Why Sandisk Stock Dropped on Monday

Source The Motley Fool

Key Points

  • CXMT has made "key progress" on "4F square" technology to increase DRAM storage density.

  • SK Hynix and Samsung on working on similar advances.

  • CXMT memory chips aren't necessarily cheaper than Korean or Western alternatives.

  • 10 stocks we like better than Sandisk ›

Sandisk (NASDAQ:SNDK) stock sank 6.6% through 9:55 a.m. ET Monday -- and it's no mystery why.

Three months ago, worries about the durability of artificial intelligence demand combined with the threat of new competition in memory chips from China to cut Sandisk's stock price in half.

Missed Nvidia in 2009? This Rare Signal Is Flashing Again. In 2009, a "Double Down" signal flashed for a little-known chipmaker called Nvidia. For the first time in years, that same "Total Conviction" signal is flashing for a company 1/100th the size of Nvidia. Continue »

An IPO by ChangXin Memory Technologies, or CXMT -- a Chinese maker of DRAM memory chips -- sparked much of this selling. Today, CXMT is back in the news.

SanDisk logo overlaid on a red-tinted background with an external SSD and laptop keyboard

Image source: The Motley Fool.

China news today

As TradingView.com reports, CXMT has made "key progress" on "4F square" technology to increase DRAM storage density and will release a new product targeting the AI data center market later this year.

CXMT isn't the only company exploring this technology. Indeed, both SK Hynix and Samsung have announced similar progress. That's not necessarily good news for U.S. memory producers like Sandisk and Micron, however. It still adds one more company to the list of rivals making DRAM advances, and threatening to eat their market share!

What it means for Sandisk stock

Still, there are two reasons Sandisk investors might not want to panic. First and foremost, because Sandisk doesn't actually make DRAM at all! It's a NAND memory specialist, and so, while competing in the same general industry as CXMT, it's not a direct competitor, blunting the threat.

And second, as Yahoo! Finance reports, the threat from CXMT may not even be as sharp as feared. Most investors first heard of CXMT when Apple asked permission to buy DRAM chips from it back in July. Apple soon abandoned the effort, however, when it learned CXMT was demanding prices even higher than SK and Samsung were charging!

Turns out, CXMT isn't quite as scary as we thought. And Sandisk investors needn't be as nervous as they are.

Should you buy stock in Sandisk right now?

Before you buy stock in Sandisk, consider this:

The Motley Fool Stock Advisor analyst team just identified what they believe are the 10 best stocks for investors to buy now… and Sandisk wasn’t one of them. The 10 stocks that made the cut could produce monster returns in the coming years.

Consider when Netflix made this list on December 17, 2004... if you invested $1,000 at the time of our recommendation, you’d have $379,123!* Or when Nvidia made this list on April 15, 2005... if you invested $1,000 at the time of our recommendation, you’d have $1,408,822!*

Now, it’s worth noting Stock Advisor’s total average return is 950% — a market-crushing outperformance compared to 215% for the S&P 500. Don't miss the latest top 10 list, available with Stock Advisor, and join an investing community built by individual investors for individual investors.

See the 10 stocks »

*Stock Advisor returns as of October 12, 2026.

Rich Smith has no position in any of the stocks mentioned. The Motley Fool has positions in and recommends Apple and Micron Technology. The Motley Fool has a disclosure policy.

Disclaimer: For information purposes only. Past performance is not indicative of future results.
placeholder
Hurricane Isaias has shut in a quarter of Gulf oil output — can WTI clear $92 before Thursday's EIA report?WTI trades at $90.80 after rebounding roughly 3% from Wednesday's $87.96 low as Hurricane Isaias — the Atlantic season's first — forces producers to shut in about 25% of US Gulf of Mexico output. Brent holds at $103.41. The first official read on the disruption arrives with the EIA weekly petroleum report on Thursday 15 October — here are the key levels and both scenarios.
Author  Irene Q.
Oct 09, Fri
WTI trades at $90.80 after rebounding roughly 3% from Wednesday's $87.96 low as Hurricane Isaias — the Atlantic season's first — forces producers to shut in about 25% of US Gulf of Mexico output. Brent holds at $103.41. The first official read on the disruption arrives with the EIA weekly petroleum report on Thursday 15 October — here are the key levels and both scenarios.
placeholder
US September CPI preview: inflation set to hit 3.7% — will the Fed hike in December?US September CPI lands Wednesday with headline inflation seen at 3.7% y/y and core at 0.2% m/m. December hike odds sit near 70% — here are the scenarios, the calendar and the key levels.
Author  Irene Q.
Oct 10, Sat
US September CPI lands Wednesday with headline inflation seen at 3.7% y/y and core at 0.2% m/m. December hike odds sit near 70% — here are the scenarios, the calendar and the key levels.
placeholder
Gold posts first weekly gain in three weeks — can $4,200 hold through CPI?Spot gold closed at $4,194.645, up 1.47% — its first weekly gain in three weeks — and COMEX futures settled back above $4,200 at $4,220.30. Here are the drivers, the levels and the scenarios into Wednesday's CPI.
Author  Irene Q.
Oct 10, Sat
Spot gold closed at $4,194.645, up 1.47% — its first weekly gain in three weeks — and COMEX futures settled back above $4,200 at $4,220.30. Here are the drivers, the levels and the scenarios into Wednesday's CPI.
placeholder
Brent swings $105.63 to $102.33 as Gulf risk meets an 'energy ceasefire' — can $100 hold into CPI?Brent spiked to $105.63 in Asian trade on fresh Middle East supply incidents, then reversed to $102.33 after the US announced a Russia-Ukraine 'energy ceasefire' and 300,000+ tonnes of Russian diesel headed to global markets; WTI fell through $90. Here are the drivers, the levels and the scenarios into Wednesday's US CPI.
Author  Irene Q.
19 hours ago
Brent spiked to $105.63 in Asian trade on fresh Middle East supply incidents, then reversed to $102.33 after the US announced a Russia-Ukraine 'energy ceasefire' and 300,000+ tonnes of Russian diesel headed to global markets; WTI fell through $90. Here are the drivers, the levels and the scenarios into Wednesday's US CPI.
placeholder
Bank earnings kick off tomorrow with the S&P 500 seven points from a record — what JPMorgan, Goldman, Citi and Wells Fargo must proveQ3 earnings season starts Tuesday with JPMorgan, Goldman Sachs, Citigroup and Wells Fargo reporting before the open — with the S&P 500 just 7 points from its record close, bank stocks down 7.5% over the past month, and September CPI landing the next day. Here are the numbers to watch, the two-sided setup and the levels that matter.
Author  Irene Q.
19 hours ago
Q3 earnings season starts Tuesday with JPMorgan, Goldman Sachs, Citigroup and Wells Fargo reporting before the open — with the S&P 500 just 7 points from its record close, bank stocks down 7.5% over the past month, and September CPI landing the next day. Here are the numbers to watch, the two-sided setup and the levels that matter.
goTop
quote