Why Sandisk Stock Finally Popped Today

Source The Motley Fool

Key Points

  • Investor worry over China and AI volatility scared Sandisk investors this week.

  • Today, they remembered that so long as AI hyperscalers are spending, Sandisk will do fine.

  • 10 stocks we like better than Sandisk ›

Is Sandisk (NASDAQ: SNDK) stock just a momentum stock now?

It really feels like it lately. After falling nearly 37% over the past four trading days, shares of the NAND semiconductor memory stock exploded this morning, surging 21.5% through 10 a.m. ET.

Where to invest $1,000 right now? Our analyst team just revealed what they believe are the 10 best stocks to buy right now, when you join Stock Advisor. See the stocks »

Competing "narratives" about what's going on in artificial intelligence may be the reason.

One green arrow sticks out of a list of stock prices that are all red.

Image source: Getty Images.

Several theories on what's happening with AI

HSBC analyst Alastair Pinder explains that high profit margins at Sandisk and other memory stocks have attracted the attention of China, which hopes to flood the market with cheap, mass-produced memory chips, undercut Western companies' pricing, and steal market share.

The recent IPO of Chinese DRAM manufacturer CXMT illustrated the risk, raising $8.5 billion in a day to fund its expansion. And while this isn't an immediate threat to Sandisk (which doesn't make DRAM), it highlights a risk if Chinese NAND manufacturers follow CXMT's lead.

This theory explains 20% of recent market volatility, says Pinder. "AI positioning capitulation" explains another 26%. Here, investors frustrated by continual pops and drops among semiconductor stocks are fleeing the sector and buying defensive stocks instead. Combined, these two theories explain most of the recent selling in semiconductors.

The opinion Sandisk fans prefer

But now here's the theory that has investors excited about semiconductors, and Sandisk especially, this morning:

37% of market volatility -- upside volatility -- comes when investors believe that AI hyperscalers such as Google, OpenAI, and Anthropic are overspending on AI capacity. These companies may never see a profitable return on their investment if revenue fails to grow as fast as spending. Meantime, though, all this spending on AI memory chips does benefit Sandisk immensely.

Strange as it sounds to say it, bad news for AI hyperscalers should be good news for Sandisk.

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 $397,081!* Or when Nvidia made this list on April 15, 2005... if you invested $1,000 at the time of our recommendation, you’d have $1,166,221!*

Now, it’s worth noting Stock Advisor’s total average return is 889% — a market-crushing outperformance compared to 203% 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 July 30, 2026.

Rich Smith has no position in any of the stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. The Motley Fool has a disclosure policy.

Disclaimer: For information purposes only. Past performance is not indicative of future results.
placeholder
Markets in 2026: Will gold, Bitcoin, and the U.S. dollar make history again? — These are how leading institutions thinkAfter a turbulent 2025, what lies ahead for commodities, forex, and cryptocurrency markets in 2026?
Author  Insights
Dec 25, 2025
After a turbulent 2025, what lies ahead for commodities, forex, and cryptocurrency markets in 2026?
placeholder
ECB Policy Outlook for 2026: What It Could Mean for the Euro’s Next MoveWith the ECB likely holding rates steady at 2.15% and the Fed potentially extending cuts into 2026, EUR/USD may test 1.20 if Eurozone growth proves resilient, but weaker growth and an ECB pivot could pull the pair back toward 1.13 and potentially 1.10.
Author  Mitrade
Dec 26, 2025
With the ECB likely holding rates steady at 2.15% and the Fed potentially extending cuts into 2026, EUR/USD may test 1.20 if Eurozone growth proves resilient, but weaker growth and an ECB pivot could pull the pair back toward 1.13 and potentially 1.10.
placeholder
My Top 5 Stock Market Predictions for 2026Five 2026 market predictions written in a native, news-style voice: AI’s winners and losers, broader sector leadership, dividend demand, valuation cooling as the Shiller CAPE sits at 39 (Dec. 31, 2025), and quantum-computing bursts—while keeping all original facts and numbers unchanged.
Author  Mitrade
Jan 06, Tue
Five 2026 market predictions written in a native, news-style voice: AI’s winners and losers, broader sector leadership, dividend demand, valuation cooling as the Shiller CAPE sits at 39 (Dec. 31, 2025), and quantum-computing bursts—while keeping all original facts and numbers unchanged.
placeholder
Gold declines despite easing concerns over inflation, interest rate hikesGold price (XAU/USD) loses ground after registering gains in the previous day, trading around $4,050 per troy ounce during the Asian hours on Tuesday.
Author  FXStreet
Jul 28, Tue
Gold price (XAU/USD) loses ground after registering gains in the previous day, trading around $4,050 per troy ounce during the Asian hours on Tuesday.
placeholder
WTI Oil flirts with the $80 level amid speculation about US-Iran peace talksOil prices remain depressed on Tuesday, as hopes of a new round of peace talks between the US and Iran boosted hopes of a de-escalation of the Middle East conflict.
Author  FXStreet
Jul 28, Tue
Oil prices remain depressed on Tuesday, as hopes of a new round of peace talks between the US and Iran boosted hopes of a de-escalation of the Middle East conflict.
goTop
quote