Western Digital (WDC) Options Chain

NASDAQ: WDCTechnologyElectronic ComponentsUSD

397.28+3.97 (+1.01%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Expiration date

Expiration: Dec 15, 2028
Days to expiration: 796
Share price: $397.28
Put/call ratio (OI): 1.08
Put/call ratio (volume): 0.76
ATM implied volatility: 61.0%
Expected move: ±$357.76
Open interest (C / P): 7.05K / 7.62K

WDC options summary

The WDC options chain for the December 15, 2028 expiration lists 99 call and 94 put contracts, with 796 days until expiration. Open interest stands at 7,054 calls and 7,617 puts, a put/call ratio of 1.08, which is fairly balanced between calls and puts. At-the-money implied volatility near the $400.00 strike is 61.0%, which implies the market expects a move of about ±$357.76 (90.1%) in Western Digital stock by expiration.

The most open interest sits at the $1,160.00 call (697 contracts) and the $200.00 put (1.07K contracts).

Summary generated from market data by MetaCap's automated system. Methodology

WDC options chain · December 15, 2028

WDC calls and puts by strike price. Shaded cells are in the money.
Calls							Puts
OI	Vol	IV	Last	Bid	Ask	Strike	Bid	Ask	Last	IV	Vol	OI
102	1	78.1%	306.80	285.35	297.65	125.00	7.80	9.00	8.00	60.1%	1	229
73	1	80.6%	328.28	280.00	300.00	130.00	4.25	14.25	11.05	59.9%	20	53
18	1	77.5%	295.97	276.00	293.10	135.00	4.40	14.95	15.00	58.8%	1	29
40	40	176.8%	420.98	346.00	362.55	140.00	5.65	15.70	12.87	58.6%	4	7
4	1	78.5%	336.00	270.00	288.00	145.00	6.35	16.70	15.57	58.2%	1	2
13	1	77.0%	284.93	267.75	281.75	150.00	7.35	14.45	12.75	55.5%	2	153
2	2	76.1%	331.20	263.45	278.40	155.00	8.45	17.85	17.30	57.1%	2	52
0	1	—	361.50	0.00	0.00	160.00	5.70	16.55	15.80	52.6%	1	11
0	1	—	322.95	0.00	0.00	165.00	8.55	21.60	19.31	56.3%	2	5
42	1	76.0%	296.15	252.00	271.80	170.00	14.50	22.05	22.00	58.5%	1	39
0	1	—	317.40	0.00	0.00	175.00	13.60	24.20	21.13	57.6%	3	38
15	1	74.8%	314.47	246.00	264.00	180.00	18.30	23.00	20.50	57.8%	1	65
0	1	—	355.66	0.00	0.00	185.00	17.45	23.75	25.23	56.1%	10	32
8	1	75.3%	273.43	240.00	260.00	190.00	17.80	28.40	26.56	57.1%	2	135
1	—	368.8%	256.34	391.00	400.00	195.00	22.45	27.40	28.51	57.3%	10	68
54	1	74.7%	246.15	234.00	254.00	200.00	25.60	27.30	26.20	57.1%	50	1,071
11	10	72.9%	247.95	230.00	243.15	210.00	27.50	30.60	32.20	56.2%	1	238
10	6	73.3%	242.30	222.00	242.00	220.00	22.40	34.50	34.50	52.7%	35	95
10	1	71.5%	229.32	218.00	231.20	230.00	32.15	39.65	36.65	55.6%	12	100
19	4	71.0%	286.00	212.00	225.85	240.00	36.35	43.45	41.30	55.5%	12	126
9	1	71.1%	235.63	208.00	220.70	250.00	39.65	47.35	44.84	55.1%	1	237
0	1	—	319.00	0.00	0.00	260.00	45.75	51.00	50.59	55.4%	3	133
9	1	71.1%	222.55	199.55	211.25	270.00	48.00	55.50	53.97	54.5%	1	85
18	2	107.9%	340.38	248.00	266.00	280.00	56.55	58.50	58.47	55.1%	2	308
32	1	71.2%	265.00	188.00	206.00	290.00	57.35	63.45	63.45	53.9%	3	72
76	2	71.5%	200.90	186.15	201.00	300.00	65.35	68.55	68.55	54.7%	2	207
29	1	70.4%	200.00	182.15	193.15	310.00	69.25	73.85	73.43	54.3%	3	12
28	1	69.9%	178.00	174.00	192.00	320.00	69.60	78.70	78.68	52.8%	3	24
37	2	69.5%	178.00	172.65	184.30	330.00	72.00	87.80	82.68	52.9%	1	38
41	2	70.7%	189.92	168.00	186.00	340.00	83.05	91.40	88.80	53.8%	2	84
16	6	70.4%	180.65	164.00	182.00	350.00	89.70	95.95	91.80	53.6%	1	135
72	2	69.5%	170.00	160.00	175.90	360.00	95.65	101.25	98.60	53.5%	1	60
5	6	70.2%	173.35	156.00	176.00	370.00	98.00	107.55	101.92	52.6%	3	51
25	6	69.8%	153.76	152.00	172.00	380.00	105.20	111.20	110.00	52.2%	1	83
15	1	69.7%	153.53	153.65	163.55	390.00	108.00	119.05	116.80	51.7%	1	179
WDC $397.28
218	18	70.9%	149.20	149.85	166.00	400.00	112.00	125.10	123.05	51.1%	1	304
13	2	68.9%	167.65	144.55	157.35	410.00	118.00	133.25	129.70	51.3%	36	49
271	1	69.8%	147.68	141.85	158.00	420.00	124.00	140.65	135.15	51.3%	1	33
94	9	68.4%	155.05	138.30	149.75	430.00	133.05	147.10	150.01	51.7%	1	213
42	1	69.3%	151.00	137.70	148.60	440.00	142.90	151.40	149.25	51.8%	4	80
441	3	68.9%	141.30	133.75	145.85	450.00	150.70	158.70	151.50	52.0%	2	588
97	1	68.3%	183.65	130.55	141.25	460.00	157.10	166.80	162.90	52.1%	3	138
55	1	68.4%	141.67	126.00	140.85	470.00	162.50	172.85	167.30	51.5%	20	30
57	12	68.6%	171.45	127.15	135.65	480.00	170.10	181.10	186.33	51.7%	3	111
65	4	68.6%	178.28	125.00	132.90	490.00	174.45	187.80	185.04	50.9%	2	130
124	3	68.6%	123.65	120.90	132.60	500.00	183.90	193.85	189.00	51.0%	1	190
18	1	68.7%	131.39	117.95	131.30	510.00	192.45	201.70	196.50	51.3%	2	16
133	2	68.3%	161.47	114.00	128.90	520.00	194.00	209.45	202.40	50.0%	22	192
100	2	68.1%	126.03	111.70	121.75	540.00	209.60	224.45	217.95	53.1%	4	29
117	1	68.0%	113.68	108.30	120.35	550.00	220.20	230.35	225.35	50.1%	6	108
20	1	67.8%	114.20	104.00	120.00	560.00	227.70	238.95	233.40	50.1%	4	92
16	2	67.8%	151.35	105.05	115.15	570.00	234.75	246.65	239.64	52.4%	3	24
22	4	67.5%	146.23	100.00	114.70	580.00	238.40	256.00	257.97	53.0%	4	182
231	3	68.0%	128.20	102.50	110.70	590.00	251.95	262.05	256.10	52.1%	2	10
479	1	68.2%	107.80	96.00	114.45	600.00	258.70	268.05	262.05	51.1%	9	60
25	2	68.5%	111.38	99.30	109.20	610.00	266.15	277.10	271.30	51.5%	7	306
162	14	68.1%	156.53	97.85	105.35	620.00	0.00	0.00	317.05	—	1	0
20	3	68.0%	137.75	94.65	104.30	630.00	278.00	296.00	290.12	52.5%	2	2
31	3	67.3%	136.00	90.00	102.65	640.00	289.60	301.05	282.14	51.0%	2	8
57	1	67.7%	94.00	88.00	103.15	650.00	0.00	0.00	315.21	—	2	0
28	1	68.5%	105.31	86.00	106.00	660.00	305.65	317.45	310.99	50.8%	2	6
30	2	67.9%	104.95	84.00	102.00	670.00	304.45	324.00	341.00	49.8%	1	1
34	2	67.7%	91.07	84.00	98.00	680.00	318.00	336.00	325.48	51.4%	20	30
21	20	68.3%	91.00	82.00	100.00	690.00	331.40	341.90	323.45	50.1%	—	3
322	20	67.4%	87.75	80.00	94.85	700.00	336.00	350.20	330.50	50.0%	27	109
47	66	67.0%	86.76	78.00	91.70	710.00	347.20	357.05	356.97	49.1%	2	2
82	15	67.7%	83.22	81.50	88.95	720.00	352.00	370.00	357.37	51.0%	2	37
21	6	67.8%	82.63	74.40	91.35	740.00	372.60	383.40	376.25	49.0%	2	22
29	15	67.9%	86.85	72.00	88.85	760.00	389.80	401.20	382.10	49.0%	10	10
26	1	67.5%	85.60	70.00	84.05	780.00	404.00	420.25	390.98	49.5%	3	15
33	2	67.4%	126.81	68.15	83.05	790.00	—	—	—	—	—	—
97	3	68.2%	81.18	68.00	84.70	800.00	420.00	438.00	428.08	49.3%	2	13
24	1	67.3%	93.00	66.00	80.45	810.00	430.00	444.25	419.55	47.9%	4	20
97	2	67.7%	78.50	64.00	82.00	820.00	438.00	456.00	423.35	49.2%	24	25
0	3	12.5%	158.95	0.00	0.00	830.00	—	—	—	—	—	—
27	6	68.3%	92.44	62.00	82.00	840.00	466.00	486.00	418.00	50.1%	2	3
80	1	68.3%	92.35	62.00	80.00	850.00	488.00	504.00	477.30	55.6%	—	2
41	4	66.7%	89.00	60.95	72.05	860.00	474.00	492.00	487.63	48.9%	2	1
4	4	66.9%	146.18	60.00	71.60	870.00	0.00	0.00	459.45	—	6	0
26	2	68.3%	97.85	58.00	77.90	880.00	498.00	518.00	443.00	52.9%	1	1
26	1	68.3%	72.80	58.00	76.00	890.00	—	—	—	—	—	—
41	2	68.3%	76.15	56.00	76.00	900.00	0.00	0.00	488.64	—	2	0
5	1	68.2%	112.00	56.00	73.70	910.00	—	—	—	—	—	—
16	3	68.6%	125.50	56.00	74.00	920.00	529.95	546.00	532.10	47.8%	9	8
10	4	68.1%	73.85	54.00	72.00	930.00	0.00	0.00	532.95	—	2	0
7	6	68.5%	90.10	54.00	71.80	940.00	546.60	566.00	553.02	48.5%	1	13
78	7	67.3%	75.00	52.00	66.75	950.00	557.95	571.55	559.83	46.0%	2	2
5	4	68.4%	105.30	52.00	70.00	960.00	566.00	584.00	571.42	48.0%	3	10
63	94	67.9%	74.55	50.00	68.00	970.00	580.00	598.00	545.28	50.8%	4	19
59	4	67.4%	72.00	50.00	64.40	980.00	585.95	599.45	561.06	45.6%	3	19
536	3	68.3%	58.20	53.00	62.20	1,000.00	602.00	617.75	593.67	45.0%	—	0
23	8	67.6%	81.81	49.30	59.70	1,020.00	0.00	0.00	621.05	—	—	0
48	2	68.5%	54.95	46.00	64.00	1,040.00	642.55	656.25	614.30	45.1%	1	11
60	2	68.3%	61.40	44.00	62.00	1,060.00	660.00	677.95	624.30	47.0%	11	16
67	34	68.4%	57.90	45.55	58.25	1,080.00	—	—	—	—	—	—
276	2	67.9%	49.58	43.30	55.85	1,100.00	0.00	0.00	654.20	—	4	0
95	14	67.3%	48.43	41.65	52.50	1,120.00	0.00	0.00	708.25	—	—	0
131	23	67.8%	47.20	40.00	53.65	1,140.00	737.95	756.00	709.92	47.8%	4	22
697	74	68.6%	47.60	44.00	50.45	1,160.00	758.00	774.00	750.95	46.6%	13	46

In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.

Frequently asked questions

What is the WDC put/call ratio?

For the December 15, 2028 expiration, the WDC put/call ratio based on open interest is 1.08 (7,617 puts vs 7,054 calls), and 0.76 based on today's volume. A ratio above 1 means more puts than calls.

What is WDC's implied volatility?

At-the-money implied volatility for WDC options expiring December 15, 2028 is about 61.0%, an annualized estimate of how much the market expects Western Digital stock to move.

How many WDC option expiration dates are there?

WDC has 16 listed expiration dates, from Oct 16, 2026 to Jan 19, 2029.

What does "in the money" mean?

A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.