3.87%	2	5
$900.00	Oct 23	$24.00	0.50	0.2%	2.67%	2.84%	297	397
$905.00	Oct 23	$21.50	0.47	0.7%	2.39%	3.12%	38	64
$930.00	Oct 30	$13.60	0.34	3.5%	1.51%	5.02%	26	6
$915.00	Oct 23	$17.00	0.41	1.8%	1.89%	3.73%	1	40

Current 5-Minute Volume Snapshots

Time (HH:MM)	Total Volume	Call Volume	Put Volume	Volume Change
Loading data...

Prior's 5-Minute Volume Snapshots

Time (HH:MM)	Total Volume	Call Volume	Put Volume	Volume Change
Loading data...

Current Put/Call Breakdown

Total Calls 26,733

Total Puts 16,257

Put/Call Ratio 0.61

Net Difference 10,476

Prior's Put/Call Breakdown

Total Calls 27,089

Total Puts 21,838

Put/Call Ratio 0.81

Net Difference 5,251

Prior 7-Day Put/Call Summary

Total Calls 126,160

Total Puts 122,837

Average Put/Call Ratio 0.97

Ratio Trend Falling

Daily Put/Call History (Last 7 Days)

Date	Calls	Puts	Ratio	Net Diff
Loading data...

Upcoming Earnings - 2 Weeks Prior

Loading earnings data...

Upcoming Earnings - 1 Week Prior

Loading earnings data...

Earnings This Week

Loading earnings data...

Earnings - Day Before / Day After

Loading earnings data...

Options Activity Around Earnings

Ticker	Earnings Date	Days Away	Call Volume	Put Volume	IV Rank
Loading data...

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

Add Card