WDC - Options Database

WDC

WESTERN DIGITAL CORP

$548.39 +12.51%

$557.29 (+1.62%)🌙

as of 07/21 07:15 PM

(7/20 19:17) ◀

Tuesday, July 21, 2026 (7:15pm)

▶ (7/22 21:23)

◀ 7/21 19:15 ▶

Option Volume

Detail

ℹ

Current (07/21) 40,844

Calls: 22,020 (54%)

Puts: 18,824 (46%)

Prior (07/20) 45,546

Calls: 26,467 (58%)

Puts: 19,079 (42%)

Current vs Prior -10.32%

Calls: -16.80% (Calls)

Puts: -1.34% (Puts)

Prior 7-Day Total 371,036

Calls: 180,286 (49%)

Puts: 190,750 (51%)

Prior 7-Day Average 53,005

Calls: 25,755 (49%)

Puts: 27,250 (51%)

Current vs Prior 7-Day Avg -22.94%

Calls: -14.50%

Puts: -30.92%

Sentiment BULLISH

Dollar Volume

Detail

ℹ

Current (07/21) $135.79M

Calls: $95.03M (70%)

Puts: $40.76M (30%)

Prior (07/20) $118.97M

Calls: $57.39M (48%)

Puts: $61.58M (52%)

Current vs Prior +14.14%

Calls: +65.59%

Puts: -33.81%

Prior 7-Day Total $1.17B

Calls: $414.03M (36%)

Puts: $752.20M (64%)

Prior 7-Day Average $166.61M

Calls: $59.15M (36%)

Puts: $107.46M (64%)

Current vs Prior 7-Day Avg -18.50%

Calls: +60.67%

Puts: -62.07%

Sentiment BULLISH

Put/Call Ratio

Detail

ℹ

Current (07/21) 0.85

Prior (07/20) 0.72

Current vs Prior +18.59%

Prior 7-Day Average 1.08

Current vs Prior 7-Day Avg -20.92%

Sentiment NEUTRAL

Open Interest

Detail

ℹ

Current (07/21) 176,779

Calls: 75,869 (43%)

Puts: 100,910 (57%)

Prior (07/20) 174,868

Calls: 67,820 (39%)

Puts: 107,048 (61%)

Current vs Prior +1.09%

Prior 7-Day Total 1,538,142

Calls: 586,137 (38%)

Puts: 952,005 (62%)

Prior 7-Day Average 219,734

Calls: 83,733 (38%)

Puts: 136,000 (62%)

Current vs Prior 7-Day Avg -19.55%

Sentiment BULLISH

Expected Move

Detail

ℹ

WKMO Expiry (07/24) | Next (07/31)Expiry (08/21) | Next (09/18)

Current 9.96% | 16.75%26.52% | 33.96%

Prior 12.42% | 18.38%27.47% | 35.22%

Current vs Prior -19.81% | -8.86%-3.44% | -3.57%

Prior 7-Day Avg 9.39% | 15.60%9.88% | 29.02%

Current vs 7-Day Avg +6.05% | +7.40%+168.47% | +17.03%

Prior 7-Day Eod 12.42% | 18.38%27.47% | 35.22%

Current vs 7-Day Eod -19.81% | -8.86%-3.44% | -3.57%

Sentiment BULLISHBULLISH

Relative Spread

Detail

ℹ

Expiry | Next

Current 36.42% | 19.27%

Calls: 39.47% | 23.90%

Puts: 33.37% | 14.63%

Prior 36.42% | 19.27%

Calls: 39.47% | 23.90%

Puts: 33.37% | 14.63%

Current vs Prior +0.00% | +0.00%

Prior 7-Day Avg 26.97% | 16.06%

Calls: 28.20% | 16.69%

Puts: 25.73% | 15.44%

Current vs 7-Day Avg +35.05% | +19.96%

Liquidity Expensive

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Moderately bullish flow with 70% call dollar volume ($95.03M).

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 BEARISH

Current NEUTRAL

Prior BULLISH

7-Day Avg NEUTRAL

Current NEUTRAL

Prior NEUTRAL

7-Day Avg NEUTRAL

Current BEARISH

Prior BEARISH

7-Day Avg NEUTRAL

Current BEARISH

Prior BULLISH

7-Day Avg BULLISH

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⏰ Backwardation

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📉 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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Covered Calls

Options with the tightest bid-ask spreads (<10%). Lower spreads = better fills and less slippage. Showing top 224 of results (avg 6.8%, best 2.0%)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$550.00	Aug 21	71.00	72.80	$71.90	2.5%	86	0.56	482
$530.00	Aug 21	80.30	82.40	$81.35	2.6%	21	0.61	284
$560.00	Aug 21	65.85	67.90	$66.88	3.1%	36	0.54	187
$490.00	Aug 21	101.90	105.15	$103.53	3.1%	7	0.69	245
$525.00	Aug 21	82.55	85.30	$83.93	3.3%	1	0.62	--

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$620.00	Aug 21	112.75	115.00	$113.88	2.0%	31	0.58	132
$650.00	Aug 21	133.40	136.25	$134.82	2.1%	14	0.65	273
$600.00	Aug 21	99.40	101.65	$100.53	2.2%	25	0.54	443
$570.00	Aug 21	81.05	83.15	$82.10	2.6%	1	0.48	45
$550.00	Aug 21	70.15	72.35	$71.25	3.1%	120	0.44	224

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. 216 found (avg delta 0.67, highest 0.94)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$450.00	Jul 24	99.00	105.60	$102.30	6.5%	13	0.93	71
$457.50	Jul 24	92.00	99.00	$95.50	7.3%	4	0.91	4
$460.00	Jul 24	90.00	96.55	$93.28	7.0%	4	0.91	559
$462.50	Jul 24	88.00	94.35	$91.18	7.0%	1	0.89	--
$467.50	Jul 24	83.00	89.90	$86.45	8.0%	2	0.88	27

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$655.00	Jul 24	103.80	110.00	$106.90	5.8%	46	0.94	107
$652.50	Jul 24	101.00	108.00	$104.50	6.7%	1	0.93	--
$650.00	Jul 24	99.00	106.00	$102.50	6.8%	1	0.92	--
$640.00	Jul 24	89.40	97.00	$93.20	8.2%	31	0.92	54
$645.00	Jul 24	94.05	101.00	$97.53	7.1%	20	0.91	47

Most actively traded options today. High liquidity = easy entry/exit. 510 active (total vol 15.8K, top 582)

CALLS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$650.00	Jul 31	11.55	13.95	$12.75	18.8%	582	0.22	3.0K
$550.00	Jul 24	24.00	26.50	$25.25	9.9%	523	0.52	639
$590.00	Jul 24	9.40	11.75	$10.58	22.2%	501	0.29	247
$600.00	Aug 21	50.35	52.40	$51.38	4.0%	499	0.46	867
$600.00	Jul 24	7.15	9.20	$8.18	25.1%	451	0.24	555

PUTS (5)

Strike	Expiry	Bid	Ask	Mark	Spread	Vol	Delta	OI
$500.00	Jul 24	9.05	12.00	$10.53	28.0%	322	0.23	352
$460.00	Aug 21	29.45	35.30	$32.38	18.1%	172	0.24	1.2K
$565.00	Jul 31	51.15	54.65	$52.90	6.6%	160	0.52	17
$450.00	Jul 24	2.42	3.05	$2.74	23.0%	157	0.07	504
$500.00	Jul 31	23.00	26.15	$24.58	12.8%	144	0.29	283

Term structure inversion — near-term IV higher than far-term IV at the same strike. Signals expected near-term catalyst or volatility event. 123 strikes (avg 20.8%, max 53.1%)

CALLS (5)

Strike	Near Exp	Far Exp	Near IV	Far IV	Back%	Vol	OI
$465.00	Jul 24	Aug 28	173.5%	113.4%	53.1%	7	28
$480.00	Jul 24	Aug 28	161.3%	113.2%	42.5%	12	50
$475.00	Jul 24	Aug 28	161.7%	113.8%	42.1%	25	566
$470.00	Jul 24	Aug 21	164.9%	116.4%	41.7%	7	37
$495.00	Jul 24	Aug 28	157.3%	111.8%	40.7%	76	57

PUTS (5)

Strike	Near Exp	Far Exp	Near IV	Far IV	Back%	Vol	OI
$465.00	Jul 24	Aug 28	173.5%	113.4%	53.1%	66	107
$470.00	Jul 24	Aug 28	164.9%	113.1%	45.8%	99	269
$447.50	Jul 24	Aug 21	171.8%	118.1%	45.5%	11	46
$480.00	Jul 24	Aug 28	161.3%	113.2%	42.5%	49	331
$475.00	Jul 24	Aug 28	161.7%	113.8%	42.1%	48	157

Bull call spreads & bear put spreads with the best risk/reward ratios. Pay a debit upfront, defined max loss. 338 found (best R:R 19.83, avg 2.32)

BULL CALL (5)

Buy	Sell	Expiry	Debit	Max Gain	Max Loss	R:R	BE
$582.50	$585.00	Jul 31	$0.12	$2.38	$0.12	19.83	$582.62
$650.00	$652.50	Jul 24	$0.14	$2.36	$0.14	16.86	$650.14
$645.00	$650.00	Jul 24	$0.35	$4.65	$0.35	13.29	$645.35
$642.50	$645.00	Jul 24	$0.19	$2.31	$0.19	12.16	$642.69
$622.50	$625.00	Jul 31	$0.22	$2.28	$0.22	10.36	$622.72

BEAR PUT (5)

Buy	Sell	Expiry	Debit	Max Gain	Max Loss	R:R	BE
$505.00	$500.00	Aug 21	$0.25	$4.75	$0.25	19.00	$504.75
$545.00	$542.50	Jul 24	$0.13	$2.37	$0.13	18.23	$544.87
$500.00	$497.50	Jul 24	$0.15	$2.35	$0.15	15.67	$499.85
$460.00	$457.50	Jul 24	$0.16	$2.34	$0.16	14.63	$459.84
$490.00	$487.50	Jul 31	$0.17	$2.33	$0.17	13.71	$489.83

Bear call spreads & bull put spreads collecting premium. Receive credit upfront, profit if stock stays in range. 439 found (best R:R 15.67, avg 1.59)

BEAR CALL (5)

Sell	Buy	Expiry	Credit	Max Gain	Max Loss	R:R	BE
$450.00	$457.50	Jul 24	$6.80	$6.80	$0.70	9.71	$456.80
$547.50	$550.00	Jul 24	$2.23	$2.23	$0.27	8.26	$549.73
$457.50	$460.00	Jul 24	$2.22	$2.22	$0.28	7.93	$459.72
$490.00	$492.50	Jul 24	$2.22	$2.22	$0.28	7.93	$492.22
$575.00	$577.50	Jul 24	$2.22	$2.22	$0.28	7.93	$577.22

BULL PUT (5)

Sell	Buy	Expiry	Credit	Max Gain	Max Loss	R:R	BE
$605.00	$602.50	Jul 24	$2.35	$2.35	$0.15	15.67	$602.65
$640.00	$635.00	Jul 24	$4.70	$4.70	$0.30	15.67	$635.30
$635.00	$630.00	Jul 24	$4.55	$4.55	$0.45	10.11	$630.45
$487.50	$485.00	Jul 31	$2.25	$2.25	$0.25	9.00	$485.25
$630.00	$625.00	Jul 24	$4.35	$4.35	$0.65	6.69	$625.65

Same strike, different expirations. Sell near-term, buy far-term. Profits from time decay differential. 126 found (avg debit $15.73, cheapest $8.64)

CALLS (5)

Strike	Near Exp	Far Exp	Net Debit	Near IV	Far IV
$645.00	Jul 24	Jul 31	$9.61	126.8%	114.3%
$450.00	Jul 24	Jul 31	$9.75	161.7%	139.2%
$655.00	Jul 24	Jul 31	$10.42	117.9%	119.1%
$650.00	Jul 24	Jul 31	$10.69	126.6%	120.1%
$465.00	Jul 24	Jul 31	$12.42	173.5%	140.0%

PUTS (5)

Strike	Near Exp	Far Exp	Net Debit	Near IV	Far IV
$440.00	Jul 24	Jul 31	$8.64	165.6%	142.6%
$442.50	Jul 24	Jul 31	$8.74	172.3%	143.4%
$445.00	Jul 24	Jul 31	$8.99	163.6%	140.5%
$447.50	Jul 24	Jul 31	$9.10	171.8%	142.1%
$452.50	Jul 24	Jul 31	$9.26	174.5%	141.1%

Buy call + put at the same strike and expiry. Profits from large moves in either direction. 191 found (cheapest 9.48% of stock, avg 19.84%)

Strike	Expiry	Call$	Put$	Total	BE Low	BE High	Cost%
$555.00	Jul 24	$22.95	$29.03	$51.98	$503.02	$606.98	9.48%
$550.00	Jul 24	$25.25	$27.13	$52.38	$497.62	$602.38	9.55%
$547.50	Jul 24	$27.48	$25.28	$52.76	$494.74	$600.26	9.62%
$562.50	Jul 24	$19.88	$33.38	$53.26	$509.24	$615.76	9.71%
$545.00	Jul 24	$29.15	$24.18	$53.33	$491.67	$598.33	9.72%
$560.00	Jul 24	$21.50	$32.70	$54.20	$505.80	$614.20	9.88%
$565.00	Jul 24	$19.43	$34.83	$54.26	$510.74	$619.26	9.89%
$537.50	Jul 24	$33.13	$21.15	$54.28	$483.22	$591.78	9.90%
$542.50	Jul 24	$30.35	$24.05	$54.40	$488.10	$596.90	9.92%
$535.00	Jul 24	$34.73	$20.30	$55.03	$479.97	$590.03	10.03%

Buy OTM call + OTM put at different strikes. Cheaper than straddles, needs bigger move to profit. 150 found (cheapest 7.76% of stock, avg 18.48%)

Call K	Put K	Expiry	Call$	Put$	Total	BE Low	BE High
$565.00	$540.00	Jul 24	$19.43	$23.13	$42.56	$497.44	$607.56
$562.50	$540.00	Jul 24	$19.88	$23.13	$43.01	$496.99	$605.51
$565.00	$542.50	Jul 24	$19.43	$24.05	$43.48	$499.02	$608.48
$565.00	$545.00	Jul 24	$19.43	$24.18	$43.61	$501.39	$608.61
$562.50	$542.50	Jul 24	$19.88	$24.05	$43.93	$498.57	$606.43
$562.50	$545.00	Jul 24	$19.88	$24.18	$44.06	$500.94	$606.56
$560.00	$540.00	Jul 24	$21.50	$23.13	$44.63	$495.37	$604.63
$565.00	$547.50	Jul 24	$19.43	$25.28	$44.71	$502.79	$609.71
$562.50	$547.50	Jul 24	$19.88	$25.28	$45.16	$502.34	$607.66
$560.00	$542.50	Jul 24	$21.50	$24.05	$45.55	$496.95	$605.55

Sell OTM put spread + OTM call spread. Collect premium, profit if stock stays between breakevens. 241 found (best R:R 61.50, avg credit $5.33)

Put Spread	Call Spread	Expiry	Credit	Max Loss	R:R	BE Low	BE High
458/465	480/485	Aug 7	$7.38	$0.12	61.50	$457.62	$487.38
440/450	465/475	Aug 28	$9.75	$0.25	39.00	$440.25	$474.75
465/470	505/510	Aug 14	$4.86	$0.14	34.71	$465.14	$509.86
440/445	452/460	Aug 21	$7.24	$0.26	27.85	$437.76	$459.74
465/470	475/480	Aug 28	$4.82	$0.18	26.78	$465.18	$479.82
465/470	530/535	Aug 28	$4.82	$0.18	26.78	$465.18	$534.82
450/460	500/510	Aug 28	$9.62	$0.38	25.32	$450.38	$509.62
495/500	520/525	Aug 28	$4.81	$0.19	25.32	$495.19	$524.81
458/465	490/495	Aug 7	$7.18	$0.32	22.44	$457.82	$497.18
460/462	470/480	Aug 21	$9.57	$0.43	22.26	$452.93	$479.57

Buy lower + upper strikes, sell 2x middle strike. Low cost, max profit at the middle strike at expiry. 177 found (best R:R 70.43, cheapest $0.06)

CALLS (5)

Low	Mid	High	Expiry	Debit	Max Gain	R:R
$515.00	$520.00	$525.00	Aug 7	$0.07	$4.93	70.43
$580.00	$590.00	$600.00	Aug 21	$0.15	$9.85	65.67
$600.00	$610.00	$620.00	Aug 21	$0.17	$9.83	57.82
$605.00	$610.00	$615.00	Aug 7	$0.09	$4.91	54.56
$565.00	$570.00	$575.00	Aug 7	$0.11	$4.89	44.45

PUTS (5)

Low	Mid	High	Expiry	Debit	Max Gain	R:R
$525.00	$530.00	$535.00	Aug 21	$0.08	$4.92	61.50
$472.50	$475.00	$477.50	Jul 31	$0.06	$2.44	40.67
$530.00	$535.00	$540.00	Aug 21	$0.13	$4.87	37.46
$540.00	$545.00	$550.00	Aug 21	$0.13	$4.87	37.46
$535.00	$540.00	$545.00	Aug 21	$0.14	$4.86	34.71

Buy 1 option, sell 2 at a different strike (1:2 ratio). Can be entered for a credit. Unlimited risk on naked leg. 11 found (best net $-1.71, 10 credits)

CALLS (5)

Buy K	Sell K	Ratio	Expiry	Net	Max Gain
$645.00	$650.00	1:2	Jul 24	-$1.71	$3.29
$652.50	$655.00	1:2	Jul 24	-$0.60	$1.90
$655.00	$657.50	1:2	Jul 24	-$1.58	$0.92
$627.50	$630.00	1:2	Jul 24	-$1.71	$0.79
$650.00	$652.50	1:2	Jul 24	-$1.78	$0.72

PUTS (4)

Buy K	Sell K	Ratio	Expiry	Net	Max Gain
$452.50	$450.00	1:2	Jul 24	-$1.51	$0.99
$442.50	$440.00	1:2	Jul 24	-$1.52	$0.98
$447.50	$445.00	1:2	Jul 24	-$1.62	$0.88
$462.50	$460.00	1:2	Jul 24	-$2.41	$0.09

Sell OTM calls against 100 shares you own. Collect premium for income, capped upside at strike. Yield% = premium/stock price. 141 found (best yield 13.49%, avg 5.16%)

Strike	Expiry	Bid	Delta	OTM%	Yield%	If Called%	Vol	OI
$550.00	Aug 28	$74.00	0.57	0.3%	13.49%	13.79%	10	7
$555.00	Aug 28	$72.00	0.56	1.2%	13.13%	14.33%	4	1
$550.00	Aug 21	$71.00	0.56	0.3%	12.95%	13.24%	86	482
$560.00	Aug 21	$65.85	0.54	2.1%	12.01%	14.12%	36	187
$570.00	Aug 28	$65.00	0.53	3.9%	11.85%	15.79%	1	--
$550.00	Aug 14	$63.25	0.56	0.3%	11.53%	11.83%	67	20
$570.00	Aug 21	$61.45	0.52	3.9%	11.21%	15.15%	30	182
$580.00	Aug 28	$61.00	0.51	5.8%	11.12%	16.89%	4	7
$555.00	Aug 14	$60.05	0.55	1.2%	10.95%	12.16%	21	18
$585.00	Aug 28	$59.00	0.50	6.7%	10.76%	17.43%	11	8

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 22,020

Total Puts 18,824

Put/Call Ratio 0.85

Net Difference 3,196

Prior's Put/Call Breakdown

Total Calls 26,467

Total Puts 19,079

Put/Call Ratio 0.72

Net Difference 7,388

Prior 7-Day Put/Call Summary

Total Calls 180,286

Total Puts 190,750

Average Put/Call Ratio 1.08

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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