WDC

WDC options carry 430K contracts of open interest across 17 expiries, 11% of it in the Oct 16 contract, with 1.48 puts per call.

78% of open interest sits beyond the Oct 16 contract · 134 strikes listed for it · 430K contracts open in all

The Oct 16 contract holds 21.2K calls and 25.7K puts, the most call OI at $500.00 and the most put OI at $420.00; max pain $450.00, −0.98% from the close.

Call OI, contracts

21.2K+192 on the day

Put OI, contracts

25.7K+378 on the day

Puts per call, by OI

1.21all expiries 1.48

Max pain

$450.00−0.98% from the close

Strikes listed

134for this expiry

Revenue $3.75B, +44% on a year earlier; profit $3.19B, +1,000% in the Jul 2026 quarter, consolidated.

WDC trades at 19 times trailing earnings, 18 times book value, revenue +36% over twelve months, a 0.07% dividend yield, market cap $163.85B.

Market cap

$163.85Bon Sep 30

Price to earnings

19consolidated · four quarters to Jul 2026

Trailing EPS

$24.28diluted · consolidated · four quarters to Jul 2026

Price to book

18consolidated · balance sheet to Jul 2026

Book value a share

$24.59consolidated · balance sheet to Jul 2026

Debt to equity

0.12borrowings over equity · consolidated · balance sheet to Jul 2026

Return on equity

130%trailing profit over average equity · consolidated

Dividend yield

0.07%$0.30 a share in 365 days

Price to sales

13market cap over revenue, four quarters to Jul 2026

Shares outstanding

361Mon Sep 30

Revenue, trailing 12 months

$12.92Bfour quarters to Jul 2026

Revenue growth, 12 months

▲ +36%against the twelve months before

Revenue 3-year CAGR

▲ +1.6%trailing twelve months against the twelve months 3 years earlier · consolidated

Profit, trailing 12 months

$9.42Bfour quarters to Jul 2026

Profit growth, 12 months

▲ +400%against the twelve months before

Profit 3-year CAGR

—

13F managers hold 180% of shares, BlackRock, Inc. the largest at 18%, FMR LLC 14% and VANGUARD CAPITAL MANAGEMENT LLC 12%, as filed for the quarter to Jun 2026.

• BlackRock, Inc. 18.3%
• FMR LLC 14.4%
• VANGUARD CAPITAL MANAGEMENT LLC 12.5%
• Other 13F managers 130.4%

Held by 13F managers

180%of shares outstanding

Shares held

633M−3.3% on Mar 2026 among managers filing both

Managers holding

1,7431,340 a quarter earlier

Largest holder

18%BlackRock, Inc.

No open-market insider buying or selling in the last 90 days.

Nothing upcoming on record; the last was a dividend of $0.15 a share, ex-date Sep 8, 2026.

WDC is +0.9% over 20 sessions against the S&P 500's +0.1%, 43% below its 52-week high, realised volatility 48% annualised.

Average true range, 14

$245.3% of the close

Average day's range, 20

$235.0% of the close

Volume against 20 sessions

1.05×6.96M vs 6.68M average

Realised volatility, 20

48%≈ ±3.0% a session · moved more than that on 7 of 20

Realised volatility, 60

78%≈ ±4.9% a session · moved more than that on 15 of 60

Beta to S&P 500, 60

1.77moved with S&P 500 on 30 of 60 sessions

Last 20 sessions

12 up · 8 downof 20

Last 60 sessions

32 up · 28 downof 60

Best session, 250

▲ +16%Jun 15

Worst session, 250

▼ −13%Jun 26

Short sales were 50% of reported volume on Sep 30, 2026, against 42% over the last 25 sessions.

Company

Western Digital Corp.

Exchange

XNAS

SEC CIK

106040

Sessions on record

131

Price source

End of day · delayed

Computed

1 Oct, 10:40 pm IST

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