Western Digital Corporation (WDC) Stock

NASDAQ

WDC has an Alpha Score of 57 out of 100 (moderate), computed on Oct 26, 2026 from 3 of 4 sub-scores. 14 members of Congress disclosed 29 trades in WDC since 2015: 18 purchases and 10 sales, most recently Gilbert Cisneros (sale, Sep 18, 2026). 8 of the hedge funds AlphaScala tracks reported WDC in 13F filings for the quarter ended Jun 30, 2026; the largest reported position is D.E. Shaw's at $1.21B. Company insiders reported 0 open-market buys and 29 sales on SEC Form 4 in the 90 days to Oct 30, 2026. Its trailing P/E ratio is 14.8 and its net margin 69.2% (key statistics as of Oct 29, 2026).

$366.11

-7.41%

Last price 2026-10-30 20:00 UTC

Source: Finnhub

Alpha Score

Moderate

Signal SnapshotMarket signals →

Alpha Score

57 · Moderate

Alpha Score of 57 reflects moderate overall profile with weak momentum, moderate value, strong quality....

Computed Oct 26, 2026

Congress

29 trades · 14 members

Latest: Gilbert Cisneros, sale on Sep 18, 2026.

STOCK Act disclosures

Insider Activity

-$15.4M net

0 buys and 29 sells in the 90 days to Oct 30, 2026.

Form 4 · last trade Oct 29, 2026

13F Holder

D.E. Shaw

$1.21B reported position; latest action: reduced.

Quarter ended Jun 30, 2026

What is WDC's Alpha Score?

How it works →

Alpha Score of 57 reflects moderate overall profile with weak momentum, moderate value, strong quality. Based on 3 of 4 signals – score is capped at 90 until remaining data ingests.

Momentum

Poor

Value

Moderate

Quality

Strong

Computed from 3 of 4 sub-scores; a sub-score is left out when its inputs are missing, and the composite is capped accordingly.

Computed Oct 26, 2026

A rules-based research rating, not a recommendation to buy or sell.

Which members of Congress traded Western Digital Corporation (WDC)?

Members

Disclosed trades

Purchases

Sales

Most recent: Gilbert Cisneros (sale, Sep 18, 2026); records start Nov 3, 2015.

Politician	Trade date	Type	Amount
Gil Cisneros D-CA · House	2026-09-18	sale	$1k – $15k
Gil Cisneros D-CA · House	2026-07-17	purchase	$1k – $15k
Alan Armstrong R-OK · Senate	2026-03-27	purchase	$1k – $15k
Jefferson Shreve R-IN · House	2025-05-12	sale	$15k – $50k
Jefferson Shreve R-IN · House	2025-04-17	purchase	$15k – $50k
Rob Bresnahan R-PA · House	2025-04-11	sale	$1k – $15k
Rob Bresnahan R-PA · House	2025-04-10	partial sale	$1k – $15k
Jefferson Shreve R-IN · House	2025-03-13	sale	$15k – $50k

From STOCK Act periodic transaction reports. House filings as of Oct 29, 2026. Senate records here end Oct 21, 2026; later Senate trades are not included.

See all WDC political trades →

Which hedge funds own WDC?

From 13F filings

Fund	Shares Held	Position Value	Change vs prior Q
D.E. Shaw David Shaw	1.90M	$1.21B	-29%
Citadel Ken Griffin	658K	$420.20M	+147%
Renaissance Technologies Jim Simons (founder)	537K	$343.29M	-53%
Whale Rock Capital Alex Sacerdote	401K	$255.93M	-3%
Marshall Wace	400K	$255.69M	-57%
Millennium Management Israel Englander	352K	$224.81M	+27%
Bridgewater Associates Ray Dalio	172K	$110.12M	-31%
Point72 Steve Cohen	74K	$47.01M	-88%

13F holdings as of Jun 30, 2026

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Are Western Digital Corporation insiders buying or selling?

SEC Form 4 filings

90 days to Oct 30, 2026

Buys

Sells

Net $

-$15.4M

Unique insiders

Date	Insider	Role	Type	Shares	Value
Oct 29, 26	Cole Martin I	Director	SELL	204	$80K
Oct 29, 26	Cole Martin I	Director	SELL	385	$151K
Oct 29, 26	Cole Martin I	Director	SELL	407	$160K
Oct 29, 26	Cole Martin I	Director	SELL	494	$194K
Oct 29, 26	Cole Martin I	Director	SELL	243	$96K
Oct 29, 26	Cole Martin I	Director	SELL	209	$83K
Oct 29, 26	Cole Martin I	Director	SELL	317	$126K
Oct 29, 26	Cole Martin I	Director	SELL	584	$232K
Oct 29, 26	Cole Martin I	Director	SELL	723	$288K
Oct 29, 26	Cole Martin I	Director	SELL	303	$121K

SEC Form 4 filings as of Oct 30, 2026

See cluster-buy signals across all tickers →

What are WDC's key statistics?

P/E Ratio

14.81

EPS (TTM)

25.96

Beta

2.29

Net Margin

69.20%

ROE

113.77%

Debt / Equity

0.12

52W High

$799.87

52W Low

$121.85

Key statistics as of Oct 29, 2026

How does WDC's valuation compare with the Technology sector?

Metric	WDC	Technology median	Companies in median
P/E ratio	14.8	33.2	164
Net margin	69.20%	11.67%	186
Return on equity	113.77%	15.47%	189

Medians over the Technology stocks whose key statistics were refreshed in the last 35 days (newest Nov 2, 2026). P/E excludes loss-making companies.

What moved WDC recently?

AI-written from the data on this page

Western Digital slips 3% as storage cycle debate intensifies

Oct 26, 2026

Western Digital fell 2.97% to $343.67 on Thursday, giving back some of a rally that has pushed the stock 193% above its 52-week low of $117.23. The pullback comes as Jim Cramer argues the storage-stock cycle has broken, citing SanDisk's 496% year-to-date gain and gross margins of 47-85%. WDC's own fundamentals support the thesis: revenue grew 35.7% year-over-year, EPS surged 363.8%, and net margin hit 73%. The stock trades at 15.37 times earnings, well below the 52-week high of $799.87. Alpha Score stands at 57.4, driven by quality (98.8) and value (65.4), though momentum lags at 33.3. SanDisk perpetual open interest reached $1.73B, the largest among stock perps and 1.86 times SpaceX's SPCX. Watch for Q2 earnings next week to see if margin expansion continues.

AlphaScala analysis on WDC

Latest 1

Three AI stocks to watch this week as traders expect giant movesJun 22, 2026

WDC price chart

What does Western Digital Corporation do?

Western Digital Corporation develops, manufactures, and markets a comprehensive range of data storage devices and solutions for enterprise and consumer applications. The company specializes in hard disk drive (HDD) technology, offering internal hard drives for computers, high-capacity data center drives, external portable storage devices, network-attached storage (NAS) systems for home and office use, and related accessories. Western Digital serves diverse customer segments including original equipment manufacturers, system integrators, resellers, distributors, and end consumers across the Americas, Europe, Asia, the Middle East, and Africa. The company operates in the computer peripherals and electronic technology sectors, addressing critical data storage demands across personal computing, cloud infrastructure, and enterprise data center markets. Founded in 1970 and headquartered in San Jose, California, Western Digital remains a key supplier of storage solutions for an increasingly data-driven world.

CEO

Mr. Tiang Yew Tan

Employees

40,000

Market Cap

$148.44B

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Quick Facts

ExchangeNASDAQ

SectorTechnology

IndustryComputer Hardware

Market Cap$148.44B