US memory stocks rebound: Micron, SanDisk, Seagate and Western Digital jump 6% to 10%
Micron rose 6.25% to $733.15 and SanDisk 6.16% to $886.51 on Monday as memory stocks rode a broad chip rally — but the group is still well below its recent highs, and SanDisk's prices are still pre-split.
The News
America's memory and storage stocks bounced hard on Monday, November 9. Micron, the US memory-chip maker, closed at $733.15, up $43.15, or 6.25%. SanDisk, the flash-storage company, closed at $886.51, up $51.45, or 6.16%. Seagate closed at $506.14, up $45.15, or 9.79%, and Western Digital closed at $289.78, up $26.00, or 9.86%.
The move was part of a broad chip rally, not company news. The PHLX Semiconductor Index rose 6.85% and the Nasdaq — the tech-heavy US stock index — gained 2.74%, as investors bought back into AI hardware after last week's midterm-driven sell-off. No company-specific announcement was tied to Monday's move for any of the four stocks in the reporting checked — the money was rotating back into the sector as a whole, with Nvidia the only large chip stock in the PHLX Semiconductor Index to fall on the day.
The bounce still leaves the group well below its recent highs. Micron is still down about 12.05% over the last five sessions, and SanDisk about 17.54% — measured from their November 2 closes of $833.59 and $1,075.08. Micron's $733.15 close sits below its November 3 close of $855.10 — so even after a 6.25% day, Micron is still $121.95 below where it stood six days earlier. The damage from last week's rout is only partly repaired.
One number needs a warning label. SanDisk's $886.51 price is pre-split. Its 8-for-1 stock split — one old share becomes eight new ones — has a record date of November 9, but the extra shares only go out after the close on November 19, and split-adjusted trading starts November 20. So the price you see today is the old, pre-split price. After the split, SanDisk will trade at roughly one-eighth of today's price, and that is not a crash — it is the same company cut into more pieces.
Memory stocks jumped 6% to 10% in a single day — the sector is bouncing back, and it is still well below its highs.
Why It Matters
Memory is the bottleneck of the AI boom. Every AI server needs huge amounts of high-bandwidth memory and flash storage, and demand has been strong — which is why these stocks ran so hard earlier in the year. Last week's sell-off was triggered by the midterm results and worries about data-centre regulation, on top of anxieties about AI spending that had been building all year. Monday's rebound says investors used the dip to buy back in, but it does not by itself prove the demand story is unchanged.
The scale of the move matters too. Seagate and Western Digital both gained nearly 10% in a single day — the kind of move that usually takes weeks. When four stocks in the same corner of the market all jump 6% to 10% together, it is a sector call, not four separate stories. The market is saying the memory trade is alive again.
The split warning is worth repeating because it will confuse readers in ten days' time. When split-adjusted trading starts on November 20, SanDisk's price will drop to roughly one-eighth of its pre-split level overnight. That is arithmetic, not a sell-off — the number of shares goes up eightfold at the same time, so each shareholder owns the same value. Anyone watching the price alone will see a cliff that is not really there.
Analyst's Take
Our call is Mixed. The rebound was broad and big, and it came with no bad company news to explain it away — but it is a single day after a rout, the group is still 12-18% below its November 2 closes, and the regulatory outlook that drove last week's sell-off is unresolved. Monday's move could be the start of the repair, or a one-day bounce; the gains need to hold through the week before the call turns bullish.
What to watch: whether the gains hold through the week, and whether any of the four companies gives fresh news on demand or prices. SanDisk's split on November 20 will make its price look very different overnight — do not mistake the split-adjusted price for a fall. If the chip rally holds, memory should keep leading.
Are you bullish or bearish on this story?
By The Numbers
FAQ
Why did memory stocks jump if there was no company news?
Because the money was rotating back into the whole sector, not reacting to any one company. The PHLX Semiconductor Index rose 6.85% and the Nasdaq gained 2.74% on Monday as investors bought back into AI hardware after last week's sell-off, which followed the midterm elections. No company-specific announcement was tied to Monday's move for any of the four stocks in the reporting checked.
What is SanDisk's stock split, and why does its price look so high?
SanDisk is doing an 8-for-1 stock split: one old share becomes eight new ones. The record date was November 9, the extra shares go out after the close on November 19, and split-adjusted trading starts November 20. Today's $886.51 price is pre-split — after the split it will be roughly one-eighth of that, and that is not a crash, it is the same company cut into more pieces.
How far below their highs are Micron and SanDisk?
Micron is still down about 12.05% over the last five sessions, and SanDisk about 17.54%, measured from their November 2 closes. Micron's $733.15 close sits below its November 3 close of $855.10. Monday's bounce is a repair, not a full recovery.
What is the PHLX Semiconductor Index?
It is an index — a basket — of the biggest US semiconductor stocks, tracked as a single number. When it rises 6.85% in a day, it means chip stocks as a group had a very strong day.
What is a stock split?
A stock split increases the number of shares a company has, and cuts the price of each share by the same proportion, so the total value of the company does not change. An 8-for-1 split turns one $886.51 share into eight shares worth about $110.81 each.
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Source: AIStockWire