SanDisk (SNDK) Stock Soars 11.6% Today: Micron Technology (MU) and Western Digital (WDC) Also See Strong Gains

Monday was a strong day, to say the least, for memory and storage stocks. Shares of SanDisk (NASDAQ:SNDK), Micron Technology (NASDAQ:MU), and Western Digital (NASDAQ:WDC) all closed sharply higher, delivering a meaningful rebound after a volatile stretch for the sector. As we covered last week, following last week’s memory stock sell-off, SanDisk stock was down 4.9% for the week, Micron Technology stock fell 5.66%, and Western Digital stock dropped 2.92%.

Today’s broad-based gains suggest investors treated that pullback as a buying opportunity rather than a signal of deteriorating fundamentals. The central investment thesis remains intact: artificial intelligence (AI) infrastructure buildout is driving insatiable demand for NAND flash memory and high-capacity hard disk drives, and these three companies sit at the center of that story.

Stock Friday (Mar 6) Close Today’s Close (Mar 9) YTD Change SanDisk (SNDK) $527.33 $588.73 +148.01% Micron Technology (MU) $370.30 $389.32 +36.41% Western Digital (WDC) $245.25 $262.06 +52.20%

These closing prices are as of March 9, 2026.

SanDisk Stock: AI Memory Demand and NAND Shortage Drive Today’s 11.6% Surge

SanDisk (NASDAQ:SNDK) stock closed at $588.73 today, up 11.6% from Friday’s close of $527.33. The stock is up 148.01% year-to-date from $237.38 at year-end 2025, and up a staggering 1,054.37% over the past year from $51.

SanDisk spun off from Western Digital in February 2025 and has since become one of the market’s most remarkable performers. The company’s most recent earnings report told the story clearly: Q2 fiscal 2026 revenue came in at $3.025 billion, a 61.3% year-over-year increase, beating estimates by 12.54%. Non-GAAP EPS of $6.20 crushed the consensus estimate of $3.54; free cash flow came in at $980 million, up nearly 1,985% year-over-year.

Forward guidance was even more striking. For Q3 fiscal 2026, SanDisk guided for revenue of $4.40 billion to $4.80 billion with non-GAAP EPS of $12.00 to $14.00 and gross margins of 65% to 67%. That kind of margin expansion in a semiconductor company is not routine.

CEO David Goeckeler framed the moment well on the earnings call:

“This quarter’s performance underscores our agility in capitalizing on better product mix, accelerating enterprise SSD deployments, and strengthening market demand dynamics, all at a time when the critical role that our products play in powering AI and the world’s technology is being recognized.”

The NAND shortage narrative is a key pillar of the bull case. Nomura predicted SanDisk could double data-center storage chip prices in Q1 2026, and the structural memory shortage is unlikely to ease before 2028. On the analyst side, Bernstein raised its price target to $580 from $300, maintaining an Outperform rating, while multiple analysts have set targets ranging from $750 to $1,000; Zacks, meanwhile, rates SNDK a “Strong Buy.”

Micron Technology Stock: Strong AI Tailwinds and $400 Price Target Fuel the Rally

Micron Technology (NASDAQ:MU) closed at $389.32 today, up from Friday’s close of $370.30. The stock is up 36.41% year-to-date and has gained 320.18% over the past year from $92.66. Over 10 years, the stock is up by an astounding 3,403.65% from $11.11.

Micron Technology’s most recent quarter reinforced its position as a core AI infrastructure beneficiary. Q1 fiscal 2026 revenue hit $13.643 billion, up 56.6% year-over-year, with GAAP gross margin expanding to 56.0% from 38.4% the prior year. The company’s Cloud Memory Business Unit alone generated $5.284 billion in revenue at a 66% gross margin. Furthermore, Micron’s free cash flow hit a company record of $3.91 billion.

Bank of America (NYSE:BAC) lifted its MU stock price target to $400 from $300, citing a “robust pricing environment.” At today’s close of $389.32, that target implies modest additional upside. Moreover, the Polymarket prediction market currently prices the probability that Micron Technology will beat its next quarterly earnings at 97.7%, expiring March 18, 2026. That kind of crowd conviction is notable.

CEO Sanjay Mehrotra has been direct about the company’s positioning: “Micron’s technology leadership, differentiated product portfolio, and strong operational execution position us as an essential AI enabler. He confidently added that Micron is “investing to support our customers’ growing need for memory and storage.”

Western Digital Stock: HDD Demand and Hyperscaler Partnerships Drive the Rebound

Western Digital (NASDAQ:WDC) closed at $262.06 today, up from Friday’s close of $245.25. The stock is up 52.20% year-to-date from $172.19 at year-end 2025, and has surged +531.09% over the past year from $41.53.

Western Digital is now a pure-play HDD company following the SanDisk spinoff. The company no longer produces SSDs; those products now carry the SanDisk brand. That’s a meaningful shift in identity, and Western Digital is now a bet on mass storage capacity for AI data centers rather than flash memory pricing cycles.

So far, the thesis is working. Reddit discussions highlighted that Western Digital has its 2026 HDD capacity 100% sold out, with hyperscaler AI data center cloud accounting for 89% of revenue and long-term supply deals extending to 2028.

That’s the kind of visibility that makes analysts comfortable. Zacks highlighted Western Digital’s deepening hyperscaler partnerships as strengthening its competitive moat. The consensus analyst price target sits at $321, with a high-confidence model target of $379, representing meaningful upside from today’s close. CEO Irving Tan has pointed to the “AI-driven data economy” as the core demand driver.

SNDK, MU, and WDC: A Powerful Narrative

The memory and storage sector’s AI demand narrative remains one of the most powerful in all of tech. Today’s across-the-board gains in SNDK, MU, and WDC stocks suggest last week’s pullback was viewed by investors as a buying opportunity rather than a fundamental shift.

Analysts generally project continued NAND price strength, and hyperscaler spending on AI infrastructure shows no signs of slowing. Consequently, all three memory/storage stocks mentioned today are positioned to remain in focus in the weeks ahead.

That said, memory stocks are historically cyclical and volatile. Today’s gains could reverse quickly if macro conditions shift or AI capital expenditure expectations come under pressure, so watch the tape closely.