WDC - Options Database

WDC

WESTERN DIGITAL CORP

$378.51 +3.89%

$379.39 (+0.23%)🌙

as of 10/21 06:02 PM

(10/21 14:05) ◀

Wednesday, October 21, 2026 (6:02pm)

▶ (10/22 14:05)

◀ 10/21 18:02 ▶

Option Volume

Detail

ℹ

Current (10/21) 55,858

Calls: 40,148 (72%)

Puts: 15,710 (28%)

Prior (10/20) 44,019

Calls: 29,737 (68%)

Puts: 14,282 (32%)

Current vs Prior +26.90%

Calls: +35.01% (Calls)

Puts: +10.00% (Puts)

Prior 7-Day Total 422,043

Calls: 249,245 (59%)

Puts: 172,798 (41%)

Prior 7-Day Average 60,291

Calls: 35,606 (59%)

Puts: 24,685 (41%)

Current vs Prior 7-Day Avg -7.35%

Calls: +12.75%

Puts: -36.36%

Sentiment BULLISH

Dollar Volume

Detail

ℹ

Current (10/21) $154.25M

Calls: $124.88M (81%)

Puts: $29.37M (19%)

Prior (10/20) $94.20M

Calls: $75.59M (80%)

Puts: $18.60M (20%)

Current vs Prior +63.75%

Calls: +65.20%

Puts: +57.86%

Prior 7-Day Total $716.77M

Calls: $386.78M (54%)

Puts: $329.99M (46%)

Prior 7-Day Average $102.40M

Calls: $55.25M (54%)

Puts: $47.14M (46%)

Current vs Prior 7-Day Avg +50.64%

Calls: +126.01%

Puts: -37.70%

Sentiment BULLISH

Put/Call Ratio

Detail

ℹ

Current (10/21) 0.39

Prior (10/20) 0.48

Current vs Prior -18.53%

Prior 7-Day Average 0.68

Current vs Prior 7-Day Avg -42.57%

Sentiment BULLISH

Open Interest

Detail

ℹ

Current (10/21) 543,713

Calls: 244,542 (45%)

Puts: 299,171 (55%)

Prior (10/20) 284,375

Calls: 149,885 (53%)

Puts: 134,490 (47%)

Current vs Prior +91.20%

Prior 7-Day Total 2,195,487

Calls: 1,113,848 (51%)

Puts: 1,081,639 (49%)

Prior 7-Day Average 313,641

Calls: 159,121 (51%)

Puts: 154,519 (49%)

Current vs Prior 7-Day Avg +73.36%

Sentiment BULLISH

Expected Move

Detail

ℹ

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

Current 8.64% | 11.33%16.24% | 21.26%

Prior 8.79% | 11.20%16.21% | 21.68%

Current vs Prior -1.74% | +1.11%+0.15% | -1.92%

Prior 7-Day Avg 6.87% | 10.55%10.73% | 19.78%

Current vs 7-Day Avg +25.83% | +7.36%+51.33% | +7.51%

Prior 7-Day Eod 8.79% | 11.20%16.21% | 21.68%

Current vs 7-Day Eod -1.74% | +1.11%+0.15% | -1.92%

Sentiment BULLISHBEARISH

Relative Spread

Detail

ℹ

Expiry | Next

Current 6.57% | 4.73%

Calls: 8.59% | 5.75%

Puts: 4.55% | 3.71%

Prior 32.02% | 13.38%

Calls: 42.27% | 15.55%

Puts: 21.76% | 11.20%

Current vs Prior -79.48% | -64.65%

Prior 7-Day Avg 27.06% | 12.33%

Calls: 33.21% | 12.89%

Puts: 20.90% | 11.75%

Current vs 7-Day Avg -75.72% | -61.62%

Liquidity Acceptable

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🤖 AI Insights

Strong bullish conviction with 81% of dollar volume in calls ($124.88M) vs puts ($29.37M). Elevated premium activity with dollar volume up 64% vs prior. Dollar volume significantly above 7-day average (51% higher). Extreme bullish P/C ratio of 0.39 - heavy call buying (40,148 calls vs 15,710 puts).

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 BULLISH

7-Day Avg NEUTRAL

Current BEARISH

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 71 of results (avg 7.0%, best 3.5%)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$352.50	Oct 23	31.10	32.20	$31.65	3.5%	15	0.80	196
$365.00	Oct 30	27.60	28.60	$28.10	3.6%	34	0.63	65
$362.50	Nov 20	37.75	39.25	$38.50	3.9%	1	0.62	32
$365.00	Oct 23	22.70	23.65	$23.17	4.1%	1.3K	0.66	153
$347.50	Oct 23	34.60	36.15	$35.38	4.4%	23	0.80	90

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$392.50	Oct 30	27.95	29.05	$28.50	3.9%	11	0.58	56
$400.00	Nov 20	40.60	42.35	$41.48	4.2%	46	0.57	1.4K
$395.00	Oct 30	29.50	30.80	$30.15	4.3%	23	0.60	277
$377.50	Oct 23	14.70	15.35	$15.02	4.3%	28	0.47	41
$395.00	Oct 23	24.65	25.75	$25.20	4.4%	51	0.64	427

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. 184 found (avg delta 0.71, highest 1.00)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$307.50	Oct 23	66.50	76.25	$71.38	13.7%	30	1.00	--
$310.00	Oct 23	64.10	74.10	$69.10	14.5%	30	1.00	2
$317.50	Oct 23	56.95	66.45	$61.70	15.4%	5	1.00	50
$320.00	Oct 23	54.50	64.40	$59.45	16.7%	2	0.97	18
$322.50	Oct 23	52.25	62.20	$57.23	17.4%	700	0.96	736

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$450.00	Oct 23	67.40	77.15	$72.28	13.5%	3	0.95	56
$437.50	Oct 23	55.40	65.25	$60.33	16.3%	10	0.94	8
$445.00	Oct 23	63.15	72.30	$67.72	13.5%	4	0.94	53
$442.50	Oct 23	60.60	70.00	$65.30	14.4%	1	0.93	1
$440.00	Oct 23	57.85	67.80	$62.83	15.8%	18	0.93	158

Most actively traded options today. High liquidity = easy entry/exit. 384 active (total vol 34.8K, top 3.1K)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$340.00	Nov 20	48.25	57.15	$52.70	16.9%	3.1K	0.74	4.7K
$330.00	Nov 6	50.80	60.60	$55.70	17.6%	2.0K	0.83	3.5K
$400.00	Oct 23	6.85	7.30	$7.07	6.4%	1.5K	0.30	1.6K
$365.00	Oct 23	22.70	23.65	$23.17	4.1%	1.3K	0.66	153
$362.50	Oct 23	24.10	25.45	$24.78	5.4%	1.2K	0.68	102

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$335.00	Oct 23	1.71	3.15	$2.43	59.3%	528	0.12	516
$350.00	Nov 6	10.65	12.15	$11.40	13.2%	348	0.29	255
$375.00	Oct 23	13.35	14.00	$13.68	4.8%	320	0.45	414
$380.00	Oct 23	15.95	17.45	$16.70	9.0%	281	0.50	458
$390.00	Nov 20	32.65	38.70	$35.67	17.0%	243	0.52	1.5K

Term structure inversion — near-term IV higher than far-term IV at the same strike. Signals expected near-term catalyst or volatility event. 65 strikes (avg 94.3%, max 150.2%)

CALLS (5)

Strike	Near Exp	Far Exp	Near IV	Far IV	Back%	Vol	OI
$405.00	Oct 23	Nov 27	149.3%	65.1%	129.1%	258	452
$360.00	Oct 23	Nov 27	142.5%	64.2%	121.9%	112	1.6K
$357.50	Oct 23	Nov 6	148.9%	67.2%	121.5%	26	114
$370.00	Oct 23	Nov 27	140.1%	63.8%	119.5%	379	906
$365.00	Oct 23	Nov 27	141.6%	64.6%	119.1%	1.3K	176

PUTS (5)

Strike	Near Exp	Far Exp	Near IV	Far IV	Back%	Vol	OI
$337.50	Oct 23	Nov 20	167.3%	66.8%	150.2%	76	168
$342.50	Oct 23	Nov 20	153.2%	66.6%	130.0%	15	135
$360.00	Oct 23	Nov 27	142.5%	64.2%	121.9%	193	505
$350.00	Oct 23	Nov 27	142.6%	64.3%	121.7%	215	931
$357.50	Oct 23	Nov 6	148.9%	67.2%	121.5%	128	176

Bull call spreads & bear put spreads with the best risk/reward ratios. Pay a debit upfront, defined max loss. 245 found (best R:R 15.67, avg 3.81)

BULL CALL (5)

Buy	Sell	Expiry	Debit	Max Gain	Max Loss	POP	R:R	BE
$340.00	$345.00	Nov 6	$1.55	$3.45	$1.55	77%	2.23	$341.55
$375.00	$380.00	Nov 27	$0.65	$4.35	$0.65	56%	6.69	$375.65
$352.50	$360.00	Nov 20	$3.05	$4.45	$3.05	67%	1.46	$355.55
$390.00	$395.00	Nov 27	$0.65	$4.35	$0.65	49%	6.69	$390.65
$370.00	$375.00	Nov 6	$1.22	$3.78	$1.22	58%	3.10	$371.22

BEAR PUT (5)

Buy	Sell	Expiry	Debit	Max Gain	Max Loss	POP	R:R	BE
$415.00	$410.00	Nov 6	$0.30	$4.70	$0.30	70%	15.67	$414.70
$385.00	$380.00	Nov 6	$0.15	$4.85	$0.15	52%	32.33	$384.85
$390.00	$385.00	Nov 20	$0.67	$4.33	$0.67	52%	6.46	$389.33
$430.00	$420.00	Nov 20	$5.40	$4.60	$5.40	71%	0.85	$424.60
$370.00	$365.00	Nov 6	$0.60	$4.40	$0.60	42%	7.33	$369.40

Bear call spreads & bull put spreads collecting premium. Receive credit upfront, profit if stock stays in range. 187 found (best R:R 2.47, avg 0.77)

BEAR CALL (5)

Sell	Buy	Expiry	Credit	Max Gain	Max Loss	POP	R:R	BE
$425.00	$430.00	Nov 13	$3.20	$3.20	$1.80	71%	1.78	$428.20
$405.00	$407.50	Oct 23	$2.30	$2.30	$0.20	72%	11.50	$407.30
$380.00	$385.00	Nov 27	$4.15	$4.15	$0.85	46%	4.88	$384.15
$435.00	$440.00	Oct 30	$2.15	$2.15	$2.85	80%	0.75	$437.15
$410.00	$415.00	Nov 13	$2.97	$2.97	$2.03	65%	1.46	$412.97

BULL PUT (5)

Sell	Buy	Expiry	Credit	Max Gain	Max Loss	POP	R:R	BE
$330.00	$325.00	Nov 27	$3.56	$3.56	$1.44	78%	2.47	$326.44
$307.50	$305.00	Oct 30	$1.81	$1.81	$0.69	90%	2.62	$305.69
$330.00	$325.00	Nov 13	$2.50	$2.50	$2.50	79%	1.00	$327.50
$330.00	$325.00	Nov 6	$2.29	$2.29	$2.71	81%	0.85	$327.71
$365.00	$362.50	Nov 6	$2.33	$2.33	$0.17	61%	13.71	$362.67

Same strike, different expirations. Sell near-term, buy far-term. Profits from time decay differential. 32 found (avg debit $5.04, cheapest $3.77)

CALLS (5)

Strike	Near Exp	Far Exp	Net Debit	Near IV	Far IV
$397.50	Oct 23	Oct 30	$3.77	149.2%	87.2%
$390.00	Oct 23	Oct 30	$4.52	143.0%	87.0%
$380.00	Oct 23	Oct 30	$4.67	142.8%	87.2%
$392.50	Oct 23	Oct 30	$4.62	142.4%	87.3%
$362.50	Oct 23	Oct 30	$5.97	142.3%	87.3%

PUTS (5)

Strike	Near Exp	Far Exp	Net Debit	Near IV	Far IV
$397.50	Oct 23	Oct 30	$5.60	149.2%	87.2%
$390.00	Oct 23	Oct 30	$6.80	143.0%	87.0%
$380.00	Oct 23	Oct 30	$4.93	142.8%	87.2%
$392.50	Oct 23	Oct 30	$3.35	142.4%	87.3%
$362.50	Oct 23	Oct 30	$4.80	142.3%	87.3%

Buy call + put at the same strike and expiry. Profits from large moves in either direction. 113 found (cheapest 8.11% of stock, avg 12.73%)

Strike	Expiry	Call$	Put$	Total	BE Low	BE High	Cost%
$372.50	Oct 23	$17.88	$12.83	$30.71	$341.79	$403.21	8.11%
$375.00	Oct 23	$17.25	$13.68	$30.93	$344.07	$405.93	8.17%
$377.50	Oct 23	$16.00	$15.02	$31.02	$346.48	$408.52	8.20%
$380.00	Oct 23	$14.73	$16.70	$31.43	$348.57	$411.43	8.30%
$370.00	Oct 23	$20.15	$11.53	$31.68	$338.32	$401.68	8.37%
$367.50	Oct 23	$21.53	$10.48	$32.01	$335.49	$399.51	8.46%
$385.00	Oct 23	$12.38	$19.77	$32.15	$352.85	$417.15	8.49%
$390.00	Oct 23	$10.63	$21.70	$32.33	$357.67	$422.33	8.54%
$365.00	Oct 23	$23.17	$9.63	$32.80	$332.20	$397.80	8.67%
$382.50	Oct 23	$13.55	$19.30	$32.85	$349.65	$415.35	8.68%

Buy OTM call + OTM put at different strikes. Cheaper than straddles, needs bigger move to profit. 150 found (cheapest 5.60% of stock, avg 10.48%)

Call K	Put K	Expiry	Call$	Put$	Total	BE Low	BE High
$392.50	$370.00	Oct 23	$9.68	$11.53	$21.21	$348.79	$413.71
$390.00	$370.00	Oct 23	$10.63	$11.53	$22.16	$347.84	$412.16
$392.50	$372.50	Oct 23	$9.68	$12.83	$22.51	$349.99	$415.01
$387.50	$370.00	Oct 23	$11.48	$11.53	$23.01	$346.99	$410.51
$390.00	$372.50	Oct 23	$10.63	$12.83	$23.46	$349.04	$413.46
$387.50	$372.50	Oct 23	$11.48	$12.83	$24.31	$348.19	$411.81
$392.50	$375.00	Oct 23	$9.68	$13.68	$23.36	$351.64	$415.86
$385.00	$370.00	Oct 23	$12.38	$11.53	$23.91	$346.09	$408.91
$390.00	$375.00	Oct 23	$10.63	$13.68	$24.31	$350.69	$414.31
$387.50	$375.00	Oct 23	$11.48	$13.68	$25.16	$349.84	$412.66

Sell OTM put spread + OTM call spread. Collect premium, profit if stock stays between breakevens. 148 found (best R:R 10.36, avg credit $2.57)

Put Spread	Call Spread	Expiry	Credit	Max Loss	POP	R:R	BE Low	BE High
325/330	425/430	Nov 6	$4.56	$0.44	56%	10.36	$325.44	$429.56
325/330	435/440	Nov 6	$4.31	$0.69	59%	6.25	$325.69	$439.31
350/355	425/430	Nov 6	$4.90	$0.10	42%	49.00	$350.10	$429.90
305/310	425/430	Nov 13	$4.09	$0.91	58%	4.49	$305.91	$429.09
335/340	425/430	Nov 13	$4.73	$0.27	45%	17.52	$335.27	$429.73
325/330	420/425	Nov 27	$4.83	$0.17	43%	28.41	$325.17	$424.83
325/330	425/430	Nov 27	$4.71	$0.29	45%	16.24	$325.29	$429.71
350/355	435/440	Nov 6	$4.65	$0.35	45%	13.29	$350.35	$439.65
325/330	415/420	Nov 6	$4.24	$0.76	52%	5.58	$325.76	$419.24
325/330	410/415	Nov 6	$4.22	$0.78	48%	5.41	$325.78	$414.22

Buy lower + upper strikes, sell 2x middle strike. Low cost, max profit at the middle strike at expiry. 163 found (best R:R 70.43, cheapest $0.05)

CALLS (5)

Low	Mid	High	Expiry	Debit	Max Gain	POP	R:R
$400.00	$405.00	$410.00	Nov 6	$0.07	$4.93	6%	70.43
$325.00	$330.00	$335.00	Nov 13	$0.10	$4.90	6%	49.00
$385.00	$387.50	$390.00	Oct 23	$0.05	$2.45	5%	49.00
$435.00	$440.00	$445.00	Nov 13	$0.07	$4.93	3%	70.43
$390.00	$392.50	$395.00	Oct 23	$0.07	$2.43	5%	34.71

PUTS (5)

Low	Mid	High	Expiry	Debit	Max Gain	POP	R:R
$350.00	$355.00	$360.00	Nov 27	$0.14	$4.86	5%	34.71
$345.00	$347.50	$350.00	Oct 30	$0.08	$2.42	3%	30.25
$307.50	$310.00	$312.50	Oct 23	$0.06	$2.44	2%	40.67
$310.00	$315.00	$320.00	Nov 20	$0.13	$4.87	3%	37.46
$317.50	$320.00	$322.50	Oct 23	$0.08	$2.42	1%	30.25

Buy 1 option, sell 2 at a different strike (1:2 ratio). Can be entered for a credit. Unlimited risk on naked leg. 55 found (best net $--, 54 credits)

CALLS (5)

Buy K	Sell K	Ratio	Expiry	Net	Max Gain
$435.00	$437.50	1:2	Oct 23	$0.00	$2.50
$445.00	$447.50	1:2	Oct 23	-$0.15	$2.35
$442.50	$445.00	1:2	Oct 23	-$0.68	$1.82
$447.50	$450.00	1:2	Oct 23	-$0.77	$1.73
$440.00	$442.50	1:2	Oct 23	-$0.86	$1.64

PUTS (5)

Buy K	Sell K	Ratio	Expiry	Net	Max Gain
$310.00	$307.50	1:2	Oct 23	-$0.16	$2.34
$312.50	$310.00	1:2	Oct 23	-$0.24	$2.26
$307.50	$305.00	1:2	Oct 23	-$0.42	$2.08
$337.50	$335.00	1:2	Oct 23	-$0.76	$1.74
$317.50	$315.00	1:2	Oct 23	-$0.55	$1.95

Sell OTM calls against 100 shares you own. Collect premium for income, capped upside at strike. Yield% = premium/stock price. 109 found (best yield 6.37%, avg 2.58%)

Strike	Expiry	Bid	Delta	OTM%	Yield%	If Called%	Vol	OI
$395.00	Nov 27	$24.10	0.47	4.4%	6.37%	10.72%	--	21
$380.00	Nov 27	$30.00	0.54	0.4%	7.93%	8.32%	3	12
$410.00	Nov 27	$17.35	0.40	8.3%	4.58%	12.90%	--	66
$380.00	Nov 20	$28.70	0.53	0.4%	7.58%	7.98%	118	722
$385.00	Nov 20	$26.20	0.50	1.7%	6.92%	8.64%	21	5
$400.00	Nov 20	$20.30	0.42	5.7%	5.36%	11.04%	433	865
$390.00	Nov 27	$23.45	0.49	3.0%	6.20%	9.23%	4	16
$390.00	Nov 20	$23.55	0.47	3.0%	6.22%	9.26%	65	223
$400.00	Nov 27	$19.05	0.44	5.7%	5.03%	10.71%	5	50
$385.00	Nov 27	$24.90	0.51	1.7%	6.58%	8.29%	--	20

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 40,148

Total Puts 15,710

Put/Call Ratio 0.39

Net Difference 24,438

Prior's Put/Call Breakdown

Total Calls 29,737

Total Puts 14,282

Put/Call Ratio 0.48

Net Difference 15,455

Prior 7-Day Put/Call Summary

Total Calls 249,245

Total Puts 172,798

Average Put/Call Ratio 0.68

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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