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Western Digital CORP

WDC

15 stories

$117B Market cap · 2026-11-11

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@StableBread

Fajasy on X

On October 2, 2026, Seagate $STX and Western Digital $WDC each fell 10.2%, while Quantum $QMCO rose 8.2% to its $34.50 peak. $QMCO’s drop started the week before it fired its CFO on October 9, along with a selloff in hard drive stocks. Toshiba, which makes hard drives like $STX and $WDC, said on October 2 that its Philippine plant is “aiming to nearly double its annual production capacity” of data center hard drives by its fiscal year starting April 2027. More hard drive supply could (1) hurt $QMCO by easing the disk shortage that helped push customers toward tape, as I covered in my April 22 tape primer, and (2) help $QMCO by easing the constraints on “certain disk drives” that CEO Hugues Meyrath mentioned on the June-quarter call. From October 2 to October 9, $QMCO fell 11.8%, vs. 4.3-8.0% for SanDisk $SNDK, $STX, and $WDC. Then, from the October 9 close, before the firing was disclosed, to October 27, $QMCO fell another 33.4%, vs. 4.1-17.5% for the three storage stocks. So the storage selloff explains part of the drop from $34.50, but most of it came after the firing, which is specific to $QMCO.
@StableBread

Fajasy on X

A tape library maker fired its CFO on October 9, 2026, without giving a reason, and its stock is now down 41.3% from its October 2 peak. Within two months, it replaced both of its top finance officers. Yet it still expects to meet or exceed its September-quarter guidance. That company is Quantum $QMCO, which makes tape libraries that companies use to archive data for years. $QMCO has fallen to $20.25/share, down 22.4% since my August update, but still more than double the $9.42 investors paid in its June private placement (PIPE). Worth mentioning that the larger hard drive and flash memory stocks have fallen from their 2026 highs as well, through the October 27 close: → SanDisk $SNDK: Down 44.1% to $1,304.84/share. → Seagate $STX: Down 39.0% to $667.85/share. → Western Digital $WDC: Down 49.0% to $380.88/share. So $QMCO fell about as far as the group, but in under four weeks instead of four months, and mostly after the CFO was fired. Besides the firing, three accounting issues hang over $QMCO’s September-quarter 10-Q, due November 9: 1) Material weaknesses: $QMCO’s June-quarter 10-Q still reports material weaknesses (the most serious kind of gap in a company’s financial reporting controls) in revenue recognition, inventory, and income taxes. 2) Restatements: None of the weaknesses has led to a material misstatement, but $QMCO has restated its financial statements before, in May 2024 and again in August 2025. 3) Late filings: Its June-quarter 10-Q was officially filed on August 11, a day after its 40-day deadline, and its FY2026 10-K needed a notice of late filing in June. Still, tape demand is growing, and no $QMCO insider has sold since my August update: → Tape: Secondary storage, which $QMCO’s 10-K describes as “primarily tape storage systems,” doubled from a year earlier to $37.0M in the June quarter, 46% of total revenue, up from 29%. → Industry: The LTO Program, the group of $HPE, $IBM, and $QMCO that sets the LTO tape standard, reported on September 1, 2026 that tape capacity shipped in Q1 2026 rose 57% from Q1 2025. → Supply: By CEO Hugues Meyrath’s account, $IBM’s drive supply, not demand, limits how much $QMCO can sell for now. → Insiders: No $QMCO insider has bought or sold shares in the open market since my August update, including Dialectic, the activist fund managed by director John Fichthorn. $QMCO’s EV is $825.3M, counting its warrants, options, and RSUs. That’s 2.8x TTM revenue, down from 4.9x at the October 2 peak, but still 34.4x the September quarter’s $6M ±$1M of adjusted EBITDA guidance, annualized. So is $QMCO’s drop a pullback worth buying, or a warning about the numbers? That’s what I answer in my new update on $QMCO, including my bear, base, and bull cases.
@ParadisLabs 1 click

Paradis on X

For AI/Semis stocks, it feels like every earnings season becomes signficantly more important than the last. This time is the same, but for different reasons which has led to market chopiness: - Macro instability (Iran, oil, yields, inflation) - Midterms - $CRWV credit stress - AI ROI concerns via frontier lab ARR's (& pending hyperscaler earnings on top). Today: $SPCX Wed: $META, $TXN, $LRCX Thu: $BE, $WDC, $NOK Let's see if good EPS will be enough to turnaround sentiment.
WDC · long

Western Digital CORP

Western Digital, a hard-disk manufacturer, is pitched as a long after significant share-price moves deter investors.

WDC $117B
Value Investors Club 7 clicks
@ActAccordingly 2 clicks

PAA Research on X

If you're wondering just how unusual this year has been, here's yet another way to look at it. TWENTY THREE S&P 500 stocks have increased 100%+ this year. That's by far the highest number for at least the past FORTY years (maybe all-time). The stocks that have doubled have contributed roughly 5-6% of the overall 8% gain YTD for the S&P 500. It is highly unusual for an S&P 500 stock to double. In most years, there are at most a few stocks that double. Of course the last time we saw a surge in the number of S&P 500 stocks that doubled was in 1999..... History suggests this type of unrelenting bid will not be sustained. As you look at the list below, you'll notice the only non-AI/semis/data center stock in the S&P 500 that has doubled is $MRNA, which was down (-90%+) from its COVID19 highs. If you're looking for doubles or 10-baggers going forward, perhaps it's time to look outside of the data center trade... $SNDK $WDC $STX $MU $INTC $DELL $MRVL $FLEX $AMD $AMAT $LITE $GLW $LRCX $TER $ON $COHR $MRNA $FIX $HPE $GNRC $KLAC $Q

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