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: Jan 19, 2029
Days to expiration: 831
Share price: $397.28
Put/call ratio (OI): 0.82
Put/call ratio (volume): 0.36
ATM implied volatility: 61.0%
Expected move: ±$365.87
Open interest (C / P): 782 / 640

WDC options summary

The WDC options chain for the January 19, 2029 expiration lists 39 call and 31 put contracts, with 831 days until expiration. Open interest stands at 782 calls and 640 puts, a put/call ratio of 0.82, 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 ±$365.87 (92.1%) in Western Digital stock by expiration.

The most open interest sits at the $450.00 call (181 contracts) and the $250.00 put (112 contracts).

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

WDC options chain · January 19, 2029

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
3	2	75.0%	249.60	232.25	250.00	210.00	29.50	30.90	30.60	56.0%	3	90
2	2	74.4%	244.50	226.95	244.00	220.00	32.00	35.75	34.60	55.9%	11	45
1	2	73.2%	241.80	220.00	238.00	230.00	35.35	43.90	37.00	57.2%	10	13
4	—	72.5%	282.75	211.10	226.50	250.00	40.80	47.35	45.35	54.3%	30	112
—	—	—	—	—	—	260.00	47.20	53.30	49.54	55.4%	3	9
1	1	70.9%	259.55	201.75	213.20	270.00	49.00	64.00	55.30	56.3%	1	33
1	—	70.5%	229.47	194.00	211.15	280.00	48.00	68.00	61.45	54.3%	6	37
—	—	—	—	—	—	290.00	61.00	64.75	64.90	54.2%	5	36
18	31	71.6%	205.00	188.70	204.00	300.00	65.75	72.70	67.95	54.8%	42	27
—	—	—	—	—	—	310.00	67.75	75.00	72.70	53.1%	3	44
—	—	—	—	—	—	320.00	72.85	81.40	78.12	53.3%	1	8
4	2	69.8%	181.01	176.10	187.65	330.00	78.15	89.10	83.80	53.7%	3	9
10	1	69.8%	176.00	172.50	183.90	340.00	85.10	93.30	89.95	53.6%	2	4
19	1	71.3%	173.00	169.20	186.00	350.00	93.75	96.80	94.10	53.7%	2	20
—	—	—	—	—	—	360.00	97.25	102.45	101.02	53.0%	—	1
43	80	70.2%	177.20	160.00	178.00	370.00	100.10	108.05	106.26	52.1%	2	12
47	1	68.6%	165.25	156.00	169.05	380.00	102.00	115.95	111.78	51.5%	6	27
6	1	71.6%	160.40	159.00	171.95	390.00	111.95	122.70	117.70	52.4%	4	5
WDC $397.28
9	5	69.0%	155.15	152.05	162.10	400.00	120.45	130.55	125.98	53.1%	2	64
95	1	69.4%	159.20	146.10	164.00	410.00	129.00	135.00	130.70	53.0%	4	6
17	3	69.3%	159.61	142.00	162.00	420.00	126.00	146.00	138.25	51.8%	1	4
8	2	69.1%	149.45	142.20	155.35	430.00	134.00	146.85	137.36	50.8%	2	6
17	1	68.0%	143.17	138.00	149.40	440.00	—	—	—	—	—	—
181	3	68.2%	140.23	136.60	146.40	450.00	146.00	166.00	154.79	51.5%	2	1
11	16	68.9%	156.50	132.00	148.75	460.00	—	—	—	—	—	—
8	1	68.3%	135.00	131.30	141.60	470.00	164.45	172.60	172.72	50.7%	1	5
25	2	67.9%	132.95	126.00	140.20	480.00	—	—	—	—	—	—
3	2	68.1%	140.31	124.95	137.55	490.00	—	—	—	—	—	—
19	13	69.3%	127.85	124.50	138.75	500.00	—	—	—	—	—	—
4	3	68.5%	145.95	118.00	137.25	510.00	—	—	—	—	—	—
5	3	68.5%	132.95	118.60	131.80	520.00	195.80	214.00	219.40	50.3%	—	1
11	12	68.0%	144.55	114.00	130.00	530.00	—	—	—	—	—	—
6	1	68.9%	128.87	114.00	129.90	540.00	210.00	228.00	225.78	53.5%	2	6
13	4	67.5%	156.91	110.55	122.60	550.00	—	—	—	—	—	—
1	—	68.5%	170.85	108.00	125.95	560.00	—	—	—	—	—	—
6	2	68.5%	146.08	107.60	122.50	570.00	—	—	—	—	—	—
9	2	68.1%	114.20	107.45	117.00	580.00	242.00	257.10	251.70	52.3%	2	2
26	2	67.8%	110.00	104.65	114.45	590.00	—	—	—	—	—	—
4	1	69.1%	123.00	104.90	116.65	600.00	—	—	—	—	—	—
26	4	69.1%	104.90	99.90	114.75	620.00	—	—	—	—	—	—
6	3	68.7%	149.50	101.00	108.50	630.00	280.00	295.30	277.80	51.1%	—	1
48	2	67.9%	100.90	97.60	104.75	640.00	290.90	301.45	300.47	50.1%	—	0
7	51	68.1%	97.60	92.25	104.40	660.00	307.00	319.50	317.08	50.6%	2	1
58	167	67.8%	93.68	89.45	99.85	680.00	324.30	335.85	330.38	50.2%	2	11

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 January 19, 2029 expiration, the WDC put/call ratio based on open interest is 0.82 (640 puts vs 782 calls), and 0.36 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 January 19, 2029 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.