Western Digital (WDC) stock

Hard disk drives for data centersMemory chips

Worth $100B

$289.20

-0.20%

Hard disk drives, worth $100BMemory chips

As of Tuesday's close · Live for Pro members at the open

Why is WDC down?

Down 27% from Oct 28 to Nov 10.

Western Digital fell 27% from Oct 28 to Nov 10. 14 points of it came on Nov 5.

Sources: Price history, Nov 10, 2026

−1Long-term trend below a falling 200-day average

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1 more reason, free with an account →6 more reasons why WDC fell 27% since Oct 28, from its filings, with the other side, the timeline, and its peers, for Pro members.

Why WDC still beats the market over three years

Up 762% over the three years to Nov 9 while the S&P 500 rose 80%; down 27% since Oct 28.

4 reasons, from its filings, with the timeline, for Pro members.

Quality Score

Average

In its industry

#3of 6

Data Storage

Checks firing

2of 14

Trending down

From 52-week high

-63.8%

under its best in a year

WDC's Quality Score was unchanged on Tue, Nov 10, at 7.

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Key facts on WDC

Key facts on WDC
The company	Sales up 43% on the year
Latest filing	10-Q, Oct 23 Filed its quarterly report (10-Q) for the quarter to Oct 2, 2026

1 more reason behind WDC's 7, free with an account →4 more reasons behind WDC's 7, for Pro members.

WDC in the news

Thu Nov 5Western Digital drops amid broad selloff on AI regulation fears streetinsider and 1 more WDC closed −17.4% that day.

Outlet counts from the GDELT Project.

Memory and chip stocks rose together

Group

“Anthropic signs $3.4bn gas generator deal to support 1.7GW of data center power”

WDC closed +9.9% that day.

Reported by DCD · covered by 10 outlets

Get an alert on WDC's next big story →

The move is what WDC did that session, not a claim about why.

What moves memory chips

Big Tech spending$201.9B+108%in the quarter, Jul to Sepon a year

What Microsoft, Alphabet, Amazon, and Meta together spent on buildings and equipment, data centers included, in their latest quarter, against a year earlier. Capital spending as each reports it, not a count of chips bought.

Each company's quarterly report (10-Q) on SEC EDGAR, Jul to Sep. Change on the same period a year earlier.

TSMC monthly sales and US export rules, for Pro members.

What's next

Fri Nov 20: Annual meeting, onlineProxy filed Oct 5.

1 more date ahead: dividend dates, for Pro members.

Tested. Our top-scored stocks returned 2.2x the average stock over the next month. Reconstructed after the fact; recorded live since Sep 9, 2026. How we tested it

WDC catalysts

Coming up

After its last 4 reports it closed -6.7% on average, higher 0 of 4 times.

21 past catalysts since 2018, with sizes and sources, for Pro members.

How WDC ranks in Data Storage

WDC is #3 of 6 by Quality Score.

How WDC ranks in Data Storage
Rank	Stock	Checks	Quality Score
1	NTAPNetApp	3/14	11
2	SNDKSandisk	0/14	10
3	WDCWestern Digital	2/14	7
	PEverpure		Open for its score
	STXSeagate Technology		Open for its score

Share count against a year before: WDC +6.1%, NTAP -2.5%, SNDK +0%, STX +7%.

When does WDC report earnings, and what happens after?

Expected to report Thu Jan 28, after the close (in 79 days).

What an earnings report is: every 3 months, a company tells everyone how much it sold and earned. We read the figures, the outlook, and how the stock moved after.

What WDC reported on Oct 22, 2026

The quarter

Sales of $4.4B, 55% more than a year ago; a profit of $4.63 a share, from $3.07.

The quarter that ended Oct 2, from the company's press release

The press release The filing on EDGAR

Where the sales came from

Where the quarter's sales came from
Line	Q1 FY27	Q1 FY26
By product
Cloudup 54%	$3.9B88%	$2.5B89%

Each quarter's sales and their share of its total. Figures as filed (SEC filing, Oct 23)

5 more lines, for Pro members.

The outlook

The outlook the company gave, by period
Measure	Figure
Fiscal second quarter of 2027
Revenue	$5.1B

Figures as filed (SEC filing, Oct 22)

3 more outlook lines, for Pro members.

The numbers

Market value: $100B; today
Sales: $14B; up 43% on the year
Free cash flow: $4.3B; last 12 months

Sales fell 5.3% a year over 5 years, fiscal 2021 to 2026.

Pays $0.70 a share a year.

5 more figures, for Pro members.

No analyst estimates on Breakaway: every figure here is filed.

The whole report on WDC: every line of its sales, every outlook beside the one it replaced, and the company's words, for Pro members.

Close after the report, last 3

-0.7%-13.0%-3.0%

Apr 30Aug 5Oct 22

Reported	When	Gap	Reaction	5 days
Oct 22, 2026After close	After close	-2.3%	-3.0%	+11.6%
Aug 5, 2026After close	After close	-17.4%	-13.0%	-12.5%
Apr 30, 2026After close	After close	-6.5%	-0.7%	+6.8%

WDC closed higher after 0 of its last 4 reports.

All 4 reports, and WDC's Quality Score going into each

WDC sales and profit by year

Sales and profit by year

Sales grew in six of the last seven years, to $13B in 2026. It made a profit in four of the eight years.

WDC has 2 of 14 chart checks firing

Trend1 of 5 shown

MA FAN 21 EMA W.EMA HH/HL 52W HI

Volume1 of 3 shown

VOL VDU U/D VOL

Tight range1 of 3 shown

ATR SQZ SQUEEZE NR7

Buying1 of 3 shown

OBV+CLOSE HI SPRING

The other 10 checks on WDC, and all 14 on every stock.Get in free →

WDC RSI today: 35.4, below its 50-day and 200-day averages

Not scored

RSI 35.4, MACD below signal, below both averages. Not scored.13 readings

The deep dive on WDC

What it does and how it makes money5 findingsIt kept 34 cents of each dollar of sales in fiscal 2026: $4.45B of operating profit on $12.9B of sales.Annual report, filed Aug 14, 2026"The trial commenced on October 8, 2024, and concluded on October 18, 2024, and the jury awarded SPEX damages of $ 316 million for the use of one claim related to U.S. Patent No. 6,088,802 in the past, prior to its expiration in 2017." (10-K for fiscal 2026)SEC filing · Aug 14, 2026
Where it stands5 findingsFor Pro members5 findings on where WDC stands: its cash, debt, and share count, for Pro members
What changed in its filings5 findings"On September 28, 2016, SPEX Technologies, Inc. ('SPEX') filed a lawsuit in the Central District Court against the Company and two of the Company’s current or former wholly-owned subsidiaries …" (10-Q for the quarter to Oct 2, 2026)SEC filing · Oct 23, 2026A new heading in its "Risk Factors" this year: "Long-term agreements expose us to certain execution, financial, and market risks, which could be significant." (10-K for fiscal 2026; not in fiscal 2025's)SEC filing · Aug 14, 2026, against the one of Aug 14, 2025Top Ten Customers made up 73% of its revenue in fiscal 2026, up from 68% in fiscal 2025; another made up 15%, up from 12% in fiscal 2025.SEC filing · Aug 14, 2026
Who holds and trades it4 findingsFor Pro members4 findings on who holds and trades WDC, for Pro members
Against its closest peers3 peersShare count against a year before: WDC +6.1%, NTAP -2.5%, SNDK +0%, STX +7%.

14 more findings on WDC, each with its source, for Pro members.

WDC insider trades

3 insiders sold $5.1M across 6 filings in the last 6 months. No open-⁠market buys on record. The newest:

SellVidyadhara K. Gubbi$825KChief of Global Operationsat $459.87 on Sep 4, filed Sep 8

SellVidyadhara K. GubbiChief of Global Operations$825Kat $459.87 on Sep 4, filed Sep 8

All 6 insider filings on WDC from the last six months, for Pro members.

All WDC insider trades

WDC trades by Congress and the executive branch

7 trades disclosed in the last six months. The newest:

SellJohn McGuire$1K to $15KHousetraded Oct 15, disclosed Nov 6(22 days later)

SellJohn McGuireHouse$1K to $15Ktraded Oct 15, disclosed Nov 6(22 days later)

All 7 trades on WDC disclosed by Congress and the executive branch, for Pro members.Get in free →

See what Congress is buying across the market

WDC's officers and directors

Officers and directors with a Form 4 in the last 12 months.

Irving TanChief Executive Officer · 3 trades
Kris SennesaelChief Financial Officer · no trades on file
Cynthia L. TregillisChief Legal Officer & Corp Sec · 19 trades
Vidyadhara K. GubbiChief of Global Operations · 8 trades
Brian Scott DavisChief Sales & Mrktng Officer · 2 trades
Ahmed Mohammed ShihabChief Product Officer · no trades on file
Brad FellerSVP & Chief Accounting Officer · no trades on file
Martin I. ColeDirector · 7 trades

7 more officers and directors file at WDC.

See insider trades by person

Which ETFs hold WDC?

In ETFs: WDC is 1.1% of SPMO, 0.6% of XLK, and 0.5% of QQQ, the most of the 24 funds Breakaway covers, by each fund's latest filing, Jun 30 to Aug 31, 2026.

About Western Digital

Western Digital is a leading vertically integrated supplier of hard disk drives. The HDD market is essentially a duopoly, with Western Digital and Seagate as the two largest players. Western Digital designs and manufactures its HDDs, with much of the manufacturing and workforce located in Asia. Data centers are the primary consumers of HDDs.

40,000 employeesSan Jose, CAwesterndigital.com

What Western Digital says it competes with

“We believe we are well-positioned in a competitive industry with our leading product portfolio, differentiated innovation engine, global manufacturing footprint, and leadership in driving areal density and cost efficiency.”

From its annual report, SEC filing · Aug 14, 2026

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14 chart checks, read for you
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What would turn WDC's score around: 4 things
2 more filings explained, a plain line each
1 more thing pulling WDC's score down

BreakawayOct 7Ro Khanna bought WDC$1K to $15K, disclosed Oct 7

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See WDC's 14 chart checks

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Straight AnswersStraight Answers

As of Nov 10, 2026: WDC's Quality Score is 7 (Average), #3 of 6 in Data Storage. Insiders sold $5.1M in the last 6 months (Form 4).

What does WDC's Quality Score say?

WDC scores 7 today, which Breakaway calls Average. It is #3 of 6 in Computer Storage Devices by Quality Score, with 2 of 14 chart checks firing. Down 27% from Oct 28 to Nov 10. Breakaway does not say whether to buy any stock: the score does not know your situation, and it is not a recommendation to buy or sell anything. Please do your own research.

What is WDC's Quality Score?

WDC scores 7 today, which Breakaway calls Average (6 to 10). That is #3 of 6 in Computer Storage Devices by Quality Score. The score adds up the chart checks, the trend, the company's filed sales, its profits, the news, insider trades, and Congress trades. The section above lists the lines behind WDC's 7.

Are insiders buying WDC?

3 insiders sold $5.1M across 6 filings in the last 6 months. No open-⁠market buys on record. The newest is Vidyadhara K. Gubbi, Chief of Global Operations, who sold $825K on Sep 4. Every filing, with the scored weight, for Pro members.

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Only on the public pages, which run at least 15 minutes behind. Pro members, and anyone on a guest pass, see real-time prices: the scanner refreshes every 15 seconds, and your watchlist every few seconds, pre-market and after hours included.