Episode Details

Western Digital Corporation (WDC) Q4 FY2026 — Revenue $3,747M UP 44% and non-GAAP EPS $3.56 beat a $3.29 bar. Non-GAAP gross margin 54.4%, up 1,310bp. Guidance came in ABOVE consensus. And the stock closed down 5.36% at $519.17 pre-print, then fell 11.12% after hours to $461.42. WD beat on both lines, guided ABOVE consensus and printed a 54.4% non-GAAP gross margin - and the shares still fell about 16%. Here is why: at $519.17 the market pays ~$201B for a company that produced $3.5B of free cash flow in its best year ever. That is 57x free cash flow and ~32x the earnings management itself just guided to, for a hard-drive maker whose gross margin was 41% twelve months ago. THE CALL: AVOID (4/5, A SUPERB BUSINESS AT A PRICE THAT NEEDS A DECADE OF PERFECTION) — base-case value ~$155.0 vs ~$519.17 today. KEY METRICS: - CALL: AVOID 4/5, fair value ~$155 vs the $519.17 close (-70%), far below the Street's $641.25 average (+24%). Base $113 (FY27-28 stay at peak, then pricing mean-reverts and free cash flow settles near $3.4B), bear $64 (the drive cycle breaks the way it always has), bull $252 (the oligopoly holds, nobody builds, free cash flow compounds to $8.5B with no down year). Cycle-adjusted cross-check: normalised earnings power ~$9.84 a share at 15x = $148. Today's price sits at roughly DOUBLE the top of our range. - REVERSE-DCF: WHAT $519.17 REQUIRES. On the 388M diluted shares in management's own Q1FY27 outlook, market value is ~$201.4B and EV ~$200.9B - 15.6x FY2026 revenue and 57x FY2026 free cash flow, a 1.7% FCF yield, and ~32x the ~$16 of annualised earnings WD just guided to. To justify that at a 10.5% discount rate, free cash flow must compound ~28% a year for five straight years to ~$19.2B by fiscal 2031 - roughly $48B of revenue at these margins, against $12.9B today, from a company that spent $418M of capex all year. - THE QUARTER WAS SUPERB - THAT IS NOT THE ARGUMENT. Revenue $3,747M, up 44% y/y and 12% q/q, against a ~$3.69B bar. Non-GAAP EPS $3.56 vs a $3.29 estimate, up 109% from $1.70. Non-GAAP gross margin 54.4% (+1,310bp), operating margin 44.2% (+1,610bp), opex just $382M (~10% of revenue, DOWN 4% q/q). Operating cash flow $1,389M less $108M capex = $1,281M of free cash flow, a 34% margin. Guidance beat too: Q1FY27 revenue $4.0-4.2B vs ~$4.02B, EPS $3.85-4.15 vs ~$3.82, gross margin guided HIGHER to 55-56%. - DO NOT USE THE GAAP NUMBER. GAAP diluted EPS was $8.21 against non-GAAP $3.56, GAAP net income $3,195M against $1,382M. The gap sits in GAAP interest and other income of POSITIVE $1,684M, which holds a $2,050M NON-CASH mark-to-market gain on the retained Sandisk interest less $362M of debt and equity transaction costs - strip both and non-GAAP interest expense is MINUS $10M. GAAP tax was $52M on $3,247M of pre-tax income, a 1.6% rate. Full-year GAAP EPS $24.28 vs $10.22 non-GAAP; the FY Sandisk gain was $6,498M. - UNIT ECONOMICS AND A TRANSFORMED BALANCE SHEET. 231 exabytes shipped, up 22%, ~209 of them nearline, cloud ~90% of revenue. $3,747M over 231 exabytes is $16.22 of revenue per terabyte against $13.76 a year ago, up 17.9% - so roughly 45% of the 44% revenue growth is PRICE, not volume. 40TB ePMR drives ship now, 44TB HAMR in 1H CY2027, 50TB in 2H. Debt fell from $4,711M to $1,052M with ZERO long-term debt; $1,579M of cash makes $527M NET CASH; $2,592M of buybacks and $184M of dividends, funded by the Sandisk stake. What to watch: UP: dollars per terabyte still rising in the December quarter, or gross margin holding above 55% into fiscal 2028. BEAR: revenue per terabyte flat or down, gross margin guidance below 53%, or any of the three suppliers announcing new capacity. Also on YouTube: @ChargedAlpha DISCLAIMER: For informational and educational purposes only. Not financial advice. Do your own research before any investment decision.