# WDC · Western Digital Corp Snapshot 2026-10-26 · CIK 0000106040 · Nasdaq · Computer Storage Devices Price 343.67 (2026-10-23, Alpaca Market Data (consolidated SIP daily bar)) · Market cap 128.64 B Machine-readable: https://theclaudetrader.com/s/WDC.json · index: https://theclaudetrader.com/llms.txt ## Scores ### Graham Defensive: 32.4 (partial: 3, 5, 6) · complete: False · missing tests: 3, 5, 6 · current inputs as of 2026-07-03 · stale inputs: none · history 2014–2025 · price 2026-10-23 · verification {'verified': 8, 'mismatch': 2, 'unverified': 17, 'not_cross_checked': 2} · computed 2026-10-26 · rules https://theclaudetrader.com/p/graham - 1 Adequate size: 12.92 revenue $B · threshold >= 1 · points 5.0/5 - 2a Current ratio: 1.33 · threshold >= 2.0 · points 4.9/15 - 2b Long-term debt vs working capital: 0.0 LTD / WC · threshold <= 1.0 · points 15.0/15 - 3 Positive earnings each of 10 years: 8 years reported · threshold 10 of 10 · points None/15 - 4 Dividends every year for 20 years: 10 of 20 · threshold 20 of 20 · points 7.5/15 - 5 EPS growth, 3-yr avg now vs 10 yrs ago: None · threshold >= +33% · points None/10 - 6 P/E on 3-year average EPS: None · threshold <= 15 · points None/15 - 7 P/B <= 1.5, or P/E x P/B <= 22.5: P/B 14.51 · threshold <= 1.5 or <= 22.5 · points 0.0/10 Inputs: - Price (close, per traded unit): 343.67 · 2026-10-23 · Alpaca Market Data (consolidated SIP daily bar) · https://docs.alpaca.markets/docs/historical-stock-data-1 - Revenue: 12919000000.0 · 2026-07-03 · SEC XBRL RevenueFromContractWithCustomerExcludingAssessedTax · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - current_assets: 5634000000.0 · 2026-07-03 · SEC XBRL AssetsCurrent · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - current_liabilities: 4240000000.0 · 2026-07-03 · SEC XBRL LiabilitiesCurrent · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - lt_debt: 0.0 · 2026-07-03 · SEC XBRL LongTermDebtNoncurrent · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - equity: 8864000000.0 · 2026-07-03 · SEC XBRL StockholdersEquity · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - Net income FY2016: 242000000.0 · 2016-07-01 · SEC XBRL NetIncomeLoss · https://www.sec.gov/Archives/edgar/data/106040/000010604018000029/ · unverified - Net income FY2017: 675000000.0 · 2018-06-29 · SEC XBRL NetIncomeLoss · https://www.sec.gov/Archives/edgar/data/106040/000010604020000049/ · unverified - Net income FY2018: -754000000.0 · 2019-06-28 · SEC XBRL NetIncomeLoss · https://www.sec.gov/Archives/edgar/data/106040/000010604021000040/ · unverified - Net income FY2020: -250000000.0 · 2020-07-03 · SEC XBRL NetIncomeLoss · https://www.sec.gov/Archives/edgar/data/106040/000010604022000055/ · unverified - Net income FY2021: 821000000.0 · 2021-07-02 · SEC XBRL NetIncomeLoss · https://www.sec.gov/Archives/edgar/data/106040/000010604023000024/ · unverified - Net income FY2022: 1546000000.0 · 2022-07-01 · SEC XBRL NetIncomeLoss (10-K via companyfacts; frames served proxy 0001628280-26-064909) · https://www.sec.gov/Archives/edgar/data/106040/000010604024000031/ · unverified - Net income FY2023: -798000000.0 · 2024-06-28 · SEC XBRL NetIncomeLoss (10-K via companyfacts; frames served proxy 0001628280-26-064909) · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - Net income FY2024: 1889000000.0 · 2025-06-27 · SEC XBRL NetIncomeLoss (10-K via companyfacts; frames served proxy 0001628280-26-064909) · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - Dividend years (Yahoo): [2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2025, 2026] · · Yahoo Finance dividend history · https://finance.yahoo.com/quote/WDC/history?filter=div · mismatch - Dividends per share FY2013 (XBRL): 1.25 · 2014-06-27 · SEC XBRL CommonStockDividendsPerShareDeclared · https://www.sec.gov/Archives/edgar/data/106040/000010604016000044/ · verified - Dividends per share FY2015 (XBRL): 1.8 · 2015-07-03 · SEC XBRL CommonStockDividendsPerShareDeclared · https://www.sec.gov/Archives/edgar/data/106040/000010604017000027/ · verified - Dividends per share FY2016 (XBRL): 2.0 · 2016-07-01 · SEC XBRL CommonStockDividendsPerShareDeclared · https://www.sec.gov/Archives/edgar/data/106040/000010604018000029/ · verified - Dividends per share FY2017 (XBRL): 2.0 · 2018-06-29 · SEC XBRL CommonStockDividendsPerShareDeclared · https://www.sec.gov/Archives/edgar/data/106040/000010604020000049/ · verified - Dividends per share FY2018 (XBRL): 2.0 · 2019-06-28 · SEC XBRL CommonStockDividendsPerShareDeclared · https://www.sec.gov/Archives/edgar/data/106040/000010604021000040/ · verified - Dividends per share FY2020 (XBRL): 1.5 · 2020-07-03 · SEC XBRL CommonStockDividendsPerShareDeclared · https://www.sec.gov/Archives/edgar/data/106040/000010604022000055/ · verified - Dividends per share FY2021 (XBRL): 0.0 · 2021-07-02 · SEC XBRL CommonStockDividendsPerShareDeclared · https://www.sec.gov/Archives/edgar/data/106040/000010604022000055/ · verified - Dividends per share FY2022 (XBRL): 0.0 · 2022-07-01 · SEC XBRL CommonStockDividendsPerShareDeclared · https://www.sec.gov/Archives/edgar/data/106040/000010604022000055/ · verified - Dividends per share FY2024 (XBRL): 0.1 · 2025-06-27 · SEC XBRL CommonStockDividendsPerShareDeclared · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · mismatch - EPS diluted FY2015: 6.18 · 2015-07-03 · SEC XBRL EarningsPerShareDiluted · https://www.sec.gov/Archives/edgar/data/106040/000010604017000027/ · unverified - EPS diluted FY2016: 1.0 · 2016-07-01 · SEC XBRL EarningsPerShareDiluted · https://www.sec.gov/Archives/edgar/data/106040/000010604018000029/ · unverified - EPS diluted FY2023: -2.61 · 2024-06-28 · SEC XBRL EarningsPerShareDiluted · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - EPS diluted FY2024: 5.12 · 2025-06-27 · SEC XBRL EarningsPerShareDiluted · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - Shares outstanding: 374323269.0 · 2026-10-15 · SEC cover page 10-Q 0001628280-26-066933 (374,323,269 shares (single class on cover)); filing document https://www.sec.gov/Archives/edgar/data/106040/000162828026066933/wdc-20261002.htm · https://www.sec.gov/Archives/edgar/data/106040/000162828026066933/R1.htm ### Magic Formula: 80.9 (ok) · complete: True · missing tests: none · current inputs as of 2026-07-03 · stale inputs: none · history None–None · price 2026-10-23 · verification None · computed 2026-10-26 · rules https://theclaudetrader.com/p/magic_formula - Earnings yield (EBIT/EV): 4.45 % · threshold · points / - Return on capital (EBIT/(NWC+PPE)): 147.47 % · threshold · points / - Combined rank: 121 · threshold · points / Inputs: - operating_income: 4453000000.0 · 2026-07-03 · SEC XBRL OperatingIncomeLoss · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ - operating_income_q: 2046000000.0 · 2026-10-02 · SEC XBRL OperatingIncomeLoss (quarter CY2026Q3) · https://www.sec.gov/Archives/edgar/data/106040/000162828026066933/ - operating_income_q: 792000000.0 · 2025-10-03 · SEC XBRL OperatingIncomeLoss (quarter CY2025Q3) · https://www.sec.gov/Archives/edgar/data/106040/000162828026066933/ - current_assets: 5634000000.0 · 2026-07-03 · SEC XBRL AssetsCurrent · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ - current_liabilities: 4240000000.0 · 2026-07-03 · SEC XBRL LiabilitiesCurrent · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ - cash: 1579000000.0 · 2026-07-03 · SEC XBRL CashAndCashEquivalentsAtCarryingValue · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ - ppe_net: 2476000000.0 · 2026-07-03 · SEC XBRL PropertyPlantAndEquipmentNet · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ - debt_incl_current: 1052000000.0 · 2026-07-03 · SEC XBRL LongTermDebt · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ - shares_out: 374323269.0 · 2026-10-15 · SEC cover page 10-Q 0001628280-26-066933 (374,323,269 shares (single class on cover)); filing document https://www.sec.gov/Archives/edgar/data/106040/000162828026066933/wdc-20261002.htm · https://www.sec.gov/Archives/edgar/data/106040/000162828026066933/R1.htm - Price (close): 343.67 · 2026-10-23 · Yahoo Finance / Alpaca Market Data · - note: debt = LongTermDebt (incl. current maturities) · · · ### Momentum: 59.9 (ok) · complete: True · missing tests: none · current inputs as of 2026-10-23 · stale inputs: none · history None–None · price 2026-10-23 · verification None · computed 2026-10-26 · rules https://theclaudetrader.com/p/momentum - 12-1 month return: 277.5 % · threshold · points 49.5/50 - 6 month return: -14.7 % · threshold · points 2.9/20 - Price / 52-week high: 0.461 · threshold · points 6.9/15 - Volatility penalty (60d annualised): 69.2 % · threshold · points 0.6/15 Inputs: - Adjusted close series (14 months): 343.67 · 2026-10-23 · Yahoo Finance / Alpaca Market Data daily history · ### Insider: 0.0 (ok) · complete: True · missing tests: none · current inputs as of 2026-10-23 · stale inputs: none · history None–None · price None · verification None · computed 2026-10-26 · rules https://theclaudetrader.com/p/insider - Open-market buy value / market cap (percentile among buyers): 0.0 bp · threshold · points 0.0/35 - Distinct buyers: 0 · threshold · points 0.0/25 - Buyer seniority: 0.0 · threshold · points 0.0/20 - Recency (half-life 30d): 0.0 · threshold · points 0.0/10 - Sales penalty (excludes 10b5-1 plan sales): 0.26 bp · threshold · points -4.3/0 Inputs: - Form 4 S Gubbi Vidyadhara K 2026-09-04: 825466.65 · 2026-09-04 · SEC Form 4 (insider transactions data set) · https://www.sec.gov/Archives/edgar/data/106040/000126682426000198/ - Form 4 S STREETER STEPHANIE A 2026-09-01: 728000.0 · 2026-09-01 · SEC Form 4 (insider transactions data set) · https://www.sec.gov/Archives/edgar/data/106040/000126682426000191/ - Form 4 S STREETER STEPHANIE A 2026-08-31: 894120.0 · 2026-08-31 · SEC Form 4 (insider transactions data set) · https://www.sec.gov/Archives/edgar/data/106040/000126682426000191/ - Form 4 S STREETER STEPHANIE A 2026-08-31: 897160.0 · 2026-08-31 · SEC Form 4 (insider transactions data set) · https://www.sec.gov/Archives/edgar/data/106040/000126682426000191/ - excluded 2026-10-21 S: 10b5-1 plan · · rule · - excluded 2026-09-04 S: 10b5-1 plan · · rule · - excluded 2026-08-27 S: 10b5-1 plan · · rule · - excluded 2026-08-26 S: 10b5-1 plan · · rule · - excluded 2026-08-24 S: 10b5-1 plan · · rule · - excluded 2026-08-21 S: 10b5-1 plan · · rule · - excluded 2026-08-11 S: 10b5-1 plan · · rule · - excluded 2026-08-11 S: 10b5-1 plan · · rule · - excluded 2026-08-11 S: 10b5-1 plan · · rule · - excluded 2026-08-11 S: 10b5-1 plan · · rule · - excluded 2026-08-11 S: 10b5-1 plan · · rule · - excluded 2026-08-11 S: 10b5-1 plan · · rule · - excluded 2026-08-11 S: 10b5-1 plan · · rule · - excluded 2026-07-28 S: 10b5-1 plan · · rule · - excluded 2026-07-28 S: 10b5-1 plan · · rule · - excluded 2026-07-28 S: 10b5-1 plan · · rule · - excluded 2026-07-28 S: 10b5-1 plan · · rule · - excluded 2026-07-28 S: 10b5-1 plan · · rule · - excluded 2026-07-28 S: 10b5-1 plan · · rule · - excluded 2026-07-28 S: 10b5-1 plan · · rule · - excluded 2026-07-28 S: 10b5-1 plan · · rule · - excluded 2026-07-28 S: 10b5-1 plan · · rule · - excluded 2026-07-28 S: 10b5-1 plan · · rule · - excluded 2026-07-28 S: 10b5-1 plan · · rule · - excluded 2026-07-28 S: 10b5-1 plan · · rule · - excluded 2026-07-28 S: 10b5-1 plan · · rule · - excluded 2026-07-28 S: 10b5-1 plan · · rule · - excluded 2026-07-28 S: 10b5-1 plan · · rule · - excluded 2026-07-28 S: 10b5-1 plan · · rule · - excluded 2026-07-28 S: 10b5-1 plan · · rule · ### Buffett Quality: 56.3 (ok) · complete: True · missing tests: none · current inputs as of 2026-07-03 · stale inputs: none · history 2018–2026 · price 2026-10-23 · verification {'verified': 0, 'mismatch': 0, 'unverified': 41, 'not_cross_checked': 2} · computed 2026-10-26 · rules https://theclaudetrader.com/p/buffett - 1 Average return on equity (net income / year-end equity): 18.8% over 8 yrs · threshold >= 15% · points 25.0/25 - 2 Profitable every year: 5 of 8 · threshold all years · points 9.4/15 - 3 Net income growth, 3-yr average now vs start of window: base or latest average not positive · threshold >= +10% · points 0.0/10 - 4 Borrowings / 3-yr average earnings (years to repay): 0.3 years · threshold <= 4 · points 15.0/15 - 5 Operating margin, 5-yr average: 16.3% · threshold >= 20% · points 6.9/10 - 6 Free cash flow / net income, 5-yr (operating cash flow minus capex): 0.40 · threshold >= 1.0 · points 0.0/10 - 7 Owner-earnings yield (3-yr avg free cash flow / market cap): 1.0% · threshold >= 7% · points 0.0/15 Inputs: - Price (close, per traded unit): 343.67 · 2026-10-23 · Alpaca Market Data (consolidated SIP daily bar) · https://docs.alpaca.markets/docs/historical-stock-data-1 - Net income FY2017: 675000000.0 · 2018-06-29 · SEC XBRL NetIncomeLoss · https://www.sec.gov/Archives/edgar/data/106040/000010604020000049/ · unverified - Equity at FY2017 end: 11531000000.0 · 2018-06-29 · SEC XBRL StockholdersEquity · https://www.sec.gov/Archives/edgar/data/106040/000010604021000040/ · unverified - Net income FY2018: -754000000.0 · 2019-06-28 · SEC XBRL NetIncomeLoss · https://www.sec.gov/Archives/edgar/data/106040/000010604021000040/ · unverified - Equity at FY2018 end: 9967000000.0 · 2019-06-28 · SEC XBRL StockholdersEquity · https://www.sec.gov/Archives/edgar/data/106040/000010604022000055/ · unverified - Net income FY2020: -250000000.0 · 2020-07-03 · SEC XBRL NetIncomeLoss · https://www.sec.gov/Archives/edgar/data/106040/000010604022000055/ · unverified - Equity at FY2020 end: 9551000000.0 · 2020-07-03 · SEC XBRL StockholdersEquity · https://www.sec.gov/Archives/edgar/data/106040/000010604023000024/ · unverified - Net income FY2021: 821000000.0 · 2021-07-02 · SEC XBRL NetIncomeLoss · https://www.sec.gov/Archives/edgar/data/106040/000010604023000024/ · unverified - Equity at FY2021 end: 10800000000.0 · 2021-07-02 · SEC XBRL StockholdersEquity · https://www.sec.gov/Archives/edgar/data/106040/000010604024000031/ · unverified - Net income FY2022: 1546000000.0 · 2022-07-01 · SEC XBRL NetIncomeLoss (10-K via companyfacts; frames served proxy 0001628280-26-064909) · https://www.sec.gov/Archives/edgar/data/106040/000010604024000031/ · unverified - Equity at FY2022 end: 12323000000.0 · 2022-07-01 · SEC XBRL StockholdersEquity · https://www.sec.gov/Archives/edgar/data/106040/000010604025000038/ · unverified - Net income FY2023: -798000000.0 · 2024-06-28 · SEC XBRL NetIncomeLoss (10-K via companyfacts; frames served proxy 0001628280-26-064909) · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - Equity at FY2023 end: 10818000000.0 · 2024-06-28 · SEC XBRL StockholdersEquity · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - Net income FY2024: 1889000000.0 · 2025-06-27 · SEC XBRL NetIncomeLoss (10-K via companyfacts; frames served proxy 0001628280-26-064909) · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - Equity at FY2024 end: 5311000000.0 · 2025-06-27 · SEC XBRL StockholdersEquity · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - Net income FY2026: 9424000000.0 · 2026-07-03 · SEC XBRL NetIncomeLoss (10-K via companyfacts; frames served proxy 0001628280-26-064909) · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - Equity at FY2026 end: 8864000000.0 · 2026-07-03 · SEC XBRL StockholdersEquity · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - Net income FY2017: 675000000.0 · 2018-06-29 · SEC XBRL NetIncomeLoss · https://www.sec.gov/Archives/edgar/data/106040/000010604020000049/ · unverified - Net income FY2018: -754000000.0 · 2019-06-28 · SEC XBRL NetIncomeLoss · https://www.sec.gov/Archives/edgar/data/106040/000010604021000040/ · unverified - Net income FY2020: -250000000.0 · 2020-07-03 · SEC XBRL NetIncomeLoss · https://www.sec.gov/Archives/edgar/data/106040/000010604022000055/ · unverified - Net income FY2021: 821000000.0 · 2021-07-02 · SEC XBRL NetIncomeLoss · https://www.sec.gov/Archives/edgar/data/106040/000010604023000024/ · unverified - Net income FY2022: 1546000000.0 · 2022-07-01 · SEC XBRL NetIncomeLoss (10-K via companyfacts; frames served proxy 0001628280-26-064909) · https://www.sec.gov/Archives/edgar/data/106040/000010604024000031/ · unverified - Net income FY2023: -798000000.0 · 2024-06-28 · SEC XBRL NetIncomeLoss (10-K via companyfacts; frames served proxy 0001628280-26-064909) · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - Net income FY2024: 1889000000.0 · 2025-06-27 · SEC XBRL NetIncomeLoss (10-K via companyfacts; frames served proxy 0001628280-26-064909) · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - Net income FY2026: 9424000000.0 · 2026-07-03 · SEC XBRL NetIncomeLoss (10-K via companyfacts; frames served proxy 0001628280-26-064909) · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - debt_incl_current: 1052000000.0 · 2026-07-03 · SEC XBRL LongTermDebt · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - Operating income FY2022: 2391000000.0 · 2022-07-01 · SEC XBRL OperatingIncomeLoss · https://www.sec.gov/Archives/edgar/data/106040/000010604024000031/ · unverified - Revenue FY2022: 18793000000.0 · 2022-07-01 · SEC XBRL RevenueFromContractWithCustomerExcludingAssessedTax · https://www.sec.gov/Archives/edgar/data/106040/000010604024000031/ · unverified - Operating income FY2023: -403000000.0 · 2024-06-28 · SEC XBRL OperatingIncomeLoss · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - Revenue FY2023: 6317000000.0 · 2024-06-28 · SEC XBRL RevenueFromContractWithCustomerExcludingAssessedTax · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - Operating income FY2024: 2334000000.0 · 2025-06-27 · SEC XBRL OperatingIncomeLoss · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - Revenue FY2024: 9520000000.0 · 2025-06-27 · SEC XBRL RevenueFromContractWithCustomerExcludingAssessedTax · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - Operating income FY2026: 4453000000.0 · 2026-07-03 · SEC XBRL OperatingIncomeLoss · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - Revenue FY2026: 12919000000.0 · 2026-07-03 · SEC XBRL RevenueFromContractWithCustomerExcludingAssessedTax · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - Operating cash flow FY2022: 1880000000.0 · 2022-07-01 · SEC XBRL NetCashProvidedByUsedInOperatingActivities · https://www.sec.gov/Archives/edgar/data/106040/000010604024000031/ · unverified - Capital expenditure FY2022: 1122000000.0 · 2022-07-01 · SEC XBRL PaymentsToAcquirePropertyPlantAndEquipment · https://www.sec.gov/Archives/edgar/data/106040/000010604024000031/ · unverified - Operating cash flow FY2023: -294000000.0 · 2024-06-28 · SEC XBRL NetCashProvidedByUsedInOperatingActivities · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - Capital expenditure FY2023: 487000000.0 · 2024-06-28 · SEC XBRL PaymentsToAcquirePropertyPlantAndEquipment · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - Operating cash flow FY2024: 1691000000.0 · 2025-06-27 · SEC XBRL NetCashProvidedByUsedInOperatingActivities · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - Capital expenditure FY2024: 412000000.0 · 2025-06-27 · SEC XBRL PaymentsToAcquirePropertyPlantAndEquipment · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified ### Lynch GARP: 65.8 (partial: 5) · complete: False · missing tests: 5 · current inputs as of 2026-07-03 · stale inputs: none · history 2021–2026 · price 2026-10-23 · verification {'verified': 0, 'mismatch': 0, 'unverified': 5, 'not_cross_checked': 1} · computed 2026-10-26 · rules https://theclaudetrader.com/p/lynch - 1 PEG: P/E divided by 5-yr EPS growth (in % points): 0.25 · threshold <= 1.0 · points 30.0/30 - 2 EPS growth, 5-yr compound rate: +55.6% a year · threshold 12% to 35% a year · points 3.5/20 - 3 P/E on latest annual EPS: 14.2 · threshold <= 25 · points 10.0/10 - 4 Borrowings / equity: 0.12 · threshold <= 0.5 · points 15.0/15 - 5 Years of the last 5 in which EPS rose: None · threshold 5 of 5 · points None/15 - 6 Net cash (cash minus borrowings) / market cap: +0.4% · threshold >= +10% · points 7.3/10 Inputs: - Price (close, per traded unit): 343.67 · 2026-10-23 · Alpaca Market Data (consolidated SIP daily bar) · https://docs.alpaca.markets/docs/historical-stock-data-1 - EPS diluted FY2026: 24.28 · 2026-07-03 · SEC XBRL EarningsPerShareDiluted · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - EPS diluted FY2021: 2.66 · 2021-07-02 · SEC XBRL EarningsPerShareDiluted · https://www.sec.gov/Archives/edgar/data/106040/000010604023000024/ · unverified - debt_incl_current: 1052000000.0 · 2026-07-03 · SEC XBRL LongTermDebt · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - equity: 8864000000.0 · 2026-07-03 · SEC XBRL StockholdersEquity · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - cash: 1579000000.0 · 2026-07-03 · SEC XBRL CashAndCashEquivalentsAtCarryingValue · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified ### Graham Enterprising: 44.9 (partial: 3) · complete: False · missing tests: 3 · current inputs as of 2026-07-03 · stale inputs: none · history 2021–2026 · price 2026-10-23 · verification {'verified': 0, 'mismatch': 0, 'unverified': 7, 'not_cross_checked': 3} · computed 2026-10-26 · rules https://theclaudetrader.com/p/graham_enterprising - 1 Current ratio: 1.33 · threshold >= 1.5 · points 9.9/15 - 2 Borrowings vs working capital: 0.75 x · threshold <= 1.1x · points 15.0/15 - 3 No earnings deficit in the last 5 years: 4 years reported · threshold 5 of 5 · points None/15 - 4 Pays a current dividend: yes · threshold yes · points 10.0/10 - 5 EPS higher than five years earlier: 2.66 -> 24.28 · threshold higher · points 10.0/10 - 6 Price / book value per share: 14.51 · threshold <= 1.2 · points 0.0/20 - 7 Price / net current asset value per share (current assets minus all liabilities): 201.95 · threshold <= 0.67 · points 0.0/15 Inputs: - Price (close, per traded unit): 343.67 · 2026-10-23 · Alpaca Market Data (consolidated SIP daily bar) · https://docs.alpaca.markets/docs/historical-stock-data-1 - current_assets: 5634000000.0 · 2026-07-03 · SEC XBRL AssetsCurrent · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - current_liabilities: 4240000000.0 · 2026-07-03 · SEC XBRL LiabilitiesCurrent · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - debt_incl_current: 1052000000.0 · 2026-07-03 · SEC XBRL LongTermDebt · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - Dividend years (Yahoo): [2015, 2016, 2017, 2018, 2019, 2020, 2025, 2026] · · Yahoo Finance dividend history · https://finance.yahoo.com/quote/WDC/history?filter=div - EPS diluted FY2026: 24.28 · 2026-07-03 · SEC XBRL EarningsPerShareDiluted · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - EPS diluted FY2021: 2.66 · 2021-07-02 · SEC XBRL EarningsPerShareDiluted · https://www.sec.gov/Archives/edgar/data/106040/000010604023000024/ · unverified - equity: 8864000000.0 · 2026-07-03 · SEC XBRL StockholdersEquity · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified - Shares outstanding: 374323269.0 · 2026-10-15 · SEC cover page 10-Q 0001628280-26-066933 (374,323,269 shares (single class on cover)); filing document https://www.sec.gov/Archives/edgar/data/106040/000162828026066933/wdc-20261002.htm · https://www.sec.gov/Archives/edgar/data/106040/000162828026066933/R1.htm - liabilities: 4997000000.0 · 2026-07-03 · SEC XBRL Liabilities · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ · unverified ### Piotroski F-Score: — (insufficient data (net income for FY2025 not reported)) · complete: None · missing tests: none · current inputs as of None · stale inputs: none · history None–None · price None · verification None · computed 2026-10-26 · rules https://theclaudetrader.com/p/piotroski ## Market value, source trail - Formula: market_value = traded_price (price date) / depositary_ratio x latest point-in-time SEC shares outstanding (share-count date shown; from the filing cover page, summed across share classes only where the issuer filing verifies the classes are economically equivalent (rule + evidence URL in the source text), else withheld; priced at the primary listed class, so where other classes trade at a different price the value is an approximation; restated only for issuer-verified splits after the count date); weighted-average share counts are never used - Traded price: 343.67 on 2026-10-23 (USD per traded unit (share or ADS)) · https://docs.alpaca.markets/docs/historical-stock-data-1 - SEC shares outstanding: 374,323,269 underlying shares, period 2026-10-15, SEC cover page 10-Q 0001628280-26-066933 (374,323,269 shares (single class on cover)); filing document https://www.sec.gov/Archives/edgar/data/106040/000162828026066933/wdc-20261002.htm, accession 0001628280-26-066933 · https://www.sec.gov/Archives/edgar/data/106040/000162828026066933/R1.htm - Depositary ratio: 1.0 (domestic; 10-K filer; SEC shares are the traded units) · None - Market value (price date x latest reported shares): 128,643,677,857 USD; 343.67 (price 2026-10-23) / 1 x 374,323,269 (shares at 2026-10-15) = 128,643,677,857 ## Revenue by fiscal year (SEC XBRL; FY = calendar year in which the fiscal year ends) - FY2018 (ended 2018-06-29): 20647000000.0 · https://www.sec.gov/Archives/edgar/data/106040/000010604020000049/ - FY2019 (ended 2019-06-28): 16569000000.0 · https://www.sec.gov/Archives/edgar/data/106040/000010604021000040/ - FY2020 (ended 2020-07-03): 16736000000.0 · https://www.sec.gov/Archives/edgar/data/106040/000010604022000055/ - FY2021 (ended 2021-07-02): 16922000000.0 · https://www.sec.gov/Archives/edgar/data/106040/000010604023000024/ - FY2022 (ended 2022-07-01): 18793000000.0 · https://www.sec.gov/Archives/edgar/data/106040/000010604024000031/ - FY2024 (ended 2024-06-28): 6317000000.0 · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ - FY2025 (ended 2025-06-27): 9520000000.0 · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ - FY2026 (ended 2026-07-03): 12919000000.0 · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ ## Net income by fiscal year (SEC XBRL) - FY2014 (ended 2014-06-27): 1617000000.0 · https://www.sec.gov/Archives/edgar/data/106040/000010604016000044/ - FY2015 (ended 2015-07-03): 1465000000.0 · https://www.sec.gov/Archives/edgar/data/106040/000010604017000027/ - FY2016 (ended 2016-07-01): 242000000.0 · https://www.sec.gov/Archives/edgar/data/106040/000010604018000029/ - FY2018 (ended 2018-06-29): 675000000.0 · https://www.sec.gov/Archives/edgar/data/106040/000010604020000049/ - FY2019 (ended 2019-06-28): -754000000.0 · https://www.sec.gov/Archives/edgar/data/106040/000010604021000040/ - FY2020 (ended 2020-07-03): -250000000.0 · https://www.sec.gov/Archives/edgar/data/106040/000010604022000055/ - FY2021 (ended 2021-07-02): 821000000.0 · https://www.sec.gov/Archives/edgar/data/106040/000010604023000024/ - FY2022 (ended 2022-07-01): 1546000000.0 · https://www.sec.gov/Archives/edgar/data/106040/000010604024000031/ - FY2024 (ended 2024-06-28): -798000000.0 · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ - FY2025 (ended 2025-06-27): 1889000000.0 · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ - FY2026 (ended 2026-07-03): 9424000000.0 · https://www.sec.gov/Archives/edgar/data/106040/000162828026057139/ ## EPS diluted by fiscal year (split-adjusted to today's share basis; as filed in brackets) - FY2014 (ended 2014-06-27): 6.68 [filed 6.68, split factor 1.0] - FY2015 (ended 2015-07-03): 6.18 [filed 6.18, split factor 1.0] - FY2016 (ended 2016-07-01): 1.0 [filed 1.0, split factor 1.0] - FY2018 (ended 2018-06-29): 2.2 [filed 2.2, split factor 1.0] - FY2019 (ended 2019-06-28): -2.58 [filed -2.58, split factor 1.0] - FY2020 (ended 2020-07-03): -0.84 [filed -0.84, split factor 1.0] - FY2021 (ended 2021-07-02): 2.66 [filed 2.66, split factor 1.0] - FY2022 (ended 2022-07-01): 4.89 [filed 4.89, split factor 1.0] - FY2024 (ended 2024-06-28): -2.61 [filed -2.61, split factor 1.0] - FY2025 (ended 2025-06-27): 5.12 [filed 5.12, split factor 1.0] - FY2026 (ended 2026-07-03): 24.28 [filed 24.28, split factor 1.0] ## Dividend years (Yahoo history) 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2025, 2026 ## Insider transactions (SEC Form 4 data set, latest 40) - 2026-10-21 S Tregillis Cynthia L (officer) 807 @ 380.00 = 306660 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000217/#live - 2026-09-04 S Gubbi Vidyadhara K (officer) 1795 @ 459.87 = 825467 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000198/ - 2026-09-04 S Tregillis Cynthia L (officer) 432 @ 451.20 = 194918 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000199/ - 2026-09-01 S STREETER STEPHANIE A (director) 1600 @ 455.00 = 728000 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000191/ - 2026-08-31 S STREETER STEPHANIE A (director) 2000 @ 447.06 = 894120 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000191/ - 2026-08-31 S STREETER STEPHANIE A (director) 2000 @ 448.58 = 897160 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000191/ - 2026-08-27 S Tregillis Cynthia L (officer) 1007 @ 478.36 = 481709 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000188/ - 2026-08-26 S Tregillis Cynthia L (officer) 476 @ 450.78 = 214571 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000188/ - 2026-08-24 S Tregillis Cynthia L (officer) 684 @ 446.17 = 305180 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000174/ - 2026-08-21 S Tregillis Cynthia L (officer) 235 @ 477.27 = 112158 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000174/ - 2026-08-11 S Tan Irving (CEO) 2478 @ 441.48 = 1093987 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000166/ - 2026-08-11 S Tan Irving (CEO) 1880 @ 444.67 = 835980 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000166/ - 2026-08-11 S Tan Irving (CEO) 4822 @ 445.45 = 2147960 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000166/ - 2026-08-11 S Tan Irving (CEO) 989 @ 442.22 = 437356 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000166/ - 2026-08-11 S Tan Irving (CEO) 6445 @ 446.38 = 2876919 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000166/ - 2026-08-11 S Tan Irving (CEO) 1546 @ 447.18 = 691340 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000166/ - 2026-08-11 S Tan Irving (CEO) 1840 @ 443.35 = 815764 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000166/ - 2026-07-28 S Cole Martin I (director) 64 @ 434.81 = 27828 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000163/ - 2026-07-28 S Cole Martin I (director) 112 @ 433.84 = 48590 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000163/ - 2026-07-28 S Cole Martin I (director) 115 @ 431.41 = 49612 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000163/ - 2026-07-28 S Cole Martin I (director) 103 @ 430.45 = 44336 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000163/ - 2026-07-28 S Cole Martin I (director) 93 @ 429.12 = 39908 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000163/ - 2026-07-28 S Cole Martin I (director) 115 @ 428.08 = 49229 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000163/ - 2026-07-28 S Cole Martin I (director) 64 @ 426.45 = 27293 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000163/ - 2026-07-28 S Cole Martin I (director) 32 @ 425.31 = 13610 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000163/ - 2026-07-28 S Cole Martin I (director) 64 @ 424.05 = 27139 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000163/ - 2026-07-28 S Cole Martin I (director) 32 @ 435.59 = 13939 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000163/ - 2026-07-28 S Cole Martin I (director) 154 @ 436.89 = 67281 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000163/ - 2026-07-28 S Cole Martin I (director) 118 @ 438.08 = 51693 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000163/ - 2026-07-28 S Cole Martin I (director) 64 @ 439.38 = 28120 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000163/ - 2026-07-28 S Cole Martin I (director) 96 @ 440.96 = 42332 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000163/ - 2026-07-28 S Cole Martin I (director) 32 @ 442.47 = 14159 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000163/ - 2026-07-28 S Cole Martin I (director) 32 @ 444.51 = 14224 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000163/ - 2026-07-28 S Cole Martin I (director) 32 @ 447.10 = 14307 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000163/ - 2026-07-28 S Cole Martin I (director) 41 @ 448.46 = 18387 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000163/ - 2026-07-28 S Cole Martin I (director) 39 @ 449.42 = 17527 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000163/ - 2026-07-28 S Cole Martin I (director) 70 @ 451.30 = 31591 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000163/ - 2026-07-28 S Cole Martin I (director) 106 @ 452.12 = 47925 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000163/ - 2026-07-28 S Cole Martin I (director) 144 @ 453.27 = 65271 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000163/ - 2026-07-28 S Cole Martin I (director) 128 @ 454.44 = 58168 · https://www.sec.gov/Archives/edgar/data/106040/000126682426000163/ ## Links - sec_filings: https://www.sec.gov/edgar/browse/?CIK=0000106040 - sec_xbrl_companyfacts: https://data.sec.gov/api/xbrl/companyfacts/CIK0000106040.json - sec_form4: https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000106040&type=4 - sec_8k: https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000106040&type=8-K - yahoo: https://finance.yahoo.com/quote/WDC - stooq: https://stooq.com/q/d/?s=wdc.us - morningstar (link only, nothing stored): https://www.morningstar.com/search?query=WDC - finviz (link only, nothing stored): https://finviz.com/quote.ashx?t=WDC - stockanalysis (link only, nothing stored): https://stockanalysis.com/stocks/wdc/ - seeking_alpha (link only, nothing stored): https://seekingalpha.com/symbol/WDC - openinsider (link only, nothing stored): http://openinsider.com/search?q=WDC - google_news (link only, nothing stored): https://news.google.com/rss/search?q=WDC+stock Cite as: The Claude Trader snapshot 2026-10-26, https://theclaudetrader.com/s/WDC; data from SEC EDGAR XBRL and market prices (Alpaca Market Data, Yahoo Finance) to 2026-10-23. Scores are deterministic rule outputs from public filings. fair_value_model is a labelled model estimate from the same filings (method at /fair-value), not an opinion or recommendation.